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Software and tools
116 records Generated from this page's data. Click a name to open its panel on the Places: London page. Records resting on one source are tagged "one source".| Record | What it is | Place | Links | Confidence |
|---|---|---|---|---|
| Acyclic LabsCompanies | Open-source tools and a managed platform for running many AI agents in parallel on long tasks.agent swarm infrastructureKey facts Team size 2 (YC profile, 2026-10); YC Fall 2026 batch | London | ycombinator.com/companies/acyclic | one source |
| AI ScoreCompanies | Makes software that shows organisations, as it happens, how their staff and systems use generative AI and AI agents, so they can control it. | London | Companies House · tech.eu/2026/09/04/uk-startup-ai-score-raises-54 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| Artificial SocietiesCompanies | London company that simulates hard-to-reach audiences such as investors and policy influencers so firms can test decisions and messages.simulated audiencesKey facts Team of 18; YC Winter 2025; product Radiant claims 18 million+ responses for F100 firms (company claim); YC page lists Business Insider headline on a $5.35M round (2025-08-27) | London | ycombinator.com/companies/artificial-societies | one source |
| ArtilCompanies | Gives AI agents their own email addresses and phone numbers; also launched Fira, a financial-data MCP.agent identity infrastructureKey facts Team size 2 (YC profile, 2026-10); YC Winter 2025 batch | London | ycombinator.com/companies/artil | one source |
| Assembled (UK office)Companies | San Francisco firm selling customer-facing AI agents and support workforce management; opened a London office as its European base in 2025.support agents and workforce managementKey facts Founded 2018; Series B $51m (£37.8m) (2022, per linked report); named clients Etsy, Robinhood, Stripe (2025-06) | London | uktech.news/ai/assembled-opens-london-office-202 | one source |
| AtlaCompanies | Trains AI models whose job is to check and score the answers of other AI models.AI evaluation | London | atla-ai.com/jobs/research-engineer · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · ycombinator.com/companies/atla | one source |
| AttioCompanies | Customer relationship management software built around AI tools and agents.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC1M 4EA ) | Companies House · uktech.news/ai/attio-ai-crm-series-b-20250827 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · uktech.news/saas/attio-series-a-20230303 | verified |
| AutumnCompanies | Open-source billing layer on top of Stripe that lets AI start-ups set usage, credit and subscription pricing.AI pricing and billing infrastructureKey facts Team size 5 (YC profile, 2026-10); says used in production by "100s of developers" | London | ycombinator.com/companies/autumn | one source |
| Blue PrismCompanies | Robotic process automation (RPA) software firm, delisted from the London Stock Exchange after a £1.24bn takeover by US group SS&C. acquiredrobotic process automationKey facts Over 2,000 clients (2022-02); £1.24bn takeover by SS&C after bidding contest with Vista Equity Partners (about £1.22bn) (2022-02); SS&C said it would keep the London headquarters (2022-02) | London | uktech.news/ai/blue-prism-takeover-delisting-202 · uktech.news/news/72289-20190620 | one source |
| BoltzbitCompanies | London start-up whose platform lets businesses build AI models without writing code.machine-learning platforms | London (registered office) (NW1 3AD) | Companies House · uktech.news/ai/boltzbit-seed-funding-20220316 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| Builder.ai (Engineer.ai Global Limited)Companies | Sold a service that let businesses order custom software apps assembled from reusable parts, marketed as driven by AI; it collapsed in 2025. wound_down | London (E14 4HD, registered office in liquidation) | Companies House · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · tech.eu/2025/05/20/ai-unicorn-builderai-confirms | verified |
| CallosumCompanies | Builds software that matches each AI task to the best mix of chips and computers to run it.AI compute orchestrationProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London | Companies House · uktech.news/funding/uk-tech-funding-roundup-this · find-and-update.company-information.service.gov. · gov.uk/government/publications/uk-ai-hardware-pl · gov.uk/government/news/ai-firms-pioneering-drug- | one source |
| Canonical (AI and MLOps products)Companies | London-dated publisher of Ubuntu that ships Charmed Kubeflow and other open-source tools for training and serving AI models.open-source MLOps stackKey facts Charmed Kubeflow certified under NVIDIA DGX-Ready Software (2023-03-21); Charmed Kubeflow 1.9 GA with NVIDIA NIM and Triton serving (2024-08-01); Ubuntu certified on Qualcomm Dragonwing IQ-8275 edge AI kit (2026-09-08) | London (dateline) | canonical.com/blog/scale-enterprise-ai-with-cano · canonical.com/blog/kubeflow-1-9-ga | one source |
| CapturCompanies | Lets businesses build their own image-recognition checks that run on a smartphone camera.computer vision | London | Companies House · uktech.news/ai/image-recognition-startup-captur- · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · mmc.vc/portfolio/ | verified |
| causaLensCompanies | Makes software that works out cause and effect in business data and now sells AI agents that help companies make decisions.causal AIProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | The Ark, Unit 7A, 201 Talgarth Road, London (W6 8BJ) | Companies House · causalens.com/?p=10997 · businesswire.com/news/home/20240924312268/en · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| CausalyCompanies | Makes an AI research platform that reads biomedical papers and data so scientists at drug companies can find evidence and targets faster.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (WC1X 0BJ) | Companies House · uktech.news/medtech/ai-biotech-research-platform · find-and-update.company-information.service.gov. · uktech.news/news/uks-machine-learning-startup-ca | one source |
| CodeWordsCompanies | London start-up building AI agents that learn how a business runs and then build automations for non-technical staff.business automation | London | uktech.news/ai/agentic-building-tool-codewords-r · tech.eu/2026/05/07/codewords-raises-9m-to-bring- | one source |
| CognaCompanies | London software firm that uses AI to build custom business applications for each client. | London (WC2A 1QS) | Companies House · tech.eu/2024/03/07/cognas-ai-powered-saas/ · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · technation.io/upscale-2026-cohort-announcement/ | verified |
| ComposalCompanies | Sends swarms of AI agents to use a product as its customers would, finding bugs before release. | London (—) | ycombinator.com/companies/composal · ycombinator.com/companies/industry/Developer%20T | one source |
| ConductCompanies | An AI system that maps large companies' customised legacy software so teams can understand and change it.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (W1T 3ND) | Companies House · uktech.news/ai/ai-operating-system-startup-condu · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · uktech.news/ai/agentic-ai-startup-conduct-raises | verified |
| Context.aiCompanies | Analytics for developers of AI chatbots, showing where a large language model product performs well and where it fails.developer tools | London | uktech.news/ai/context-ai-funding-google-2023083 | one source |
| ConveoCompanies | London firm whose AI moderator interviews real people on video and builds a searchable store of consumer insight for brands and agencies.AI-moderated video interviewsKey facts Team of 90; YC Summer 2024; YC page lists news headlines "Conveo raises $50M Series A" (2026-09-02) and "$5.3M" (2025-03-06) | London | ycombinator.com/companies/conveo | one source |
| CortexicaCompanies | London visual-search company, spun out of Imperial College, whose AI recognises what is in images and video, used by retailers. unknown (last report 2017-04)AI visual searchKey facts £2m from Touchstone Innovations (2017-04); £3.9m raised in the previous year (2017-04); customers John Lewis, Macy's, Zalando (2017-04); offices London and San Francisco (2017-04) | London | uktech.news/news/london-based-cortexica-gets-2m- | one source |
| CosineCompanies | Makes Genie, an AI software engineer that fixes bugs, builds features and rewrites code on its own or with human developers.coding agentsProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. Models and products (3)
| London (and San Francisco) | tech.eu/2024/08/12/uk-ai-startup-cosine-raises-2 · gov.uk/government/news/ai-firms-pioneering-drug- · tech.eu/2026/04/17/cosine-goes-from-benchmark-le · ycombinator.com/companies/cosine | one source |
| cubicCompanies | AI code-review service that checks pull requests, flags bugs and suggests fixes.AI code reviewKey facts Team size 6 (YC profile, 2026-10); says teams merge PRs 28% faster; users named in launch post: cal.com, n8n, Linux Foundation | London | ycombinator.com/companies/cubic | one source |
| Deeptide (Atlas ML; Papers With Code)Companies | Small London company behind Papers With Code, a free website linking machine-learning research papers to their code. dissolved | London (registered office) (NW1 3FG) | Companies House · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · techcrunch.com/2020/02/10/facebook-quietly-acqui | verified |
| DoublewordCompanies | London AI start-up; the lead says it makes software for running large language models, but no page opened in this session describes its product.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London | uktech.news/funding/uk-tech-funding-roundup-juic · find-and-update.company-information.service.gov. · gov.uk/government/news/ai-firms-pioneering-drug- | one source |
| DtechtiveCompanies | Software that uses AI to improve the descriptions (metadata) of datasets so people can find them.data discovery | London (registered office only) (WC2H 9JQ ) | Companies House · techuk.org/membership/members/6d76791c-8e31-f011 · find-and-update.company-information.service.gov. | verified |
| DucoCompanies | Cloud platform that helps banks and other financial firms standardise, check and match their data.data reconciliationKey facts Clients use it "globally at a strategic level" (2018-01); plans to grow headcount in Europe and US (2018-01) | London (article tag) | uktech.news/news/investment-news/data-firm-duco- | one source |
| EncordCompanies | Makes software that AI teams use to organise, label and check the images, video, sensor and text data used to train models, with a focus on robots and vehicles.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC2A 4NE) | Companies House · bolsamania.com/nota-de-prensa/mercados/encord-se · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · tech.eu/2026/10/15/ai-europes-10-most-funded-com | verified |
| Evidently AICompanies | Open-source tool for monitoring and evaluating machine-learning and LLM systems in production.open-source ML monitoringKey facts Team size 2 (YC profile, 2026-10); YC Summer 2021 batch; GitHub evidentlyai | London | ycombinator.com/companies/evidently-ai | one source |
| EvoluteIQCompanies | Agentic AI platform that automates decisions and routine work for banks, insurers and healthcare firms.process automationProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC2A 2AP ) | Companies House · uktech.news/ai/evoluteiq-secures-40m-growth-capi · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · uktech.news/funding/uk-tech-funding-roundup-this | verified |
| Faculty (Faculty Frontier)Companies | Sells AI services and Frontier, a software platform that helps organisations use data and AI models to make decisions; now owned by Accenture. acquired | London (EC1V 9BW) | Companies House · apax.com/news-views/accenture-to-acquire-faculty · itpro.com/business/acquisition/accenture-faculty · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| Gecko SecurityCompanies | AI tool that finds, verifies and fixes security flaws in application code.AI code security testingKey facts Team size 2 (YC profile, 2026-10); says 30+ CVEs found in projects incl. Ollama, Gradio, Ragflow | London | ycombinator.com/companies/gecko-security | one source |
| GensynCompanies | A network that pools idle graphics processors around the world so developers can train machine-learning models more cheaply.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (N1 7SR) | Companies House · uktech.news/ai/gensyn-ai-startup-funding-2022032 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · joinef.com/portfolio/ | verified |
| Geordie AICompanies | Makes software that lets companies see which AI agents they run, what those agents can access and do, and the risks they pose.AI agent security | London (EC2A 4NA) | Companies House · uktech.news/ai/geordie-ai-raises-22-3m-for-secur · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| GranolaCompanies | Makes an AI notepad that takes rough meeting notes, adds the transcript and turns conversations into usable notes and context for teams.productivityProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London | Companies House · uktech.news/ai/ai-notepad-granola-secures-unicor · businesswire.com/news/home/20250514342646/en/Gra · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| HadeanCompanies | London defence company that uses AI and spatial computing to simulate conflicts for training and planning.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC2A 2AP) | Companies House · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · uktech.news/defence-tech/ai-conflict-simulation- · uktech.news/vr/hadean-raises-30m-for-metaverse-e | one source |
| HarbrCompanies | London platform that lets large organisations exchange and share big data sets securely.enterprise data exchangeKey facts Series A came six months after leaving stealth (2020-11) | London | tech.eu/features/34153/today-in-european-tech-ha · uktech.news/featured/uk-tech-news-roundup-novemb | one source |
| HazyCompanies | Made software that produced artificial copies of sensitive datasets for banks and others to use safely; its software was sold to SAS in 2024. acquiredsynthetic data | London (N12 8LY, liquidators' address) | Companies House · sas.com/en_gb/news/press-releases/2024/november/ · find-and-update.company-information.service.gov. · thestack.technology/synthetic-data-hazy-series-a · find-and-update.company-information.service.gov. | verified |
| HelixDBCompanies | Open-source database that combines graph and vector search so AI agents can store and recall context.graph-vector databaseKey facts Team size 6 (YC profile, 2026-10); YC Spring 2025 batch; GitHub HelixDB/helix-db | London | ycombinator.com/companies/helixdb | one source |
| Hello Lamp PostCompanies | A chatbot attached to places, so people can text or scan a code to talk to a street, park or building. | London (registered office) (E14 3QF ) | Companies House · applytosupply.digitalmarketplace.service.gov.uk/ · find-and-update.company-information.service.gov. | verified |
| HessianCompanies | Engineers map a client's workflows, then build and run AI agents on Hessian's platform to do that work.forward-deployed agent platformKey facts Team size 3 (YC profile, 2026-10); YC Spring 2026 batch | London | ycombinator.com/companies/hessian | one source |
| Human NativeCompanies | A marketplace where owners of text, images and video license their content as training data to AI developers. acquired | London (SE1 7PB) | Companies House · businesscloud.co.uk/news/65bn-cloudflare-makes-s · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| Human Native AICompanies | Marketplace where AI developers license content from rights holders to train their models. acquired | London (SE1 7PB ) | Companies House · uktech.news/ai/human-native-ai-funding-20240604 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| HumanloopCompanies | Made software for managing prompts and for testing and monitoring apps built on large language models; its team joined Anthropic in 2025 and the product closed. wound_downLLM evaluation | London (operating base as reported); registered office Cambridge (CB1 2LA) | Companies House · techcrunch.com/2025/08/13/anthropic-nabs-humanlo · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | one source |
| HumbleCompanies | No-code platform that lets non-technical staff build and share AI apps and automated workflows. | London (—) | cloud.google.com/blog/topics/startups/announcing · cloud.google.com/blog/topics/startups/graduating | one source |
| incident.ioCompanies | London incident-management platform building AI agents that investigate outages and propose fixes.AI SRE incident agentsKey facts Customers named: Netflix, Etsy, OpenAI, Airbnb (2025-04); 250,000+ incidents handled (2025-04); about 30 staff (2022-07); AI SRE "Investigations" launched 2025-07-02 | London | incident.io/blog/incident.io-raises-62m · uktech.news/saas/incident-io-funding-20220713 | one source |
| InephanyCompanies | Software that optimises how large language models are trained, to cut training costs.machine-learning infrastructure | London (WC2B 6NH) | Companies House · uktech.news/ai/inephany-raises-1-7m-to-optimise- · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| inforcerCompanies | Security and management platform for managed IT service providers, described as an AI security platform.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | Richmond, London (TW9 1SR ) | Companies House · tech.eu/2026/08/03/european-tech-weekly-recap-eu · find-and-update.company-information.service.gov. · uktech.news/saas/inforcer-raises-26m-to-bridge-g | verified |
| Instill AICompanies | Open tools that turn images, video, audio and text into structured data that AI applications can use. in_liquidationdata infrastructure | London (as published) | Companies House · uktech.news/ai/instill-ai-funding-deepmind-20230 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| InthCompanies | Scans pull requests, code and websites for privacy problems and turns them into fixes; makes open-source consent library c15t.privacy code scanningKey facts Team size 3 (YC profile, 2026-10); YC Spring 2026 batch | London | ycombinator.com/companies/inth | one source |
| Kleene.aiCompanies | London cloud platform that extracts, loads and transforms company data so analysts and business users can work with it.ELT data platformKey facts Customers The Modern Milkman, Blue Light Card, VROMO (2021-04); planned support for Azure Synapse Analytics and Google BigQuery (2021-04) | London | uktech.news/big-data/kleeneai-raises-15m-to-buil | one source |
| LaminarCompanies | Open-source tracing and debugging platform that records every LLM call and tool use by AI agents.AI agent observabilityKey facts Team size 6 (YC profile, 2026-10); users named: Browser Use, OpenHands, Rye.com, Alai (2026-03); default observability tool in Browser Use docs (2026-03) | London | tech.eu/2026/03/17/agent-debugging-startup-lamin · ycombinator.com/companies/laminar | one source |
| LeerooCompanies | London start-up whose AI learns a firm's knowledge and expert playbooks and runs data and AI programmes on its systems with human approval.trainable enterprise agentsKey facts Team of 3; YC Spring 2025; seeking pilots in banking, finance and healthcare | London | ycombinator.com/companies/leeroo | one source |
| LifebitCompanies | London company whose federated platform lets researchers analyse sensitive genomic and health data where it sits, without moving it.federated research environmentsKey facts Genomics England contract covering a 135,000-strong cohort (2021-09); three-year NIHR BioResource trusted research environment contract (2026-09); three-year Boehringer Ingelheim renewal after 4+ years (2026-09); Singapore R&D centre with Synapxe (2024-02); Genomics England selected Lifebit for enhanced research environment (2026-07) | London | lifebit.ai/blog/lifebit-raises-60-million-access · uktech.news/news/investment-news/lifebit-gets-3m | verified |
| LightdashCompanies | Open-source business intelligence platform for companies' data stacks, run from London and San Francisco.open-source BIKey facts Seed $8.4m (2022-10); Series A £8m (2024-10); company jointly registered in US and UK (2022-10); runs "Lightdash University" training scheme (2022-10) | London | uktech.news/big-data/lightdash-raises-7-4m-20221 · uktech.news/funding/uk-tech-funding-roundup-this | one source |
| Lovable (UK base)Companies | Makes a service that lets people build websites and software apps by describing them in plain English.AI app builders | Second Home, 68 Hanbury Street, London (E1 5JL) | Companies House · lovable.dev/careers/london-workplace-manager-2c0 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| Lua (Lua Global Inc)Companies | "AgentOS" for building and running AI agents for sales, support and operations, sold through agencies and channel partners.mid-market agent OSKey facts Team size 5 (YC profile, 2026-10); says team built 300+ SMB agents for partners | London | ycombinator.com/companies/lua-global-inc | one source |
| ManaMindCompanies | Autonomous AI agents that play video games to find bugs and write reports while the game is being built.AI agents for game testingKey facts Design partners: Included Games, Crazy Labs (2026-04) | London | tech.eu/2026/04/30/manamind-secures-15m-to-devel | one source |
| MetaviewCompanies | London start-up whose AI records and analyses job interviews, writing notes and reports for recruiters.AI interview notetakerKey facts more than 3 million interviews recorded (2025-06); users named include Sony, ElevenLabs, Deliveroo (2025-06) | London | uktech.news/ai/google-ventures-leads-25-5m-inves · uktech.news/funding/uk-tech-funding-roundup-orio | one source |
| MeticulousCompanies | Records real user sessions and replays them against each code change to catch interface bugs, including in AI-written code.automated UI testingKey facts Team size 15 (YC profile, 2026-10); YC Summer 2021 batch | London | ycombinator.com/companies/meticulous | one source |
| MimicaCompanies | London company that watches how staff do tasks and turns this into process maps used to train compliant AI agents.process intelligence for agentsKey facts Over 30 enterprise customers including multiple Fortune 500 firms (2025-09); ARR up more than 570% in 18 months (2025-09); Series B £19.5m (2025-09) | London | businesscloud.co.uk/news/mimica-raises-19-5m-to- | one source |
| Mindset AICompanies | Platform that lets software companies embed AI agents into their own products.developer tools | London (E1 5JL ) | Companies House · uktech.news/ai/embedded-agent-startup-mindset-ai · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| mlopCompanies | Open-source experiment-tracking platform for teams training machine-learning models.ML experiment trackingKey facts Team size 2 (YC profile, 2026-10); YC Spring 2025 batch; GitHub org mlop-ai | London | ycombinator.com/companies/mlop | one source |
| Monolith AICompanies | Makes machine-learning software that engineers use to learn from physical test data so they can run fewer tests on products such as cars and batteries. acquired | London (SE1 9EA) | Companies House · coreweave.com/news/coreweave-to-acquire-monolith · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · uktech.news/news/london-ai-startup-monolith-ai-f | verified |
| MotivesCompanies | London start-up running qualitative consumer research and focus groups with AI interviewers for large consumer brands.AI-run focus groupsKey facts YC Summer 2025; case study with Wild (a Unilever acquisition) testing packaging concepts | London | ycombinator.com/companies/motives | one source |
| NeuracoreCompanies | Software and data infrastructure that robotics teams use to collect data and train robots with machine learning. | London | uktech.news/ai/neuracore-funding-free-academics- | one source |
| NeuralSpaceCompanies | Speech and language-processing tools for many languages, sold to developers and businesses. dissolvedspeech and language technology | London | Companies House · uktech.news/ai/neuralspace-funding-seed-20220920 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| NiaCompanies | AI assistant for software engineers that they can query through an API, Slack or the Cursor editor.developer tools | London (founder's base per source) | uktech.news/ai/ai-startup-founded-by-18-year-old | one source |
| NorthflankCompanies | London developer platform that runs apps, databases and GPU AI workloads on its cloud or a customer's own cloud.developer platform with GPUsKey facts 35,000+ developers, 1m+ container deployments a month (2024 review); 18+ GPU types incl. NVIDIA H100, H200, B200, GB300 (product page, 2026-10); customers named: Sentry, Writer, Weights, Chai Discovery | London | northflank.com/blog/northflank-raises-22m-to-mak · northflank.com/blog/northflank-2024-pr-merged-ap | one source |
| NoxusCompanies | London start-up selling an "AI operating system" that lets businesses set up teams of AI agents to handle repetitive work under human guidance.enterprise automation | London | businesscloud.co.uk/news/ai-startup-on-google-gr | one source |
| OmetriaCompanies | Makes customer-data and marketing software for retailers that uses AI to predict which shoppers will buy and when.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (registered office NW1 3ER) | Companies House · uktech.news/ecommerce/cibc-innovation-banking-om · find-and-update.company-information.service.gov. · uktech.news/news/investment-news/martech-startup · uktech.news/guest-posts/funding/customer-marketi | one source |
| OpenDialogCompanies | A platform for designing and running chat-based AI assistants without writing code.conversational AI | London (WC2R 0EX) | Companies House · uktech.news/ai/opendialog-ai-4m-20220524 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| PaidCompanies | Makes billing and pricing software that lets companies selling AI agents charge customers for the results the agents deliver.AI agents | London (EC1R 3AL) | Companies House · techcrunch.com/2025/09/28/paid-the-ai-agent-resu · stories.eqtventures.com/articles/rewriting-the-r · geekwire.com/2025/paid-a-new-ai-agent-billing-st · find-and-update.company-information.service.gov. | verified |
| Parloa (UK office)Companies | Berlin-based AI agent platform for customer communications; opened its first London office in June 2026.enterprise voice AI agentsKey facts Series D $350m (£260m) at $3bn valuation (2026-01); unicorn since 2025-05; offices Berlin, Munich, New York, France, Spain; Milan from 2026-07-01 (2026-06) | London | uktech.news/news/berlin-based-unicorn-parloa-ope · tech.eu/2026/10/15/ai-europes-10-most-funded-com | one source |
| ParsewiseCompanies | London start-up whose API extracts and checks data across many documents for insurance risk teams, AI agents and data pipelines.multi-document processing APIKey facts Team of 6; YC Spring 2025; customers UBS, Compre Group, Thinksurance; use cases submission intake and claim portfolio risk | London | ycombinator.com/companies/parsewise | one source |
| PhoebeCompanies | AI agents that watch live software systems, diagnose problems as they appear and propose code fixes.developer toolsProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London | uktech.news/ai/phoebe-funding-google-ventures-20 | one source |
| PlexeCompanies | Open-source agent that turns a written problem description into a trained ML model served behind an API.prompt-to-model agentKey facts Team size 2 (YC profile, 2026-10); YC Spring 2025 batch; launch post created 2025-05-21 | London | ycombinator.com/companies/plexe · ycombinator.com/launches/NZ7-plexe-build-ml-mode | one source |
| Prevalent AICompanies | London company selling an AI software platform to large organisations.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (registered office) | Companies House · tech.eu/2026/08/24/european-tech-weekly-recap-mo · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · uktech.news/cybersecurity/prevalent-ai-secures-1 | verified |
| PrivitarCompanies | London privacy software firm, joint winner of the UK-US PETs prize, bought by the US data company Informatica in 2023. acquiredprivacy engineering softwareKey facts Customers HSBC, NHS Digital and BT (2019-06); NHS Digital De-ID contract for de-identifying patient records (2018-06); joint 1st place, UK PETs prize, as STARLIT team with UCL and Cardiff University (2023-03); phase-one PETs prize winner (2022-11); acquisition announced 2023-06-14, completed by 2023-08-02 | London | nasdaq.com/press-release/informatica-announces-i · gov.uk/government/news/at-summit-for-democracy-t | verified |
| ProlificCompanies | Runs an online pool of checked, paid participants that researchers and AI developers use to collect human data and test AI systems.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (N13 4BS) | Companies House · prolific.com/resources/series-a-fundraise · techcrunch.com/2023/07/11/prolific-raises-32m-to · find-and-update.company-information.service.gov. · ycombinator.com/companies/industry/aiops/london | verified |
| PydanticCompanies | Maintains Pydantic, free software that checks data in Python programs, and sells Logfire, a tool that shows developers how their software and AI apps are running.developer toolsProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (SW8 5EL) | Companies House · techcrunch.com/2024/10/01/sequoia-backs-pydantic · find-and-update.company-information.service.gov. · pydantic.dev/articles/pydantic-validation-10-bil · uktech.news/cloud/pydantic-sequoia-20230217 | verified |
| QatalogCompanies | London-headquartered maker of collaboration software for distributed teams, linking tools such as Slack and Zoom.AI work hubKey facts Total raised £14.7m, nearly £12m in an October 2020 Series A (2022-04); 48 staff from 18 nationalities (2022-04); users include Nvidia, Twitter and Airbnb (2022-04) | London | uktech.news/news/founder-interviews/qatalog-foun | one source |
| QuixCompanies | London cloud platform for building real-time, event-driven data applications, started by four former McLaren engineers.real-time data streamingKey facts Earlier £2.3m seed (before 2022-11); Series A for product development and open-source work (2022-11) | London | uktech.news/saas/quix-series-a-20221114 | one source |
| RaycastCompanies | London productivity launcher for developers, with an extensions store and early team features (2021).Mac productivity launcherKey facts Daily active users over 11,000, up from 130 in October 2020 (2021-11); 20 million actions performed (2021-11); 100+ community extensions within a month of launching the Extensions API (2021-11) | London | uktech.news/funding/raycast-funding-public-beta- | one source |
| Receipt BankCompanies | London bookkeeping platform that pulls data from receipts and invoices for accountants and small businesses. active (last confirmed)receipt and invoice extractionKey facts 200 staff (2017-08); total raised $65m (2017-07) | London | uktech.news/news/receipt-bank-lands-50m-series-b · uktech.news/news/michael-wood-of-receipt-bank-on | one source |
| RossumCompanies | Document-processing software that uses AI to read invoices and other business documents; bought by Coupa in 2026. acquireddocument processing | London (registered office) | Companies House · businesscloud.co.uk/live-blog/san-franciscos-cou · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · seedcamp.com/our-companies/ | verified |
| RunLocal AICompanies | AI agents that tune models to run on in-vehicle and robot chips such as NVIDIA Orin and Qualcomm.edge inference optimisationKey facts Team size 3 (YC profile, 2026-10); YC Summer 2024 batch; investors named: Y Combinator, 468 Capital | London | ycombinator.com/companies/runlocal-ai | one source |
| SecondmindCompanies | Cambridge-founded AI company; the lead says it sells machine-learning software that helps car makers design and calibrate engines and vehicles (not verified here).Models and products (1)
| London (registered office EC2V 6DN) | Companies House · find-and-update.company-information.service.gov. · uktech.news/news/cambridge-ai-startup-prowler-io · secondmind.ai/secondmind-labs · secondmind.ai/ | verified |
| SecretariumCompanies | Privacy technology provider behind DANIE, a consortium of banks and data providers that checks client data without exposing it.confidential computingKey facts DANIE platform launched 2020, used for client data quality, anti-money laundering and fraud checks (GOV.UK case study added 2023-06) | London (Société Générale incubator) | gov.uk/guidance/repository-of-privacy-enhancing- | one source |
| SeldonCompanies | Made software for putting machine-learning models into live use, serving their answers and monitoring them; bought by US firm TrueFoundry in 2026. acquiredMLOpsProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC4N 6EU, liquidator's address) | Companies House · truefoundry.com/ar/press-room/truefoundry-acquir · sdxcentral.com/news/truefoundry-snaps-up-seldon- · find-and-update.company-information.service.gov. · uktech.news/ai/seldon-series-b-funding-20230316 | verified |
| SharebackCompanies | Workplace platform giving employees secure AI assistants trained on their own company, department or project data. | London (—) | cloud.google.com/blog/topics/startups/announcing · cloud.google.com/blog/topics/startups/graduating | one source |
| SilicoCompanies | London start-up whose simulation software let firms test business decisions before making them. dissolveddecision support | London | Companies House · uktech.news/featured/ai-startup-silico-raises-3- · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| SmoothCompanies | Two-person London start-up making an AI agent that operates a web browser on its own.AI browser agentKey facts Team of 2; listed in YC Fall 2024 (London list) | London | ycombinator.com/companies/smooth · ycombinator.com/companies/location/london | one source |
| SnowplowCompanies | Makes software that collects and organises records of what customers do online, which companies use for analytics and to build data products.customer dataProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC2A 4HH) | Companies House · uktech.news/news/snowplow-analytics-announces-4m · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| SolidatusCompanies | London software that maps how data flows through an organisation's systems, used by banks, drug firms and government.data lineageKey facts Four of the top 10 global systemically important banks in Europe and US as clients (2021-02); "doubled in size" in 2020 (2021-02); sectors include aerospace, manufacturing, telecoms and government (2021-02) | London | uktech.news/news/london-based-next-gen-data-mana | one source |
| SolveAICompanies | Makes a no-code platform on which businesses describe the software they need and AI builds it, linked to their existing systems.AI app buildersProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London (EC4A 1JP) | Companies House · uktech.news/ai/google-ventures-leads-solveais-33 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| Source.devCompanies | Developer platform that simplifies building and updating software for smart devices; chosen for Google's AI First UK accelerator. | London (—) | cloud.google.com/blog/topics/startups/graduating · seedcamp.com/our-companies/ | verified |
| SparklesCompanies | Lets anyone in a team start coding agents (Claude Code, Codex, OpenCode) on the company's GitHub code; each run ends as a pull request.team coding agentsKey facts Team size 2 (YC profile, 2026-10); YC Winter 2026 batch | London | ycombinator.com/companies/sparkles | one source |
| Splink (Ministry of Justice)Chips, models and products | Free, open-source tool built by the Ministry of Justice that links records likely to belong to the same person.probabilistic data linkageKey facts Used for MoJ Data First linked datasets in the ONS Secure Research Service and SAIL Databank; about 40 research projects supported (2024-12); linkage pipelines run weekly | London | gov.uk/algorithmic-transparency-records/moj-data | one source |
| Stanhope AICompanies | UCL spin-out building AI that makes decisions on its own, modelled on how the brain works.agentic AIModels and products (1)
| London | Companies House · uktech.news/ai/stanhope-funding-ai-human-brains- · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · mmc.vc/portfolio/ | verified |
| SynthesizedCompanies | Makes software that generates realistic stand-in data so companies can test software and train models without using real customer records.synthetic data | London (E1 6HU) | Companies House · techcrunch.com/?p=1956828 · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · seedcamp.com/our-companies/ | verified |
| TesslCompanies | Makes a platform that gives AI coding agents structured, versioned instructions so software teams can build and maintain code with them.coding agentsProfile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | 210 Pentonville Road, London (N1 9JY) | Companies House · tessl.io/about · uktech.news/tech-hubs/snyk-founder-guy-podjarny- · find-and-update.company-information.service.gov. · snyk.io/blog/snyk-tessl-partnership/ | verified |
| throxyCompanies | London company running B2B outbound sales with AI agents plus human sales staff, aimed at manufacturing, logistics and other traditional industries.AI outbound sales agentsKey facts Team of 55 across London and Cape Town; YC Spring 2025; books on average 8 to 12 qualified meetings per client a month (company claim) | London | ycombinator.com/companies/throxy | one source |
| TraceCompanies | London start-up whose platform hands work between AI agents and people, used by 30+ companies to automate routine tasks.human-AI workflow orchestrationKey facts Team of 3; YC Summer 2025; more than 30 companies use it (YC launch post); YC page lists a news headline that Trace raised $3M (2026-02-25) | London | ycombinator.com/companies/trace-so | one source |
| Trent AICompanies | Makes security software, run by AI agents, for teams building AI agents, to keep their code, infrastructure and running systems secure.AI agent security | London (registered office EC2A 4NA) | Companies House · uktech.news/ai/trent-ai-raises-9-7m-to-boost-its · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · tech.eu/2026/04/07/openai-and-spotify-leaders-ba | verified |
| Trigger.devCompanies | Developer platform, tagged open source by Y Combinator, for building and running managed AI agents and workflows. | London (—) | ycombinator.com/companies/trigger-dev | one source |
| TurinTechCompanies | UCL spin-out whose Artemis platform uses evolutionary AI to optimise and check enterprise code.AI code optimisationKey facts $20m total raised (2025-03); Intel uses Artemis internally (2025-10); Artemis launched at NVIDIA GTC (2025-03-18); Artemis developer preview (2025-12) | London | turintech.ai/news/turintech-reveals-20m-in-backi · uktech.news/news/founder-interviews/turintech-fo | one source |
| UnaricCompanies | Buys and combines Salesforce add-on software into a suite of AI-powered applications and agents. | London (EC2V 6DN ) | Companies House · tech.eu/2025/10/09/unaric-expands-its-uk-ai-foot · find-and-update.company-information.service.gov. | verified |
| UnifyCompanies | Started with a router sending each prompt to the best LLM provider; now building models that keep learning.LLM routing; continual learningKey facts Team size 3 (YC profile, 2026-10); YC Winter 2023 batch | London | ycombinator.com/companies/unify | one source |
| UnitaryCompanies | Makes AI that checks photos and videos for harmful content, so online platforms can moderate what users post.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | London | Companies House · uktech.news/tech-hubs/london/unitary-series-a-20 · tech.eu/2023/03/07/keeping-tabs-on-nsfw-or-other · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |
| V7Companies | Makes software for labelling images, video and documents to train AI models, and a tool that uses AI models to process business documents.Profile
Round 6 deep profile (30 Oct 2026), as the researchers wrote it; sources are listed in the record panel. | 60 Margaret Street, London (W1W 8TF) | Companies House · businesscloud.co.uk/news/v7-raises-27m-to-help-t · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · technation.io/unveils-latest-cohort-of-tech-scal | verified |
| Vibe Kanban (formerly bloop)Companies | Tool for planning and reviewing code written by coding agents such as Claude Code and Codex; formerly the code-search start-up bloop.coding-agent orchestrationKey facts Team size 10 (YC profile, 2026-10); YC Summer 2021 batch; GitHub bloopai | London | ycombinator.com/companies/vibe-kanban | one source |
| VoltaCompanies | London company that finances, builds and runs large AI data centres, with its own software, for AI labs. Scope edge: may belong on the data-centres page. | London | uktech.news/ai/volta-emerges-from-stealth-with-7 | one source |
| WluperCompanies | Built conversational AI for voice assistants with deep knowledge of one subject, starting with in-car navigation; the company was liquidated and dissolved in 2025. dissolvedconversational AI | London (registered office was 322 High Holborn until May 2024) | Companies House · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. · find-and-update.company-information.service.gov. | verified |