# Best AI Agencies for Project-Based Work in London > 16 agencies. Top-ranked: Pixelette Technologies, Datatonic, Fast Data Science. Canonical page: https://www.aiagencies.eu/for/project-based/london Generated: 2026-09-28 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold. ## Ranked roster 1. **Pixelette Technologies** — London, United Kingdom · €20-40/hr (directory-listed) · team 250+ · founded 2018 · services: AI Development, AI Agents, AI Consulting, Generative AI · 7 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/pixelette-technologies 2. **Datatonic** — London, United Kingdom · rate not published · team 50-249 · founded 2013 · services: AI Consulting, AI Development, Generative AI · 8 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/datatonic 3. **Fast Data Science** — London, United Kingdom · €175-260/hr (directory-listed) · team 2-9 · founded 2018 · services: AI Development, AI Consulting · 8 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/fast-data-science 4. **Kortical** — London, United Kingdom · €85-130/hr (directory-listed) · team 2-9 · founded 2016 · services: AI Consulting, AI Development, Generative AI · 8 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/kortical 5. **Found** — London, United Kingdom · €85-130/hr (directory-listed) · team 50-249 · founded 2005 · services: AI SEO, AI Marketing, AI Automation · 8 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/found 6. **Satalia** — London, United Kingdom · rate not published · team 50-249 · founded 2008 · services: AI Consulting, AI Development, AI Agents · 6 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/satalia 7. **Datasparq** — London, United Kingdom · rate not published · team 50-249 · founded 2018 · services: AI Consulting, AI Development, AI Agents · 6 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/datasparq 8. **Mercury Labs** — London, United Kingdom · €85-130/hr (directory-listed) · team 10-49 · founded 2018 · services: AI Consulting, AI Development, Generative AI · 6 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/mercury-labs 9. **Softblues** — London, United Kingdom · €45-85/hr (directory-listed) · team 10-49 · founded 2014 · services: AI Automation, AI Agents, AI Consulting, AI Development · 5 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/softblues 10. **Nebuli** — London, United Kingdom · rate not published · team 2-9 · founded 2019 · services: Generative AI, AI Development, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/nebuli 11. **Imobisoft** — London, United Kingdom · €45-85/hr (directory-listed) · team 10-49 · founded 2009 · services: AI Consulting, AI Development, Generative AI · 4 documented client engagements with source URLs · reviewed 2026-09-04 · https://www.aiagencies.eu/agency/imobisoft 12. **Ekimetrics** — London, United Kingdom · rate not published · team 50-249 · founded 2006 · services: AI Consulting, AI Marketing, Generative AI · 8 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/ekimetrics 13. **Faculty** — London, United Kingdom · rate not published · founded 2014 · services: AI Consulting, AI Development, AI Automation, AI Agents · 3 documented client engagements with source URLs · reviewed 2026-08-04 · https://www.aiagencies.eu/agency/faculty-ai 14. **Brainpool** — London, United Kingdom · €130-175/hr (directory-listed) · team 10-49 · founded 2017 · services: AI Consulting, AI Automation, AI Development · 3 documented client engagements with source URLs · reviewed 2026-08-04 · https://www.aiagencies.eu/agency/brainpool 15. **Neurons Lab** — London, United Kingdom · rate not published · team 50-249 · founded 2019 · services: AI Consulting, AI Agents, AI Development, Generative AI · 2 documented client engagements with source URLs · reviewed 2026-08-04 · https://www.aiagencies.eu/agency/neurons-lab 16. **The AI Consultancy** — London, United Kingdom · rate not published · services: AI Consulting, AI Development, Generative AI, AI Agents · 2 documented client engagements with source URLs · reviewed 2026-08-04 · https://www.aiagencies.eu/agency/the-ai-consultancy ## Compared head-to-head Curated comparison pages (published rates, team size, coverage, projected 12-week engagement cost, and the curator's verdict on both sides — pairings are never sold): - Datatonic vs Faculty: https://www.aiagencies.eu/compare/datatonic-vs-faculty-ai - Datatonic vs Satalia: https://www.aiagencies.eu/compare/datatonic-vs-satalia - Faculty vs Satalia: https://www.aiagencies.eu/compare/faculty-ai-vs-satalia ## About this market Project work documented in London leaves artifacts a buyer can inspect. Datatonic's AI Booster for Vodafone, an 18-month build on Vertex AI live in more than eight markets, cut proof-of-concept-to-production to about four weeks, and the MLOps templates behind it were released as open source. Fast Data Science's Clinical Trial Risk Tool for the Gates Foundation was deployed publicly, MIT-licensed and written up in Gates Open Research. Kortical's Deloitte tax automation took a computation from five hours to six minutes at above 90% accuracy over a six-month build, and its NHS Blood and Transplant forecasting reports a 54% reduction in platelet expiries. Satalia's Tesco last-mile engine, built in 2015, is described as still scheduling 100,000 deliveries a day. The sorting question in London is what you own when the project closes. Kortical sells platform and people together, and the curator's note is to ask what the license costs after the engagement and whether the models run without it; Nebuli builds on its own Nano Workspace stack; much of Datatonic's work sits inside Google Cloud partnerships. The open-sourced Vodafone templates and the MIT-licensed Gates tool are the other shape: deliverables a client could run alone. Ask whether the handover is code in your repository, a license you keep paying or a platform relationship, and ask for the return figure, since Datatonic's AstraZeneca and Alpian write-ups quantify engineering rather than outcome, Mercury Labs' project pages publish no metrics or live status, and Softblues labels each flagship by the stage it reached. ## Questions buyers ask ### How many AI agencies work with project-based in London? 16 agencies in our directory combine verified project-based client evidence with a London base. The current top-ranked are Pixelette Technologies, Datatonic, Fast Data Science — ordered by depth of documented client evidence, then our editorial scoring (portfolio quality, credibility, completeness); placement is never paid. ### How much does an AI agency cost in London? Published rates across this page's agencies run €20–260 per hour (median ~€108). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size. ### How is the project-based model verified? Every agency here documents project-based work on its own site or in a published case study, describing the engagement structure rather than a service-list claim. We never infer the model from portfolio tone, so this list only contains agencies that operate project-based engagements deliberately. ### Can these agencies embed consultants with our team? 4 of the agencies on this page document an embedded / team-extension working model. See the team-extension page for the full verified list, or check the engagement chips on individual profiles. --- Source: AIAgencies.eu — the curated register of European AI agencies. Rate provenance: "agency-confirmed" = disclosed via submission or claimed profile; "directory-listed" = Clutch or two agreeing B2B directories (lone unverified sources are never written). Full method: https://www.aiagencies.eu/methodology · Rate index: https://www.aiagencies.eu/rates