# Best Generative AI Agencies in London > 15 agencies. Top-ranked: Datatonic, Faculty, Imobisoft. Canonical page: https://www.aiagencies.eu/services/generative-ai/london Generated: 2026-09-17 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold. ## Ranked roster 1. **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 2. **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 3. **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 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. **Elsewhen** — London, United Kingdom · rate not published · team 50-249 · founded 2011 · services: AI Development, AI Consulting, Generative AI · 2 documented client engagements with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/elsewhen 6. **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 7. **Tom & Co** — London, United Kingdom · rate not published · team 50-249 · services: AI Development, AI Automation, Generative AI · 4 documented client engagements with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/tom-and-co 8. **iCentric Agency** — London, United Kingdom · €85-130/hr (directory-listed) · team 10-49 · founded 2002 · services: AI Development, AI Consulting, AI Automation, Generative AI · 2 documented client engagements with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/icentric-agency 9. **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 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. **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 12. **Mercury Labs** — London, United Kingdom · €85-130/hr (directory-listed) · team 10-49 · founded 2018 · services: AI Consulting, AI Development, Generative AI · https://www.aiagencies.eu/agency/mercury-labs 13. **N-iX** — London, United Kingdom · €45-85/hr (directory-listed) · team 1000+ · founded 2002 · services: AI Consulting, AI Development, Generative AI, AI Agents · https://www.aiagencies.eu/agency/n-ix 14. **Opinov8** — London, United Kingdom · €45-85/hr (directory-listed) · team 250+ · founded 2017 · services: AI Consulting, AI Development, AI Agents, Generative AI · https://www.aiagencies.eu/agency/opinov8 15. **Pixelette Technologies** — London, United Kingdom · €20-40/hr (directory-listed) · team 250+ · founded 2018 · services: AI Development, AI Agents, AI Consulting, Generative AI · https://www.aiagencies.eu/agency/pixelette-technologies ## 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 ## About this market Generative AI is the category where the gap between a demo and a deployment is widest, so the useful question in London is what an agency has put in front of real users. The six listed here can answer it: Faculty built AgentAssist and MemberSummarise into Tide's live support operation on Amazon Bedrock, with a published 10% cut in ticket handling time; Neurons Lab shipped Visa a 20-language LLM content system in under two months and holds AWS's Generative AI competency; The AI Consultancy built MoverAI on Google Gemini, running deterministically at temperature zero because the output has to be quote-grade; Tom & Co generate lifestyle imagery across LeMieux's 10,000-SKU catalog at roughly a tenth of photography cost, with every image queued for human approval; Elsewhen and iCentric both ship generative features inside larger platform work. The page has since widened: Datatonic publishes generative work for Vodafone and a Gemini migration for LocalSearch, Kortical and Mercury Labs build retrieval and LLM systems into regulated operations, Nebuli deployed a private generative workspace for the UK Sports Institute, and Ekimetrics applies generative AI to climate-risk assessment. The firms above that published their stack rather than describing it as proprietary are the ones whose systems are easiest to verify, which is the fastest available signal that something exists. Ask what happens when the model is wrong—a serious generative-AI team has an answer involving guardrails, evaluation and a human in the loop, not a better prompt. ## Questions buyers ask ### How much do Generative AI agencies in London charge? Of the 15 Generative AI agencies on this page, 7 publish complete hourly rate ranges. They range from €20 to €130, with a median around €65. Across the register, rated agencies in London bill €65–110/hr (19 rated). 7 agencies operate under €100/hr: Imobisoft, Kortical, iCentric Agency, Mercury Labs. ### Which are the top-rated Generative AI agencies in London? Based on our editorial scoring (portfolio quality, business credibility, and case study depth), the top-ranked Generative AI agencies in London are Datatonic, Faculty, Imobisoft. See the full review on each agency's profile. ### Are there London Generative AI agencies specializing in FinTech? Yes — 10 agencies on this page list FinTech experience. Top examples include Datatonic, Faculty, Kortical. ### How recent are these Generative AI agency reviews? 11 of the 15 agencies on this page have been editorially reviewed between Aug 4, 2026 and Sep 7, 2026 — the most recent being Nebuli. See our review methodology for how scores are calculated. ### What's the smallest team size available for generative ai in London? Kortical, Nebuli are the boutique studios (under 10 people) on this page, ideal for projects needing senior-level attention without large-team overhead. --- 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