# Best AI Agencies for Enterprises in London > 9 agencies. Top-ranked: Datatonic, Fast Data Science, Kortical. Canonical page: https://www.aiagencies.eu/for/enterprise/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. **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 3. **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 4. **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 5. **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 6. **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 7. **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 8. **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 9. **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 ## 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 London's enterprise bench splits along a line that is easy to miss from outside it. One group came out of operations research and optimization: Satalia's routing and workforce systems, several of them running inside FTSE-scale clients for the better part of a decade, treat AI as a scheduling and allocation problem rather than a language one. Another builds on hyperscaler platforms. Datatonic's MLOps work runs on Vertex AI and its retrieval pipelines on Bedrock, Datasparq's recommendation and revenue-management systems sit on Google Cloud, and Faculty delivers across government and commercial estates. A narrower strand goes deeper on one problem each. Fast Data Science works unstructured-document NLP for pharma and regulators, Kortical sells a modeling platform alongside the people to run it, Nebuli hosts its own generative stack on private infrastructure, Neurons Lab builds for regulated financial environments, and Ekimetrics measures marketing spend rather than building systems. Read those groupings as different purchases. The first is bought when a physical or human resource is being allocated badly, the second when delivery needs standardizing across teams, the third when one specific document or measurement problem has already resisted a generalist. ## Questions buyers ask ### How many AI agencies work with enterprise in London? 9 agencies in our directory combine verified enterprise client evidence with a London base. The current top-ranked are Datatonic, Fast Data Science, Kortical — 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 €85–260 per hour (median ~€163). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size. ### How is enterprise experience verified on this page? Each listed agency has at least two documented, named enterprise clients — published case studies or engagement descriptions our research actually read, with source URLs stored per client. Logo walls without published evidence carry no weight, which is what separates this list from self-declared directories. --- 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