# Best Public Sector AI Agencies in the UK

> 10 agencies. Top-ranked: Faculty, Fast Data Science, Kainos.

Canonical page: https://www.aiagencies.eu/industries/public-sector/uk
Generated: 2026-09-28 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold.

## Ranked roster
1. **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
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. **Kainos** — Belfast, United Kingdom · rate not published · team 1000+ · founded 1986 · services: AI Development, Generative AI, AI Consulting · 6 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/kainos
4. **Transparity** — London, United Kingdom · €85-130/hr (directory-listed) · team 250+ · founded 2015 · services: AI Consulting, AI Development, AI Automation, AI Agents · 8 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/transparity
5. **Analytics Engines** — Belfast, United Kingdom · €45-85/hr (directory-listed) · team 10-49 · founded 2008 · services: AI Consulting, AI Development · 6 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/analytics-engines
6. **Wolf Logic** — Birmingham, United Kingdom · €45-85/hr (directory-listed) · team 2-9 · founded 2018 · services: AI Development, AI Consulting, AI Agents · 4 documented client engagements with source URLs · reviewed 2026-09-10 · https://www.aiagencies.eu/agency/wolf-logic
7. **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
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. **Catalyst Marketing Agency** — Birmingham, United Kingdom · rate not published · team 10-49 · founded 2012 · services: AI SEO, AI Marketing · 1 documented client engagement with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/catalyst-marketing-agency
10. **Contra Agency** — London, United Kingdom · €130-170/hr (directory-listed) · team 10-49 · founded 2000 · services: AI SEO · 1 documented client engagement with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/contra-agency


## About this market
Frameworks decide who gets to bid for UK public-sector AI work, and this roster mixes two supplier types that should not share a shortlist. The builders come first. Mercury Labs is an approved supplier on the Crown Commercial Service AI framework and works from discovery through production. Faculty AI's published work includes the NHS AI Lab's model-validation process, and its work index spans defense, energy, insurance and government. Kainos has delivered government digital services from Belfast since 1986 at a thousand-plus staff, Analytics Engines is a Queen's University spin-out with public-sector and research clients, Nebuli builds generative workspaces and responsible-AI tooling for public bodies, Fast Data Science does language and predictive modeling for health and research institutions, Transparity brings Microsoft platform delivery through Azure AI Foundry, and Wolf Logic works public clients from the West Midlands. The second type is communications: Contra Agency's one published AI engagement is answer engine optimization for a law firm, and Catalyst Marketing Agency's is search and lead generation. Both are credible at what they publish; neither publishes model-building work.

Government buyers carry a documentation burden private clients never see, and the framework route rewards suppliers who have already produced it. Ask for the handover package from a past public engagement—model documentation, evaluation records, runbooks, the human-oversight arrangement—and ask what the department could operate afterward without the supplier. That single question sorts this page reliably. Published bands run €45-260 an hour, but framework and tender pricing rarely resembles a published hourly rate, so treat those figures as an ordering signal rather than a quote.

## Questions buyers ask

### How much do Public Sector AI agencies in the UK charge?
Of the 10 Public Sector AI agencies on this page, 6 publish complete hourly rate ranges. They range from €45 to €260, with a median around €108. Across the register, rated agencies in the UK bill €65–110/hr (27 rated). 2 agencies operate under €100/hr: Analytics Engines, Wolf Logic.

### Which are the top-rated Public Sector AI agencies in the UK?
Based on our editorial scoring (portfolio quality, business credibility, and case study depth), the top-ranked Public Sector AI agencies in the UK are Faculty, Fast Data Science, Kainos. See the full review on each agency's profile.

### What other industries do UK Public Sector agencies serve?
Beyond Public Sector, the most common cross-industry experience among these agencies is Healthcare (8 of 10 agencies). Notable examples include Faculty, Fast Data Science, Kainos.

### How recent are these Public Sector AI agency reviews?
All 10 agencies on this page were editorially reviewed between Aug 4, 2026 and Sep 23, 2026 — the most recent being Mercury Labs. See our review methodology for how scores are calculated.

### What's the smallest team size available for public sector in the UK?
Fast Data Science, Wolf Logic, Nebuli are the boutique studios (under 10 people) on this page, ideal for projects needing senior-level attention without large-team overhead.

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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