# Best SaaS & B2B AI Agencies for B2B Companies

> 52 agencies. Top-ranked: Square Root Solutions, DataNorth AI, Cloud District.

Canonical page: https://www.aiagencies.eu/industries/saas/for/b2b
Generated: 2026-09-20 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold.

## Ranked roster
Top 30 of 52 agencies on this page.

1. **Square Root Solutions** — Dublin, Ireland · €20-40/hr (directory-listed) · team 10-49 · founded 2018 · services: AI Development, Generative AI · 10 documented client engagements with source URLs · reviewed 2026-09-16 · https://www.aiagencies.eu/agency/square-root-solutions
2. **DataNorth AI** — Groningen, Netherlands · €150/hr · team 10-49 · founded 2022 · services: AI Consulting, AI Development, AI Automation, Generative AI · 9 documented client engagements with source URLs · reviewed 2026-08-05 · https://www.aiagencies.eu/agency/datanorth
3. **Cloud District** — Madrid, Spain · €45-85/hr (directory-listed) · team 50-249 · founded 2010 · services: AI Development, AI Consulting · 11 documented client engagements with source URLs · reviewed 2026-09-20 · https://www.aiagencies.eu/agency/cloud-district
4. **Dashbouquet** — Tallinn, Estonia · €45-85/hr (directory-listed) · team 50-249 · founded 2014 · services: AI Development, Generative AI, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/dashbouquet
5. **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
6. **Lautmaler** — Berlin, Germany · rate not published · team 10-49 · services: AI Consulting, AI Development, Generative AI · 8 documented client engagements with source URLs · reviewed 2026-08-05 · https://www.aiagencies.eu/agency/lautmaler
7. **Merixstudio** — Poznań, Poland · €45-85/hr (directory-listed) · team 50-249 · founded 1999 · services: AI Development, AI Consulting, AI Automation, AI Agents · 8 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/merixstudio
8. **Shift Agency** — Frankfurt, Germany · rate not published · team 10-49 · founded 1997 · services: Generative AI, AI Consulting, AI Development · 8 documented client engagements with source URLs · reviewed 2026-09-16 · https://www.aiagencies.eu/agency/shift-agency
9. **Hybrid Heroes** — Berlin, Germany · €85-130/hr (directory-listed) · team 10-49 · founded 2015 · services: AI Consulting, AI Development, Generative AI, AI Agents · 7 documented client engagements with source URLs · reviewed 2026-08-05 · https://www.aiagencies.eu/agency/hybrid-heroes
10. **Phenomenon Studio** — Tallinn, Estonia · €45-85/hr (directory-listed) · team 50-249 · founded 2019 · services: AI Development, AI Consulting · 7 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/phenomenon-studio
11. **Vstorm** — Wrocław, Poland · €85-130/hr (directory-listed) · team 10-49 · founded 2017 · services: AI Consulting, AI Development, Generative AI, AI Agents · 8 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/vstorm
12. **Algorithma** — Stockholm, Sweden · rate not published · founded 2022 · services: AI Consulting, AI Development, AI Agents, AI Automation · 6 documented client engagements with source URLs · reviewed 2026-08-05 · https://www.aiagencies.eu/agency/algorithma
13. **Yield Studio** — Lyon, France · €85-130/hr (directory-listed) · team 50-249 · founded 2019 · services: AI Development, Generative AI, AI Agents · 6 documented client engagements with source URLs · reviewed 2026-09-04 · https://www.aiagencies.eu/agency/yield-studio
14. **Qubix Consulting** — Frankfurt, Germany · rate not published · team 10-49 · services: AI Consulting, AI Development · 6 documented client engagements with source URLs · reviewed 2026-09-16 · https://www.aiagencies.eu/agency/qubix-consulting
15. **Tooploox** — Wrocław, Poland · €45-85/hr (directory-listed) · team 50-249 · founded 2012 · services: AI Development, Generative AI, AI Consulting · 6 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/tooploox
16. **Upside Lab** — Kraków, Poland · €85-130/hr (directory-listed) · team 10-49 · founded 2017 · services: AI Consulting, AI Development, AI Automation · 6 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/upside-lab
17. **Crunch Analytics** — Ghent, Belgium · rate not published · team 10-49 · founded 2016 · services: AI Consulting, AI Development, AI Automation · 5 documented client engagements with source URLs · reviewed 2026-09-10 · https://www.aiagencies.eu/agency/crunch-analytics
18. **10Clouds** — Warsaw, Poland · €45-85/hr (directory-listed) · team 50-249 · founded 2009 · services: AI Agents, AI Development, Generative AI · 5 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/10clouds
19. **Geneea** — Prague, Czech Republic · rate not published · team 10-49 · founded 2014 · services: AI Development, AI Automation, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/geneea
20. **Flowtale** — Copenhagen, Denmark · €20-40/hr (directory-listed) · team 10-49 · founded 2018 · services: AI Development, Generative AI, AI Consulting · 8 documented client engagements with source URLs · reviewed 2026-09-20 · https://www.aiagencies.eu/agency/flowtale
21. **Indigo Labs** — Ljubljana, Slovenia · €45-85/hr (directory-listed) · team 10-49 · founded 2021 · services: AI Development, AI Automation, AI Agents · 5 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/indigo-labs
22. **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
23. **App4You** — Gdańsk, Poland · €45-85/hr (directory-listed) · team 2-9 · founded 2021 · services: AI Agents, AI Automation, AI Development, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-09 · https://www.aiagencies.eu/agency/app4you
24. **STX Next** — Poznań, Poland · €45-85/hr (directory-listed) · team 250+ · founded 2005 · services: AI Development, AI Consulting, AI Agents, AI Automation · 5 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/stx-next
25. **Buildo** — Milan, Italy · €85-130/hr (directory-listed) · team 10-49 · founded 2013 · services: AI Development, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/buildo
26. **Alpdev** — Ljubljana, Slovenia · €45-85/hr (directory-listed) · team 2-9 · founded 2025 · services: AI Development, AI Automation, AI Agents · 5 documented client engagements with source URLs · reviewed 2026-09-07 · https://www.aiagencies.eu/agency/alpdev
27. **Lizard Global** — Rotterdam, Netherlands · €45-85/hr (directory-listed) · team 50-249 · founded 2012 · services: AI Development, AI Automation, Generative AI · 5 documented client engagements with source URLs · reviewed 2026-09-04 · https://www.aiagencies.eu/agency/lizard-global
28. **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
29. **BySix** — Lisbon, Portugal · rate not published · team 50-249 · services: AI Agents, Generative AI, AI Consulting · 5 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/bysix
30. **Spanish Point Technologies** — Dublin, Ireland · rate not published · team 50-249 · founded 2005 · services: AI Development, AI Consulting · 4 documented client engagements with source URLs · reviewed 2026-09-16 · https://www.aiagencies.eu/agency/spanish-point-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):
- Alpdev vs Indigo Labs: https://www.aiagencies.eu/compare/alpdev-vs-indigo-labs
- Fast Data Science vs Vstorm: https://www.aiagencies.eu/compare/fast-data-science-vs-vstorm
- Spanish Point Technologies vs Square Root Solutions: https://www.aiagencies.eu/compare/spanish-point-technologies-vs-square-root-solutions

## About this market
When the client is a software company, AI delivery gets judged by product standards—latency, reliability, cost per request—because the system ships inside something other businesses pay for. The agencies here combine verified B2B evidence with software-industry work. Fuzzy Labs builds the MLOps layer that keeps models in production, in open-source infrastructure the client runs alone. Sputnik Digital shipped Invntry's image-identification system into an insurance product. Algorithma's agents serve operational software at volume, DataNorth pairs builds with team enablement, and Lautmaler, Hybrid Heroes, Violet AI and Ortom work the same territory.

Two screens matter most. Ownership: whose cloud account, who tunes the model quarter over quarter, what the client's engineers maintain unaided—a software company that cannot operate its own product feature has bought a dependency. And unit economics: a feature that works at demo volume and loses money at product volume is a prototype wearing production clothes. The documented engagements on this page answer both; make every candidate do the same before comparing rates.

## Questions buyers ask

### How many AI agencies work with B2B on saas & b2b?
52 agencies in our directory combine verified B2B client evidence with documented SaaS & B2B work. The current top-ranked are Square Root Solutions, DataNorth AI, Cloud District — 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 for saas & b2b?
Published rates across this page's agencies run €20–260 per hour (median ~€65). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size.

### How is B2B experience verified on this page?
Each listed agency has at least two documented, named B2B 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.

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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