# Best AI Development Agencies for Mid-Market Firms

> 22 agencies. Top-ranked: Square Root Solutions, Storm Technology, Vention.

Canonical page: https://www.aiagencies.eu/services/ai-development/for/mid-market
Generated: 2026-09-28 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold.

## Ranked roster
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. **Storm Technology** — Dublin, Ireland · rate not published · team 50-249 · founded 1995 · services: AI Consulting, Generative AI, AI Development · 8 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/storm-technology
3. **Vention** — London, United Kingdom · €45-85/hr (directory-listed) · team 1000+ · founded 2002 · services: AI Development, AI Consulting, AI Agents · 10 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/vention
4. **b.telligent** — Munich, Germany · rate not published · team 250+ · founded 2005 · services: AI Consulting, AI Development · 9 documented client engagements with source URLs · reviewed 2026-09-20 · https://www.aiagencies.eu/agency/b-telligent
5. **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
6. **elunic** — Munich, Germany · rate not published · team 10-49 · founded 2013 · services: AI Development, AI Consulting, AI Agents · 6 documented client engagements with source URLs · reviewed 2026-09-20 · https://www.aiagencies.eu/agency/elunic
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. **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
9. **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
10. **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
11. **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
12. **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
13. **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
14. **Contiamo** — Berlin, Germany · rate not published · team 10-49 · founded 2012 · services: AI Consulting, AI Development, Generative AI · 6 documented client engagements with source URLs · reviewed 2026-09-24 · https://www.aiagencies.eu/agency/contiamo
15. **Datamole** — Prague, Czech Republic · rate not published · team 50-249 · founded 2015 · services: AI Development, AI Consulting, AI Automation · 4 documented client engagements with source URLs · reviewed 2026-09-20 · https://www.aiagencies.eu/agency/datamole
16. **Wise Monks** — Vilnius, Lithuania · €45-85/hr (directory-listed) · team 10-49 · founded 2008 · services: AI Development, AI Automation, AI Agents, AI Consulting · 4 documented client engagements with source URLs · reviewed 2026-09-08 · https://www.aiagencies.eu/agency/wise-monks
17. **Datahouse** — Zurich, Switzerland · rate not published · team 10-49 · founded 2005 · services: AI Development, AI Consulting · 3 documented client engagements with source URLs · reviewed 2026-08-07 · https://www.aiagencies.eu/agency/datahouse
18. **Grepton** — Budapest, Hungary · rate not published · team 50-249 · founded 2001 · 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/grepton
19. **Dmlab** — Budapest, Hungary · rate not published · team 10-49 · founded 2007 · services: AI Consulting, AI Development · 2 documented client engagements with source URLs · reviewed 2026-09-09 · https://www.aiagencies.eu/agency/dmlab
20. **Syllotips** — Rome, Italy · rate not published · team 10-49 · founded 2022 · services: AI Agents, AI Development, AI Consulting · 2 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/syllotips
21. **NextAI** — Valencia, Spain · €70-150/hr (agency-confirmed) · team 10-49 · founded 2022 · services: AI Consulting, AI Automation, AI Agents, AI Development · 5 documented client engagements with source URLs · reviewed 2026-09-27 · https://www.aiagencies.eu/agency/nextai
22. **Navique** — Zurich, Switzerland · rate not published · team 10-49 · founded 2013 · services: AI Development, AI Consulting · 2 documented client engagements with source URLs · reviewed 2026-08-07 · https://www.aiagencies.eu/agency/navique

## 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):
- Spanish Point Technologies vs Square Root Solutions: https://www.aiagencies.eu/compare/spanish-point-technologies-vs-square-root-solutions

## About this market
Development on this page ranges from training a model on the client's own data to wiring a hosted API into a product. Square Root Solutions shows the split inside one portfolio: its Druid Learning platform is model engineering, with transformer classifiers and spaCy entity recognition labeling assets across 140-plus languages on Airflow and Kafka, while its EduSmart Planner for CJ Fallon calls Eden AI and ChatGPT. b.telligent fine-tuned BERT on CSS Insurance's manually labeled history to categorize around 60,000 feedbacks a year in four languages, and built KUKA's sales assistant on GPT-4o. Kortical's Deloitte build took a tax computation from five hours to six minutes at above 90% accuracy, and its NHS Blood and Transplant forecasting across 40 blood products is reported at a 54% reduction in expiries. elunic's inspection cells at voestalpine retrain continuously on live line images. Flowtale's Ekstra Bladet write-up benchmarks gradient boosting, random forest and support vector machines and publishes the accuracies, a 48% on one class among them. Storm Technology's documented client work is Dynamics 365 and Power Platform delivery with AI as an advisory offer, and Vention's client studies show little model-building.

A mid-market buyer should price the build by which kind it is, because the skills, the timeline and the running cost differ. Ask which named engagement resembles yours, whether the model was trained or called, where it runs, and what evaluation set was left behind so your own team can tell when it degrades.

## Questions buyers ask

### How many AI agencies work with mid-market on ai development?
22 agencies in our directory combine verified mid-market client evidence with documented AI Development work. The current top-ranked are Square Root Solutions, Storm Technology, Vention — 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 ai development?
Published rates across this page's agencies run €20–150 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 mid-market experience verified on this page?
Each listed agency has at least two documented, named mid-market 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.

### 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.

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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