# Best Generative AI Agencies for Mid-Market Firms

> 7 agencies. Top-ranked: Square Root Solutions, Storm Technology, Wolfgang Digital.

Canonical page: https://www.aiagencies.eu/services/generative-ai/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. **Wolfgang Digital** — Dublin, Ireland · rate not published · team 50-249 · founded 2007 · services: AI SEO, AI Consulting, Generative AI · 8 documented client engagements with source URLs · reviewed 2026-09-16 · https://www.aiagencies.eu/agency/wolfgang-digital
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. **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
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. **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


## About this market
In the work documented here, generative AI for mid-market companies is assistants over a company's own documents and text generation inside existing systems; the main variable is whose model runs where. Nebuli deploys its own Nano Workspace and AIQ models on private cloud, as at the UK Sports Institute: documents preprocessed into a private vector database behind a smart-search API. Contiamo runs on GPT-4o: a customer chatbot on Stadtwerke Bonn's website for over a year, employee chatbots across housing group Gewobag, and the Product Text Wizard generating multilingual product descriptions for BRAX from its ERP and PIM, with no case-study page stating architecture or evaluation. Kortical's Shopify support chatbot for The Edit LDN reportedly handles 80% of queries unaided. Square Root's EduSmart Planner generates lesson plans from curriculum PDFs through Eden AI and ChatGPT at 250-plus schools. Flowtale's Flowform extracts booking requests into LEMAN's transport management system, cutting handling from up to 15 minutes to just over six, the extraction model unnamed. Wolfgang Digital used custom GPTs to theme Petstop's Trustpilot reviews into ad messaging, and Storm Technology's generative offer is Copilot advisory without a published client delivery.

The sorting question is where your data goes and who holds the model. Ask whether the assistant runs on a public API, a private deployment or the agency's own stack, the error rate on your document types, and who supports it afterward: Nebuli's registered headcount is 2-9, and Contiamo calls the BRAX tool continuously developed, so ask whether that means a retainer.

## Questions buyers ask

### How many AI agencies work with mid-market on generative ai?
7 agencies in our directory combine verified mid-market client evidence with documented Generative AI work. The current top-ranked are Square Root Solutions, Storm Technology, Wolfgang Digital — 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 generative ai?
Published rates across this page's agencies run €20–130 per hour (median ~€30). 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.

---
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