# Best SaaS & B2B AI Agencies for AI Transformation

> 4 agencies. Top-ranked: Vstorm, N-iX, DEPT.

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

## Ranked roster
1. **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
2. **N-iX** — London, United Kingdom · €45-85/hr (directory-listed) · team 1000+ · founded 2002 · services: AI Consulting, AI Development, Generative AI, AI Agents · 4 documented client engagements with source URLs · reviewed 2026-09-23 · https://www.aiagencies.eu/agency/n-ix
3. **DEPT** — Amsterdam, Netherlands · €130-170/hr (directory-listed) · team 1000-9999 · founded 2016 · services: AI Development, AI Marketing, Generative AI · 3 documented client engagements with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/dept
4. **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


## About this market
For a software company a transformation program usually means putting agents inside the product and AI tooling inside the engineering organization, and the documented work here covers both. Vstorm's Synera engagement is the product side: a text-to-workflow agent running inside the client's software behind a validator that rejects illegal code before it reaches the interpreter, alongside Mixam's order agent at 10,000-plus daily users and about 100,000 orders a month. N-iX's APEX is the engineering side, a program for rolling AI coding tools into a client's development teams, with executives at WorkWave and First Student quoted by name and published baselines such as test coverage rising from 55 to 81 percent; the curator notes its 28 percent AI-generated-code figure comes from a 30-engineer pilot. NextAI's documented program is Sophia at Percent, a Spanish real-estate network rather than a software company, though Subvia, its second named client, runs as a super app on Base44 with agents across six channels and 85 percent of its operation automated by the project's own internal records.

Sort on what ships to your users and what you own afterward. For product agents ask what control sits between the model and the customer, and take Vstorm's validator and its published failure modes as the standard of disclosure to ask everyone for. For engineering programs ask for the baseline the improvement was measured against and how many engineers were in it. The curator notes that N-iX anonymizes nearly every case and its named production references are proofs of concept, that about half of Vstorm's portfolio is anonymized against a team page naming four people, and that NextAI's Subvia figures are internal records rather than audited outcomes, so ask each for a named reference in a software business before committing.

## Questions buyers ask

### How many AI agencies work with AI transformation on saas & b2b?
4 agencies in our directory combine verified AI transformation client evidence with documented SaaS & B2B work. The current top-ranked are Vstorm, N-iX, DEPT — 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 €45–170 per hour (median ~€109). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size.

### How is the AI transformation model verified?
Every agency here documents AI transformation work on its own site or in a published case study, describing the engagement structure rather than a service-list claim. We never infer the model from portfolio tone, so this list only contains agencies that operate AI transformation engagements deliberately.

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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