Best AI Agent Development Companies in Europe

Vstorm vs Capgemini: full comparison for 2026

Last updated: August 2026

Quick verdict

Vstorm (4.6/5) edges ahead of Capgemini (4.1/5) overall. Vstorm is the better choice for eU mid-market buyers wanting a consultancy whose entire practice is agentic AI, with public EU AI Act commentary from its own founders.. Capgemini is the stronger option for large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform.. The right choice depends on your project size, budget, and required tech stack.

Vstorm vs Capgemini: head-to-head summary

Criterion Vstorm Capgemini
Founded 2017 1967
HQ Wrocław, Poland Paris, France
Team size 11–50 400,000+
Rating 4.6 / 5 4.1 / 5
Best for EU mid-market buyers wanting a consultancy whose entire practice is agentic AI, with public EU AI Act commentary from its own founders. Large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform.
Pricing model Fixed project, dedicated team Retainer, dedicated team, time & materials
Min. engagement Not published Not published (typically six- to seven-figure enterprise programs)
Primary tech stack Python, LangChain, LangGraph Python, OpenAI, Azure AI
Industries served Technology & SaaS, Financial Services, Retail & E-commerce Financial Services, Manufacturing, Healthcare, Government & Public Sector, Technology & SaaS

Vstorm vs Capgemini: overview

Vstorm

Vstorm is a Wrocław, Poland-based boutique founded in October 2017 by CEO Antoni Kozelski and VP Bartosz Gonczarek, with a compact team of 11–50 people, operating fully within the EU as an agentic AI engineering consultancy. It was the first AI consultancy accepted into the Agentic AI Foundation (AAIF) and publishes its own TriStorm delivery framework, with a public commitment to AGENTS.md documentation on every project. As a Polish company, it falls squarely under GDPR without any cross-border transfer questions for EU clients, and its founders speak and publish regularly on EU AI Act readiness specifically.

Capgemini

Capgemini was founded by Serge Kampf in Paris, France on October 1, 1967, and now employs approximately 423,400 people worldwide, making it one of the largest European-headquartered professional services firms in the world. Its RAISE™ (Reliable AI Solution Engineering) platform is a modular accelerator for building, integrating, and operating agentic AI at scale with multi-cloud integration and full lifecycle management. As a French SE (Societas Europaea), its EU headquarters gives buyers a European legal entity for contracting, even though its global delivery network spans far beyond Europe.

Services and capabilities: Vstorm vs Capgemini

Capability Vstorm Capgemini
Multi-agent orchestration
RAG / knowledge integration
Workflow & systems integration
Coding agents
Monitoring & anomaly detection
Customer-facing agents

Tech stack comparison: Vstorm vs Capgemini

Framework / platform Vstorm Capgemini
LangChain
LangGraph N/A
AutoGen N/A N/A
LlamaIndex N/A N/A
OpenAI
Anthropic Claude N/A
Pinecone N/A N/A
AWS
Azure N/A
Kubernetes N/A

Pricing comparison: Vstorm vs Capgemini

Criterion Vstorm Capgemini
Minimum engagement Not published Not published (typically six- to seven-figure enterprise programs)
Engagement models Fixed project, Dedicated team Retainer, Dedicated team, Time & materials
Rate transparency Minimum disclosed Minimum disclosed
Price tier Mid-market Mid-market

Target audience comparison: Vstorm vs Capgemini

Dimension Vstorm Capgemini
Best company size Startup to mid-market Startup to mid-market
Best industries Technology & SaaS, Financial Services, Retail & E-commerce Financial Services, Manufacturing, Healthcare
Best use cases EU buyers wanting a vendor whose entire business is agentic AI, fully within EU jurisdiction, Teams wanting standardized AGENTS.md documentation baked into delivery for future maintainability Large European enterprises wanting agentic AI from a French-headquartered global systems integrator, Vendor-consolidation programs wanting a named platform (RAISE) plus implementation under one contract
Typical project type Fixed project Retainer

Vstorm vs Capgemini: pros and cons

Vstorm
+ First AI consultancy formally accepted into the Agentic AI Foundation, an independently verifiable credential
+ Fully EU-domiciled (Poland), avoiding cross-border transfer complexity for European clients
+ Named proprietary delivery framework (TriStorm) gives buyers a concrete methodology to evaluate
+ Founders publish specifically on EU AI Act readiness, not just generic AI commentary
- 11–50 person team caps capacity for large or highly parallel programs
- Founded relatively recently (October 2017) relative to some longer-tenured European competitors on this list
- Minimum engagement figures are not published, requiring direct sales contact for early budgeting
Capgemini
+ Paris-headquartered European legal entity (Societas Europaea) simplifies EU contracting
+ Named, productized agentic AI platform (RAISE) with full lifecycle management, not just consulting
+ ~423,400 employees globally gives unmatched bench depth for large multi-country programs
+ Nearly six decades of operating history (founded 1967) with public-company financial transparency
- Delivery network extends far beyond Europe, so specific project staffing location needs separate confirmation
- Standard enterprise contracting and procurement cycles run considerably longer than a boutique vendor's
- Buyers get a broad consulting team rather than the named-architect continuity smaller firms offer

Who should choose Vstorm?

Vstorm is the right choice for eU mid-market buyers wanting a consultancy whose entire practice is agentic AI, with public EU AI Act commentary from its own founders..

First AI consultancy accepted into the Agentic AI Foundation, EU-domiciled, with founders who publish specifically on EU AI Act readiness.. Minimum engagement starts at Not published. Works best with clients in Technology & SaaS, Financial Services, Retail & E-commerce.

Who should choose Capgemini?

Capgemini is the right choice for large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform..

Europe's largest IT services company by headquarters, with a named modular agentic AI platform (RAISE) offering full lifecycle management.. Minimum engagement starts at Not published (typically six- to seven-figure enterprise programs). Works best with clients in Financial Services, Manufacturing, Healthcare, Government & Public Sector, Technology & SaaS.

Decision matrix: Vstorm vs Capgemini

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Vstorm
You need a large dedicated team for an ongoing programme Vstorm
Your budget is at the lower end Compare: Vstorm (Not published) vs Capgemini (Not published (typically six- to seven-figure enterprise programs))
You need specialist depth in a specific vertical Capgemini
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Both may offer discovery engagements

Use case fit: Vstorm vs Capgemini

Use case Vstorm fit Capgemini fit Winner
EU buyers wanting a vendor whose entire business is agentic AI, fully within EU jurisdiction Strong Strong Both equally
Teams wanting standardized AGENTS.md documentation baked into delivery for future maintainability Strong Limited Vstorm
Large European enterprises wanting agentic AI from a French-headquartered global systems integrator Limited Strong Capgemini
Vendor-consolidation programs wanting a named platform (RAISE) plus implementation under one contract Limited Strong Capgemini
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: Vstorm vs Capgemini

Vstorm (4.6/5) is the stronger overall choice for most AI Agent Development projects. First AI consultancy accepted into the Agentic AI Foundation, EU-domiciled, with founders who publish specifically on EU AI Act readiness.. It is best for eU mid-market buyers wanting a consultancy whose entire practice is agentic AI, with public EU AI Act commentary from its own founders..

Capgemini (4.1/5) is the better choice when large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform.. If your situation matches those criteria, Capgemini is a competitive option.

Related comparisons

Vstorm vs Capgemini FAQ

Is Vstorm better than Capgemini?

Vstorm (4.6/5) scores higher overall, but "better" depends on your use case. Vstorm is better for eU mid-market buyers wanting a consultancy whose entire practice is agentic AI, with public EU AI Act commentary from its own founders.. Capgemini is better for large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform..

How do Vstorm and Capgemini differ in pricing?

Vstorm uses fixed project, dedicated team pricing with a minimum engagement of Not published. Capgemini uses retainer, dedicated team, time & materials pricing with a minimum engagement of Not published (typically six- to seven-figure enterprise programs). Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Vstorm or Capgemini?

Capgemini is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.

What are the main differences between Vstorm and Capgemini?

Vstorm's primary differentiator is: first ai consultancy accepted into the agentic ai foundation, eu-domiciled, with founders who publish specifically on eu ai act readiness.. Capgemini's primary differentiator is: europe's largest it services company by headquarters, with a named modular agentic ai platform (raise) offering full lifecycle management.. They also differ in team size (11–50 vs 400,000+), minimum engagement (Not published vs Not published (typically six- to seven-figure enterprise programs)), and primary industries served (Technology & SaaS, Financial Services vs Financial Services, Manufacturing).

Last reviewed: August 2026. Verify all details directly with each company before making a decision.