Capgemini vs B12 Consulting: full comparison for 2026
Last updated: August 2026
Quick verdict
Capgemini (4.1/5) edges ahead of B12 Consulting (3.6/5) overall. Capgemini is the better choice for large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform.. B12 Consulting is the stronger option for eU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers.. The right choice depends on your project size, budget, and required tech stack.
Capgemini vs B12 Consulting: head-to-head summary
| Criterion | Capgemini | B12 Consulting |
|---|---|---|
| Founded | 1967 | 2012 |
| HQ | Paris, France | Louvain-la-Neuve, Belgium |
| Team size | 400,000+ | 11–50 |
| Rating | 4.1 / 5 | 3.6 / 5 |
| Best for | Large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform. | EU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers. |
| Pricing model | Retainer, dedicated team, time & materials | Fixed project, staff augmentation |
| Min. engagement | Not published (typically six- to seven-figure enterprise programs) | Not published |
| Primary tech stack | Python, OpenAI, Azure AI | Python, LangChain, AWS |
| Industries served | Financial Services, Manufacturing, Healthcare, Government & Public Sector, Technology & SaaS | Manufacturing, Technology & SaaS |
Capgemini vs B12 Consulting: overview
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.
B12 Consulting
B12 Consulting was founded in 2012 by a group of PhDs in Physics sharing a passion for complex problem solving, headquartered in Louvain-la-Neuve, Belgium with an additional Brussels presence, and roughly 35 FTE. It is a services company expert in artificial intelligence, data science, and custom software development, with a technical, research-adjacent culture reflecting its founders' academic backgrounds. As a Belgian EU entity, it offers full EU data residency at a compact, deeply technical headcount.
Services and capabilities: Capgemini vs B12 Consulting
| Capability | Capgemini | B12 Consulting |
|---|---|---|
| Multi-agent orchestration | ✓ | ✗ |
| RAG / knowledge integration | ✗ | ✗ |
| Workflow & systems integration | ✓ | ✓ |
| Coding agents | ✗ | ✗ |
| Monitoring & anomaly detection | ✓ | ✗ |
| Customer-facing agents | ✗ | ✗ |
Tech stack comparison: Capgemini vs B12 Consulting
| Framework / platform | Capgemini | B12 Consulting |
|---|---|---|
| LangChain | ✓ | ✓ |
| LangGraph | N/A | N/A |
| AutoGen | N/A | N/A |
| LlamaIndex | N/A | N/A |
| OpenAI | ✓ | N/A |
| Anthropic Claude | N/A | N/A |
| Pinecone | N/A | N/A |
| AWS | ✓ | ✓ |
| Azure | ✓ | N/A |
| Kubernetes | ✓ | N/A |
Pricing comparison: Capgemini vs B12 Consulting
| Criterion | Capgemini | B12 Consulting |
|---|---|---|
| Minimum engagement | Not published (typically six- to seven-figure enterprise programs) | Not published |
| Engagement models | Retainer, Dedicated team, Time & materials | Fixed project, Staff augmentation |
| Rate transparency | Minimum disclosed | Minimum disclosed |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Capgemini vs B12 Consulting
| Dimension | Capgemini | B12 Consulting |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Financial Services, Manufacturing, Healthcare | Manufacturing, Technology & SaaS |
| Best use cases | 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 | EU buyers wanting a small, technically rigorous Belgian consultancy for a well-scoped project, Complex data-science-adjacent agentic AI problems suited to a research-oriented team |
| Typical project type | Retainer | Fixed project |
Capgemini vs B12 Consulting: pros and cons
| 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 |
| B12 Consulting | |
|---|---|
| + | Fully EU-domiciled (Belgium), simplifying GDPR compliance for European buyers |
| + | Founded by PhDs in Physics, giving it an unusually research-adjacent technical culture |
| + | Over a decade of continuous operating history since 2012 |
| + | Brussels presence alongside Louvain-la-Neuve headquarters gives access to EU institutional buyers |
| - | Very small team (~35 FTE) caps capacity for large or highly parallel programs |
| - | Minimum engagement figures are not published, requiring direct sales contact for early budgeting |
| - | Fewer named large-enterprise case studies than other boutiques on this list |
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.
Who should choose B12 Consulting?
B12 Consulting is the right choice for eU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers..
Founded by PhDs in Physics, giving it a research-adjacent, deeply technical culture uncommon among the boutiques on this list.. Minimum engagement starts at Not published. Works best with clients in Manufacturing, Technology & SaaS.
Decision matrix: Capgemini vs B12 Consulting
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | B12 Consulting |
| You need a large dedicated team for an ongoing programme | Capgemini |
| Your budget is at the lower end | Compare: Capgemini (Not published (typically six- to seven-figure enterprise programs)) vs B12 Consulting (Not published) |
| 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: Capgemini vs B12 Consulting
| Use case | Capgemini fit | B12 Consulting fit | Winner |
|---|---|---|---|
| Large European enterprises wanting agentic AI from a French-headquartered global systems integrator | Strong | Limited | Capgemini |
| Vendor-consolidation programs wanting a named platform (RAISE) plus implementation under one contract | Strong | Limited | Capgemini |
| EU buyers wanting a small, technically rigorous Belgian consultancy for a well-scoped project | Strong | Strong | Both equally |
| Complex data-science-adjacent agentic AI problems suited to a research-oriented team | Limited | Strong | B12 Consulting |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Limited | Both equally |
Verdict: Capgemini vs B12 Consulting
Capgemini (4.1/5) is the stronger overall choice for most AI Agent Development projects. Europe's largest IT services company by headquarters, with a named modular agentic AI platform (RAISE) offering full lifecycle management.. It is best for large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform..
B12 Consulting (3.6/5) is the better choice when eU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers.. If your situation matches those criteria, B12 Consulting is a competitive option.
Related comparisons
Capgemini vs B12 Consulting FAQ
Is Capgemini better than B12 Consulting?
Capgemini (4.1/5) scores higher overall, but "better" depends on your use case. Capgemini is better for large European enterprises wanting agentic AI from a European-headquartered global systems integrator with a named platform.. B12 Consulting is better for eU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers..
How do Capgemini and B12 Consulting differ in pricing?
Capgemini uses retainer, dedicated team, time & materials pricing with a minimum engagement of Not published (typically six- to seven-figure enterprise programs). B12 Consulting uses fixed project, staff augmentation pricing with a minimum engagement of Not published. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Capgemini or B12 Consulting?
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 Capgemini and B12 Consulting?
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.. B12 Consulting's primary differentiator is: founded by phds in physics, giving it a research-adjacent, deeply technical culture uncommon among the boutiques on this list.. They also differ in team size (400,000+ vs 11–50), minimum engagement (Not published (typically six- to seven-figure enterprise programs) vs Not published), and primary industries served (Financial Services, Manufacturing vs Manufacturing, Technology & SaaS).
Last reviewed: August 2026. Verify all details directly with each company before making a decision.