Vstorm vs B12 Consulting: full comparison for 2026
Last updated: August 2026
Quick verdict
Vstorm (4.6/5) edges ahead of B12 Consulting (3.6/5) 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.. 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.
Vstorm vs B12 Consulting: head-to-head summary
| Criterion | Vstorm | B12 Consulting |
|---|---|---|
| Founded | 2017 | 2012 |
| HQ | Wrocław, Poland | Louvain-la-Neuve, Belgium |
| Team size | 11–50 | 11–50 |
| Rating | 4.6 / 5 | 3.6 / 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. | EU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers. |
| Pricing model | Fixed project, dedicated team | Fixed project, staff augmentation |
| Min. engagement | Not published | Not published |
| Primary tech stack | Python, LangChain, LangGraph | Python, LangChain, AWS |
| Industries served | Technology & SaaS, Financial Services, Retail & E-commerce | Manufacturing, Technology & SaaS |
Vstorm vs B12 Consulting: 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.
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: Vstorm vs B12 Consulting
| Capability | Vstorm | B12 Consulting |
|---|---|---|
| Multi-agent orchestration | ✓ | ✗ |
| RAG / knowledge integration | ✓ | ✗ |
| Workflow & systems integration | ✗ | ✓ |
| Coding agents | ✗ | ✗ |
| Monitoring & anomaly detection | ✗ | ✗ |
| Customer-facing agents | ✗ | ✗ |
Tech stack comparison: Vstorm vs B12 Consulting
| Framework / platform | Vstorm | B12 Consulting |
|---|---|---|
| LangChain | ✓ | ✓ |
| LangGraph | ✓ | N/A |
| AutoGen | N/A | N/A |
| LlamaIndex | N/A | N/A |
| OpenAI | ✓ | N/A |
| Anthropic Claude | ✓ | N/A |
| Pinecone | N/A | N/A |
| AWS | ✓ | ✓ |
| Azure | N/A | N/A |
| Kubernetes | N/A | N/A |
Pricing comparison: Vstorm vs B12 Consulting
| Criterion | Vstorm | B12 Consulting |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Fixed project, Dedicated team | Fixed project, Staff augmentation |
| Rate transparency | Minimum disclosed | Minimum disclosed |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Vstorm vs B12 Consulting
| Dimension | Vstorm | B12 Consulting |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Technology & SaaS, Financial Services, Retail & E-commerce | Manufacturing, Technology & SaaS |
| 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 | 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 | Fixed project | Fixed project |
Vstorm vs B12 Consulting: 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 |
| 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 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 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: Vstorm vs B12 Consulting
| 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 B12 Consulting (Not published) |
| You need specialist depth in a specific vertical | Vstorm |
| 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 B12 Consulting
| Use case | Vstorm fit | B12 Consulting 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 |
| 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: Vstorm vs B12 Consulting
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..
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
Vstorm vs B12 Consulting FAQ
Is Vstorm better than B12 Consulting?
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.. B12 Consulting is better for eU buyers wanting a small, deeply technical Belgian consultancy founded by physics researchers..
How do Vstorm and B12 Consulting differ in pricing?
Vstorm uses fixed project, dedicated team pricing with a minimum engagement of Not published. 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: Vstorm or B12 Consulting?
Vstorm 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 B12 Consulting?
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.. 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 (11–50 vs 11–50), minimum engagement (Not published vs Not published), and primary industries served (Technology & SaaS, Financial Services vs Manufacturing, Technology & SaaS).
Last reviewed: August 2026. Verify all details directly with each company before making a decision.