Best AI Agent Development Agencies

Tensorway vs B12 Consulting: full comparison for 2026

Last updated: August 2026

Quick verdict

Tensorway (4.5/5) edges ahead of B12 Consulting (3.7/5) overall. Tensorway is the better choice for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history.. B12 Consulting is the stronger option for buyers wanting a small, deeply technical Belgian agency founded by physics researchers.. The right choice depends on your project size, budget, and required tech stack.

Tensorway vs B12 Consulting: head-to-head summary

Criterion Tensorway B12 Consulting
Founded 2019 2012
HQ Alicante, Spain Louvain-la-Neuve, Belgium
Team size 50–249 11–50
Rating 4.5 / 5 3.7 / 5
Best for Smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history. Buyers wanting a small, deeply technical Belgian agency founded by physics researchers.
Pricing model Fixed project, dedicated team, retainer, time & materials, plus a discovery-first exploratory option Fixed project, staff augmentation
Min. engagement $10K (per company website; independently unverifiable) Not published
Primary tech stack Python, TypeScript, LangChain Python, LangChain, AWS
Industries served Healthcare, Financial Services, Retail & E-commerce, Manufacturing Manufacturing, Technology & SaaS

Tensorway vs B12 Consulting: overview

Tensorway

Tensorway is the AI-focused unit of an established Alicante, Spain software development company with roughly 25 years in the market, spun out specifically to build agentic systems at a team size (50–249 people) closer to an agency than a global systems integrator. Its six-phase delivery methodology takes a client from assessment to a working agentic MVP in roughly a month, with compliance embedded rather than bolted on, and a discovery-first exploratory track lets smaller buyers de-risk before committing to a full engagement. That agency-scale headcount, paired with a decades-old parent company, is an unusual combination on this list.

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 an agency expert in artificial intelligence, data science, and custom software development, with a technical, research-adjacent culture reflecting its founders' academic backgrounds.

Services and capabilities: Tensorway vs B12 Consulting

Capability Tensorway B12 Consulting
Multi-agent orchestration
RAG / knowledge integration
Workflow & systems integration
Coding agents
Monitoring & anomaly detection
Customer-facing agents

Tech stack comparison: Tensorway vs B12 Consulting

Framework / platform Tensorway B12 Consulting
LangChain
LangGraph N/A
AutoGen N/A
LlamaIndex N/A
OpenAI N/A N/A
Anthropic Claude N/A N/A
Pinecone N/A N/A
AWS
Azure N/A
Kubernetes N/A N/A

Pricing comparison: Tensorway vs B12 Consulting

Criterion Tensorway B12 Consulting
Minimum engagement $10K (per company website; independently unverifiable) Not published
Engagement models Fixed project, Dedicated team, Retainer, Time & materials, Discovery-first Fixed project, Staff augmentation
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Mid-market

Target audience comparison: Tensorway vs B12 Consulting

Dimension Tensorway B12 Consulting
Best company size Startup to mid-market Startup to mid-market
Best industries Healthcare, Financial Services, Retail & E-commerce Manufacturing, Technology & SaaS
Best use cases Smaller buyers wanting an agency-sized team with unusually deep institutional backing, Discovery-first evaluations before committing budget to a full agentic AI build Buyers wanting a small, technically rigorous Belgian agency 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

Tensorway vs B12 Consulting: pros and cons

Tensorway
+ Discovery-first option lets smaller buyers de-risk before committing to a full engagement
+ Compliance (GDPR, HIPAA, ISO 27001) embedded as a named phase in the delivery methodology
+ Six-phase methodology reaches a working MVP in roughly a month
+ Backed by a parent company with two-plus decades of software delivery history — rare for an agency-sized team
- Team size (50–249, shared across the parent company's broader practice) still caps very large concurrent programs
- Published case studies are a short list, so depth outside those verticals is less proven
- Minimum engagement and project-count figures are sourced from the company's own site and independently unverifiable
B12 Consulting
+ 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
+ Compact ~35 FTE team keeps senior staff hands-on across every engagement
- 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 agencies on this list

Who should choose Tensorway?

Tensorway is the right choice for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history..

An agency-scale (50–249 person) team combined with a parent company's two-plus-decade delivery track record — unusual for this size bracket.. Minimum engagement starts at $10K (per company website; independently unverifiable). Works best with clients in Healthcare, Financial Services, Retail & E-commerce, Manufacturing.

Who should choose B12 Consulting?

B12 Consulting is the right choice for buyers wanting a small, deeply technical Belgian agency founded by physics researchers..

Founded by PhDs in Physics, giving it a research-adjacent, deeply technical culture uncommon among agencies of its size.. Minimum engagement starts at Not published. Works best with clients in Manufacturing, Technology & SaaS.

Decision matrix: Tensorway vs B12 Consulting

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Tensorway
You need a large dedicated team for an ongoing programme Tensorway
Your budget is at the lower end Compare: Tensorway ($10K (per company website; independently unverifiable)) vs B12 Consulting (Not published)
You need specialist depth in a specific vertical Tensorway
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: Tensorway vs B12 Consulting

Use case Tensorway fit B12 Consulting fit Winner
Smaller buyers wanting an agency-sized team with unusually deep institutional backing Strong Limited Tensorway
Discovery-first evaluations before committing budget to a full agentic AI build Strong Limited Tensorway
Buyers wanting a small, technically rigorous Belgian agency 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: Tensorway vs B12 Consulting

Tensorway (4.5/5) is the stronger overall choice for most AI Agent Development projects. An agency-scale (50–249 person) team combined with a parent company's two-plus-decade delivery track record — unusual for this size bracket.. It is best for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history..

B12 Consulting (3.7/5) is the better choice when buyers wanting a small, deeply technical Belgian agency founded by physics researchers.. If your situation matches those criteria, B12 Consulting is a competitive option.

Related comparisons

Tensorway vs B12 Consulting FAQ

Is Tensorway better than B12 Consulting?

Tensorway (4.5/5) scores higher overall, but "better" depends on your use case. Tensorway is better for smaller buyers wanting an agency-sized team backed by a much longer-tenured parent company's delivery history.. B12 Consulting is better for buyers wanting a small, deeply technical Belgian agency founded by physics researchers..

How do Tensorway and B12 Consulting differ in pricing?

Tensorway uses fixed project, dedicated team, retainer, time & materials, plus a discovery-first exploratory option pricing with a minimum engagement of $10K (per company website; independently unverifiable). 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: Tensorway or B12 Consulting?

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

What are the main differences between Tensorway and B12 Consulting?

Tensorway's primary differentiator is: an agency-scale (50–249 person) team combined with a parent company's two-plus-decade delivery track record — unusual for this size bracket.. B12 Consulting's primary differentiator is: founded by phds in physics, giving it a research-adjacent, deeply technical culture uncommon among agencies of its size.. They also differ in team size (50–249 vs 11–50), minimum engagement ($10K (per company website; independently unverifiable) vs Not published), and primary industries served (Healthcare, Financial Services vs Manufacturing, Technology & SaaS).

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