Best AI Agent Development Companies in Europe

Tensorway vs Belitsoft: full comparison for 2026

Last updated: August 2026

Quick verdict

Tensorway (4.8/5) edges ahead of Belitsoft (3.7/5) overall. Tensorway is the better choice for european buyers wanting a fully EU-domiciled vendor with GDPR compliance embedded in the delivery methodology itself.. Belitsoft is the stronger option for european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check.. The right choice depends on your project size, budget, and required tech stack.

Tensorway vs Belitsoft: head-to-head summary

Criterion Tensorway Belitsoft
Founded 2019 2004
HQ Alicante, Spain Warsaw, Poland
Team size 50–249 51–400
Rating 4.8 / 5 3.7 / 5
Best for European buyers wanting a fully EU-domiciled vendor with GDPR compliance embedded in the delivery methodology itself. European healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check.
Pricing model Fixed project, dedicated team, retainer, time & materials, plus a discovery-first exploratory option Fixed project, dedicated team
Min. engagement $10K (per company website; independently unverifiable) $20K (per company website; independently unverifiable)
Primary tech stack Python, TypeScript, LangChain Python, LangChain, AWS
Industries served Healthcare, Financial Services, Retail & E-commerce, Manufacturing Healthcare, Financial Services, Technology & SaaS

Tensorway vs Belitsoft: overview

Tensorway

Tensorway is the AI-focused unit of an established software development company headquartered in Alicante, Spain, with roughly 25 years in the market, giving it an EU legal entity and EU data residency by default rather than as a retrofitted option. Its six-phase delivery methodology names compliance — GDPR, HIPAA, and ISO 27001 — as an explicit phase rather than an afterthought, and its lightweight, API-first architecture is designed to connect into a client's existing systems without a platform overhaul. As a Spanish company operating fully within EU jurisdiction, it avoids the cross-border data-transfer questions that non-EU vendors on this list have to answer.

Belitsoft

Belitsoft is a custom software development company founded in 2004 with headquarters in Warsaw, Poland and delivery teams distributed across Poland, Latvia, and Georgia, totaling roughly 130–400 developers, testers, and other specialists depending on the source. Its existing vertical experience in e-learning, healthcare, and fintech gives European buyers in those sectors a directly comparable reference base. Its Poland and Latvia offices sit within the EU; its Georgia office sits outside EU jurisdiction, worth confirming per-project data residency.

Services and capabilities: Tensorway vs Belitsoft

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

Tech stack comparison: Tensorway vs Belitsoft

Framework / platform Tensorway Belitsoft
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
Kubernetes N/A N/A

Pricing comparison: Tensorway vs Belitsoft

Criterion Tensorway Belitsoft
Minimum engagement $10K (per company website; independently unverifiable) $20K (per company website; independently unverifiable)
Engagement models Fixed project, Dedicated team, Retainer, Time & materials, Discovery-first Fixed project, Dedicated team
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Accessible

Target audience comparison: Tensorway vs Belitsoft

Dimension Tensorway Belitsoft
Best company size Startup to mid-market Startup to mid-market
Best industries Healthcare, Financial Services, Retail & E-commerce Healthcare, Financial Services, Technology & SaaS
Best use cases European enterprises needing an EU-domiciled vendor for data-residency-sensitive agent deployments, Deploying a RAG-backed knowledge agent over proprietary internal documents under GDPR constraints European healthcare or fintech buyers wanting sector-matched reference contracts, E-learning platforms adding AI tutoring or advisory agents
Typical project type Fixed project Fixed project

Tensorway vs Belitsoft: pros and cons

Tensorway
+ Fully EU-domiciled legal entity avoids cross-border data-transfer complexity for European clients
+ Compliance embedded as a named phase in the delivery methodology, not an add-on policy
+ Lightweight, API-first architecture connects into existing systems without a platform overhaul
+ Six-phase methodology reaches a working MVP in roughly a month
+ Backed by a parent company with two-plus decades of European software delivery history
- Team size (50–249, shared across the parent company's broader practice) is smaller than several global systems integrators on this list
- 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
Belitsoft
+ Two decades of vertical delivery experience in healthcare, fintech, and e-learning
+ Poland and Latvia delivery centers sit within the EU for data-residency purposes
+ Founded 2004 with continuous operating history
+ Existing sector expertise helps agentic work meet vertical-specific compliance and workflow needs
- Georgia delivery office sits outside EU jurisdiction — worth confirming which team works on a given project
- Reported employee counts vary widely across sources, worth confirming directly
- Agentic AI is a newer addition to a generalist custom-software practice

Who should choose Tensorway?

Tensorway is the right choice for european buyers wanting a fully EU-domiciled vendor with GDPR compliance embedded in the delivery methodology itself..

A Spain-headquartered legal entity with GDPR compliance as a named phase in its delivery methodology, not a bolt-on policy.. 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 Belitsoft?

Belitsoft is the right choice for european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check..

Two decades of vertical delivery history in e-learning, healthcare, and fintech, with a mostly-EU (Poland, Latvia) delivery footprint.. Minimum engagement starts at $20K (per company website; independently unverifiable). Works best with clients in Healthcare, Financial Services, Technology & SaaS.

Decision matrix: Tensorway vs Belitsoft

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 Tensorway
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 Belitsoft

Use case Tensorway fit Belitsoft fit Winner
European enterprises needing an EU-domiciled vendor for data-residency-sensitive agent deployments Strong Strong Both equally
Deploying a RAG-backed knowledge agent over proprietary internal documents under GDPR constraints Strong Limited Tensorway
European healthcare or fintech buyers wanting sector-matched reference contracts Strong Strong Both equally
E-learning platforms adding AI tutoring or advisory agents Limited Strong Belitsoft
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: Tensorway vs Belitsoft

Tensorway (4.8/5) is the stronger overall choice for most AI Agent Development projects. A Spain-headquartered legal entity with GDPR compliance as a named phase in its delivery methodology, not a bolt-on policy.. It is best for european buyers wanting a fully EU-domiciled vendor with GDPR compliance embedded in the delivery methodology itself..

Belitsoft (3.7/5) is the better choice when european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check.. If your situation matches those criteria, Belitsoft is a competitive option.

Related comparisons

Tensorway vs Belitsoft FAQ

Is Tensorway better than Belitsoft?

Tensorway (4.8/5) scores higher overall, but "better" depends on your use case. Tensorway is better for european buyers wanting a fully EU-domiciled vendor with GDPR compliance embedded in the delivery methodology itself.. Belitsoft is better for european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check..

How do Tensorway and Belitsoft 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). Belitsoft uses fixed project, dedicated team pricing with a minimum engagement of $20K (per company website; independently unverifiable). Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Tensorway or Belitsoft?

Belitsoft 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 Tensorway and Belitsoft?

Tensorway's primary differentiator is: a spain-headquartered legal entity with gdpr compliance as a named phase in its delivery methodology, not a bolt-on policy.. Belitsoft's primary differentiator is: two decades of vertical delivery history in e-learning, healthcare, and fintech, with a mostly-eu (poland, latvia) delivery footprint.. They also differ in team size (50–249 vs 51–400), minimum engagement ($10K (per company website; independently unverifiable) vs $20K (per company website; independently unverifiable)), and primary industries served (Healthcare, Financial Services vs Healthcare, Financial Services).

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