Best AI Development Services Europe

Tensorway vs Andersen: full comparison for 2026

Quick verdict

Tensorway (4.6/5) edges ahead of Andersen (4.2/5) overall. Tensorway is the better choice for EU buyers needing GDPR-native AI delivery, not retrofitted compliance. Andersen is the stronger option for european enterprises wanting AI paired with broad EU-based platform engineering. The right choice depends on your project size, budget, and required tech stack.

Tensorway vs Andersen: head-to-head summary

Criterion Tensorway Andersen
Founded 2019 2007
HQ Alicante, Spain Warsaw, Poland
Team size 20-50 3,500+
Rating 4.6 / 5 4.2 / 5
Primary differentiator Spanish legal entity with GDPR/HIPAA/ISO 9001/ISO 27001 compliance built in from founding 3,500-plus specialists across 20 mostly-European offices with a named AI and data practice
Pricing model Fixed-scope project, dedicated team, or paid discovery phase Dedicated team or retainer
Min. engagement Not disclosed Not disclosed
Primary tech stack Python, PyTorch, TensorFlow Python, .NET, Java
Industries served Legal, Private equity & finance, E-learning, Sports & media Financial services, Healthcare, Logistics, Automotive

Tensorway vs Andersen: overview

Tensorway

Tensorway operates out of Alicante, Spain as the applied-AI arm of a longer-running Spanish software house with roughly 25 years of prior delivery history. Set up in 2019 as a standalone unit of 20-50 deep learning architects, MLOps engineers, ML engineers, and QAs, it documents every engagement against GDPR, HIPAA, ISO 9001, and ISO 27001, a compliance bar that matters directly to European buyers navigating data residency questions. Case work spans an agentic essay-evaluation tutor for an Australian e-learning client, a legal document automation agent reported at roughly 90% accuracy for a US law practice (per company website; independently unverifiable), and a deal-sourcing agent built for a Swedish private equity firm, a genuinely European client.

Andersen

Andersen was founded in 2007 and is headquartered in Warsaw, Poland, an EU member state, with more than 3,500 specialists across 20 office locations and 16 development centers, many within Europe. Its named AI and data practice covers AI consulting, machine learning, data engineering, and robotic process integration, alongside a broader stack spanning .NET, Java, Python, PHP, and Go. Industries served include financial services, healthcare, logistics, automotive, and media across European and global clients.

Services and capabilities: Tensorway vs Andersen

Capability Tensorway Andersen
Generative AI
Machine learning
AI agents
MLOps
AI consulting
Fixed-price projects
Dedicated team model

Tech stack comparison: Tensorway vs Andersen

Framework / platform Tensorway Andersen
Python
AWS
Azure N/A
OpenAI API N/A N/A
TensorFlow N/A
PyTorch N/A
Kubernetes N/A

Pricing comparison: Tensorway vs Andersen

Criterion Tensorway Andersen
Minimum engagement Not disclosed Not disclosed
Engagement models Fixed project, Dedicated team, Discovery phase Dedicated team, Retainer
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Tensorway vs Andersen

Dimension Tensorway Andersen
Best company size Startup to mid-market Startup to mid-market
Best industries Legal, Private equity & finance, E-learning Financial services, Healthcare, Logistics
Best use cases Needing an AI vendor whose GDPR compliance is native to its own jurisdiction, not adapted after the fact., Automating a compliance-sensitive manual process in legal, finance, or healthcare within the EU. Running an AI initiative for an EU enterprise that needs to plug into an existing multi-technology stack., Adding robotic process integration alongside an AI project for a European manufacturing client.
Typical project type Fixed project Dedicated team

Tensorway vs Andersen: pros and cons

Tensorway
+ Spanish, EU-jurisdiction legal entity means GDPR compliance is native, not bolted on for foreign clients.
+ Certified against GDPR, HIPAA, ISO 9001, and ISO 27001 as standard practice.
+ Documented delivery to a Swedish private equity client shows real intra-EU work, not just an EU address.
+ AI-only unit avoids the diluted focus of a generalist firm treating AI as a side practice.
+ Ships an initial working prototype within weeks based on documented case work.
- A 20-50 person team caps parallel capacity for very large enterprise rollouts
- Case studies published so far lean toward early-production scale, not massive EU-wide deployments
Andersen
+ Warsaw headquarters puts the legal entity inside the EU, simplifying contracting for European buyers.
+ Large European footprint (20 offices, 16 development centers) supports concurrent enterprise programs.
+ Named AI and data practice, not a generic add-on to broader software services.
+ Vertical coverage spans financial services, healthcare, logistics, and automotive across Europe.
- AI is one practice area within a much larger, multi-stack engineering business
- Scale typically means a more formal sales and onboarding process than boutique firms

Who should choose Tensorway?

A typical fit: needing an AI vendor whose GDPR compliance is native to its own jurisdiction, not adapted after the fact.

Spanish legal entity with GDPR/HIPAA/ISO 9001/ISO 27001 compliance built in from founding. Minimum engagement is not publicly disclosed. Works best with clients in Legal, Private equity & finance, E-learning, Sports & media.

Who should choose Andersen?

A typical fit: running an AI initiative for an EU enterprise that needs to plug into an existing multi-technology stack.

3,500-plus specialists across 20 mostly-European offices with a named AI and data practice. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Healthcare, Logistics, Automotive.

Decision matrix: Tensorway vs Andersen

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 (Not disclosed) vs Andersen (Not disclosed)
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 Tensorway

Use case fit: Tensorway vs Andersen

Use case Tensorway fit Andersen fit Winner
Needing an AI vendor whose GDPR compliance is native to its own jurisdiction, not adapted after the fact. Strong Strong Both equally
Automating a compliance-sensitive manual process in legal, finance, or healthcare within the EU. Strong Limited Tensorway
Running an AI initiative for an EU enterprise that needs to plug into an existing multi-technology stack. Limited Strong Andersen
Adding robotic process integration alongside an AI project for a European manufacturing client. Limited Strong Andersen
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: Tensorway vs Andersen

Tensorway (4.6/5) is the stronger overall choice for most AI Development projects. Spanish legal entity with GDPR/HIPAA/ISO 9001/ISO 27001 compliance built in from founding.

Andersen (4.2/5) is worth a look if you need adding robotic process integration alongside an AI project for a European manufacturing client. If your situation matches that, Andersen is a competitive option.

Related comparisons

Tensorway vs Andersen FAQ

Is Tensorway better than Andersen?

Tensorway (4.6/5) scores higher overall, but "better" depends on your use case. Tensorway's strongest advantage: Spanish, EU-jurisdiction legal entity means GDPR compliance is native, not bolted on for foreign clients. Andersen's strongest advantage: warsaw headquarters puts the legal entity inside the EU, simplifying contracting for European buyers.

How do Tensorway and Andersen differ in pricing?

Tensorway uses fixed-scope project, dedicated team, or paid discovery phase pricing. Andersen uses dedicated team or retainer pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Tensorway or Andersen?

Andersen 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 Andersen?

Tensorway's primary differentiator is: spanish legal entity with GDPR/HIPAA/ISO 9001/ISO 27001 compliance built in from founding. Andersen's primary differentiator is: 3,500-plus specialists across 20 mostly-European offices with a named AI and data practice. They also differ in team size (20-50 vs 3,500+), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Legal, Private equity & finance vs Financial services, Healthcare).

Verify all details directly with each company before making a decision.