Top Machine Learning Development Services in Europe

WeAreBrain vs STX Next: full comparison for 2026

Last updated: July 2026

Quick verdict

WeAreBrain (4.3/5) edges ahead of STX Next (4.0/5) overall. WeAreBrain is the better choice for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model.. STX Next is the stronger option for enterprises wanting Python-native ML and AI engineering from a vendor with two decades of Python specialization and certified partnerships across all three major clouds.. The right choice depends on your project size, budget, and required tech stack.

WeAreBrain vs STX Next: head-to-head summary

Criterion WeAreBrain STX Next
Founded 2015 2005
HQ Netherlands (internationally distributed team) Poznań, Poland
Team size 60+ 330
Rating 4.3 / 5 4.0 / 5
Best for Startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model. Enterprises wanting Python-native ML and AI engineering from a vendor with two decades of Python specialization and certified partnerships across all three major clouds.
Pricing model Dedicated team, fixed project Fixed project, dedicated team, staff augmentation
Min. engagement Not published Not published
Primary tech stack Python, AI product tooling, Shopify/SAP Commerce Cloud integrations Python, AWS, Snowflake
Industries served Transport & Logistics, Healthcare, EdTech, Retail/E-commerce Financial Services, Manufacturing, Energy & Utilities, Healthcare, Retail/E-commerce

WeAreBrain vs STX Next: overview

WeAreBrain

WeAreBrain is a Netherlands-headquartered AI-native product studio founded in 2015, combining AI product development with software modernization, e-commerce integrations, and automation services. It describes itself as 'a winning team, not an agency,' with a 60+ person, 13-nationality team and an average client tenure of 3.8 years, alongside an NPS score above 80 (per company website). Named clients include SidelineSwap and clevergig, which was acquired by Visma.

STX Next

STX Next is a Poznań, Poland software company founded in 2005, describing itself as the largest Python-focused software development company in Europe with 330 employees operating a fully remote model across the US, UK, DACH region, and Poland. It holds simultaneous AWS Advanced Tier, Snowflake, Databricks, Microsoft Azure, and Amazon Bedrock partnerships, and built and open-sourced DeepNext, an autonomous AI developer agent, serving financial services, private equity, manufacturing, oil & gas, and healthcare clients.

Services and capabilities: WeAreBrain vs STX Next

Capability WeAreBrain STX Next
ML Development
AI Consulting
Computer Vision
NLP
Generative AI
MLOps
Data Engineering
Staff Augmentation

Tech stack comparison: WeAreBrain vs STX Next

Framework / platform WeAreBrain STX Next
Python
AWS N/A
Microsoft Azure N/A
Google Cloud N/A N/A
Kubernetes N/A N/A
PyTorch N/A N/A
LangChain N/A N/A
Databricks N/A

Pricing comparison: WeAreBrain vs STX Next

Criterion WeAreBrain STX Next
Minimum engagement Not published Not published
Engagement models Dedicated team, Fixed project Fixed project, Dedicated team, Staff augmentation
Rate transparency Not public Not public
Price tier Enterprise / mid-market Enterprise / mid-market

Target audience comparison: WeAreBrain vs STX Next

Dimension WeAreBrain STX Next
Best company size Startup to mid-market Mid-market to enterprise
Best industries Transport & Logistics, Healthcare, EdTech Financial Services, Manufacturing, Energy & Utilities
Best use cases AI-native product MVP development, E-commerce AI personalization Python-native ML pipeline development, Multi-cloud MLOps using Databricks, Snowflake, and Bedrock
Typical project type Dedicated team Fixed project

WeAreBrain vs STX Next: pros and cons

WeAreBrain
+ 80+ NPS and 3.8-year average client tenure signal strong retention (per company website)
+ 13-nationality team supports multilingual, multi-market European delivery
+ Combines AI-native product development with broader software modernization services
+ Founded 2015 with a decade of continuous operation
- Broader software, e-commerce, and automation service lines mean ML is one of several offerings, not the sole focus
- 60+ team size is modest relative to enterprise-scale competitors on this list
- Notable named clients (SidelineSwap, clevergig) are smaller-profile than some competitors' enterprise logos
STX Next
+ Largest Python-focused software company in Europe (per company website), giving deep bench strength for Python-native ML engineering
+ Certified across AWS Advanced Tier, Snowflake, Databricks, Azure, and Amazon Bedrock simultaneously — an unusually broad multi-cloud partner portfolio
+ Open-sourced its own autonomous AI dev agent (DeepNext), demonstrating in-house AI R&D beyond client work
+ 330 employees and a fully remote model across the US, UK, DACH, and Poland gives wide delivery flexibility
- AI and ML is one part of a much broader Python software-development practice, not the company's sole specialization
- 330-person scale means less boutique-style founder involvement than smaller specialists on this list
- Broad industry spread from banking to oil & gas trades vertical depth for breadth

Who should choose WeAreBrain?

WeAreBrain is the right choice for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model..

Frames itself around culture and retention — 'a winning team, not an agency' — with a long average client tenure as central to its pitch alongside technical delivery.. Minimum engagement starts at Not published. Works best with clients in Transport & Logistics, Healthcare, EdTech, Retail/E-commerce.

Who should choose STX Next?

STX Next is the right choice for enterprises wanting Python-native ML and AI engineering from a vendor with two decades of Python specialization and certified partnerships across all three major clouds..

Built and open-sourced DeepNext, an autonomous AI developer agent, and holds AWS Advanced Tier, Snowflake, Databricks, Azure, and Amazon Bedrock partnerships simultaneously.. Minimum engagement starts at Not published. Works best with clients in Financial Services, Manufacturing, Energy & Utilities, Healthcare, Retail/E-commerce.

Decision matrix: WeAreBrain vs STX Next

Your situation Recommended choice
You need full-ownership delivery on a defined project scope WeAreBrain
You need a large dedicated team for an ongoing programme WeAreBrain
Your budget is at the lower end Compare: WeAreBrain (Not published) vs STX Next (Not published)
You need specialist depth in a specific vertical STX Next
You need staff augmentation or team extension STX Next
You need consulting before committing to a build WeAreBrain

Use case fit: WeAreBrain vs STX Next

Use case WeAreBrain fit STX Next fit Winner
AI-native product MVP development Strong Limited WeAreBrain
E-commerce AI personalization Strong Limited WeAreBrain
Python-native ML pipeline development Limited Strong STX Next
Multi-cloud MLOps using Databricks, Snowflake, and Bedrock Limited Strong STX Next
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: WeAreBrain vs STX Next

WeAreBrain (4.3/5) is the stronger overall choice for most Machine Learning Development projects. Frames itself around culture and retention — 'a winning team, not an agency' — with a long average client tenure as central to its pitch alongside technical delivery.. It is best for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model..

STX Next (4.0/5) is the better choice when enterprises wanting Python-native ML and AI engineering from a vendor with two decades of Python specialization and certified partnerships across all three major clouds.. If your situation matches those criteria, STX Next is a competitive option.

Related comparisons

WeAreBrain vs STX Next FAQ

Is WeAreBrain better than STX Next?

WeAreBrain (4.3/5) scores higher overall, but "better" depends on your use case. WeAreBrain is better for startups and scale-ups wanting AI-native product development combined with broader software modernization, not just an isolated ML model.. STX Next is better for enterprises wanting Python-native ML and AI engineering from a vendor with two decades of Python specialization and certified partnerships across all three major clouds..

How do WeAreBrain and STX Next differ in pricing?

WeAreBrain uses dedicated team, fixed project pricing with a minimum engagement of Not published. STX Next uses fixed project, dedicated team, 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: WeAreBrain or STX Next?

STX Next 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 WeAreBrain and STX Next?

WeAreBrain's primary differentiator is: frames itself around culture and retention — 'a winning team, not an agency' — with a long average client tenure as central to its pitch alongside technical delivery.. STX Next's primary differentiator is: built and open-sourced deepnext, an autonomous ai developer agent, and holds aws advanced tier, snowflake, databricks, azure, and amazon bedrock partnerships simultaneously.. They also differ in team size (60+ vs 330), minimum engagement (Not published vs Not published), and primary industries served (Transport & Logistics, Healthcare vs Financial Services, Manufacturing).

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