Top Machine Learning Development Services in Europe

Addepto vs STX Next: full comparison for 2026

Last updated: July 2026

Quick verdict

Addepto (4.4/5) edges ahead of STX Next (4.0/5) overall. Addepto is the better choice for mid-market to enterprise buyers in aviation, logistics, or finance that already have a proof-of-concept and need it hardened into a production MLOps pipeline.. 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.

Addepto vs STX Next: head-to-head summary

Criterion Addepto STX Next
Founded 2017 2005
HQ Warsaw, Poland Poznań, Poland
Team size 50–249 330
Rating 4.4 / 5 4.0 / 5
Best for Mid-market to enterprise buyers in aviation, logistics, or finance that already have a proof-of-concept and need it hardened into a production MLOps pipeline. 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 Fixed project, Time & Materials Fixed project, dedicated team, staff augmentation
Min. engagement $10,000+ Not published
Primary tech stack Python, MLOps pipelines, AWS Python, AWS, Snowflake
Industries served Aviation, Manufacturing, Automotive, Financial Services, Retail/E-commerce, Logistics Financial Services, Manufacturing, Energy & Utilities, Healthcare, Retail/E-commerce

Addepto vs STX Next: overview

Addepto

Addepto is a Warsaw, Poland AI consultancy founded in 2017 that explicitly positions its value around production-grade delivery — moving clients from proof-of-concept to production — rather than research exploration. It covers AI consulting, generative AI development, data engineering, MLOps, document processing, and computer vision, serving aviation, manufacturing, automotive, finance, retail, healthcare, and logistics clients. Addepto is a GoodFirms top-rated firm for Big Data and Business Intelligence services, with a 50–249 employee band per Clutch.

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: Addepto vs STX Next

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

Tech stack comparison: Addepto vs STX Next

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

Pricing comparison: Addepto vs STX Next

Criterion Addepto STX Next
Minimum engagement $10,000+ Not published
Engagement models Fixed project, Time & Materials, Dedicated team Fixed project, Dedicated team, Staff augmentation
Rate transparency Minimum disclosed Not public
Price tier Accessible Enterprise / mid-market

Target audience comparison: Addepto vs STX Next

Dimension Addepto STX Next
Best company size Startup to mid-market Mid-market to enterprise
Best industries Aviation, Manufacturing, Automotive Financial Services, Manufacturing, Energy & Utilities
Best use cases Computer vision for document processing, MLOps pipeline hardening for existing proof-of-concepts Python-native ML pipeline development, Multi-cloud MLOps using Databricks, Snowflake, and Bedrock
Typical project type Fixed project Fixed project

Addepto vs STX Next: pros and cons

Addepto
+ Broad industry coverage from aviation to legal shows delivery flexibility beyond a single vertical
+ Explicit MLOps and production focus addresses the common 'stuck in proof-of-concept' failure mode
+ $10K entry point is accessible for a mid-market pilot engagement
+ GoodFirms top-rated recognition for Big Data and Business Intelligence services
- Broad industry spread can mean less depth in any single regulated vertical than a specialist boutique
- Exact team size within the 50–249 Clutch band is not broken out by function
- Public case studies are largely testimonial-based rather than published with hard metrics
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 Addepto?

Addepto is the right choice for mid-market to enterprise buyers in aviation, logistics, or finance that already have a proof-of-concept and need it hardened into a production MLOps pipeline..

Explicit 'proof-of-concept to production' positioning addresses the common failure mode where enterprise ML pilots never reach deployment.. Minimum engagement starts at $10,000+. Works best with clients in Aviation, Manufacturing, Automotive, Financial Services, Retail/E-commerce, Logistics.

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: Addepto vs STX Next

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Addepto
You need a large dedicated team for an ongoing programme Addepto
Your budget is at the lower end Compare: Addepto ($10,000+) vs STX Next (Not published)
You need specialist depth in a specific vertical Addepto
You need staff augmentation or team extension STX Next
You need consulting before committing to a build Addepto

Use case fit: Addepto vs STX Next

Use case Addepto fit STX Next fit Winner
Computer vision for document processing Strong Limited Addepto
MLOps pipeline hardening for existing proof-of-concepts Strong Strong Both equally
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: Addepto vs STX Next

Addepto (4.4/5) is the stronger overall choice for most Machine Learning Development projects. Explicit 'proof-of-concept to production' positioning addresses the common failure mode where enterprise ML pilots never reach deployment.. It is best for mid-market to enterprise buyers in aviation, logistics, or finance that already have a proof-of-concept and need it hardened into a production MLOps pipeline..

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

Addepto vs STX Next FAQ

Is Addepto better than STX Next?

Addepto (4.4/5) scores higher overall, but "better" depends on your use case. Addepto is better for mid-market to enterprise buyers in aviation, logistics, or finance that already have a proof-of-concept and need it hardened into a production MLOps pipeline.. 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 Addepto and STX Next differ in pricing?

Addepto uses fixed project, time & materials pricing with a minimum engagement of $10,000+. 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: Addepto or STX Next?

Addepto 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 Addepto and STX Next?

Addepto's primary differentiator is: explicit 'proof-of-concept to production' positioning addresses the common failure mode where enterprise ml pilots never reach deployment.. 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 (50–249 vs 330), minimum engagement ($10,000+ vs Not published), and primary industries served (Aviation, Manufacturing vs Financial Services, Manufacturing).

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