Best Machine Learning Development Companies in Europe

STX Next vs DEPT: full comparison for 2026

Last updated: July 2026

Quick verdict

STX Next (4.3/5) edges ahead of DEPT (4.0/5) overall. STX Next is the better choice for companies needing ML development paired with deep, large-scale Python software engineering capacity. DEPT is the stronger option for large enterprise brands needing ML-driven marketing personalization at global scale. The right choice depends on your project size, budget, and required tech stack.

STX Next vs DEPT: head-to-head summary

Criterion STX Next DEPT
Founded 2005 2015
HQ Poznan, Poland Amsterdam, Netherlands
Team size 201–500 1000+
Rating 4.3 / 5 4.0 / 5
Best for Companies needing ML development paired with deep, large-scale Python software engineering capacity Large enterprise brands needing ML-driven marketing personalization at global scale
Pricing model Dedicated team, staff augmentation, fixed project Retainer, dedicated team
Min. engagement $25K $75K
Primary tech stack Python, Django, FastAPI Python, GCP, AWS
Industries served SaaS, Fintech, Healthcare, E-commerce, Enterprise Retail, Media, Enterprise, E-commerce

STX Next vs DEPT: overview

STX Next

STX Next, founded in March 2005 in Poznan, Poland, grew from an 8-person startup into a nearly 500-person Python engineering firm with delivery centers across Poland and Mexico. Known primarily as one of Europe's largest dedicated Python engineering companies, STX Next has built out AI/ML and data engineering practices on top of its deep Python bench, making it a strong generalist option for ML projects that also require broader software engineering.

DEPT

DEPT, founded in Amsterdam in 2015, has grown into a global digital agency with over 4,000 digital specialists across more than 30 offices on five continents, backed by the Carlyle Group. DEPT's AI-enabled marketing technology platform, Ada, and its Engineering practice deliver machine learning-driven personalization, growth, and data engineering work for major brands including Google, TikTok, and eBay. As a large, private-equity-backed marketing and engineering agency, ML and AI here sits within a much broader full-service offering rather than being the firm's sole focus.

Services and capabilities: STX Next vs DEPT

Capability STX Next DEPT
ML model development
Computer vision
NLP
Generative AI / LLM integration
MLOps
AI strategy consulting
Staff augmentation

Tech stack comparison: STX Next vs DEPT

Framework / platform STX Next DEPT
Python
TensorFlow
PyTorch N/A
AWS
Azure N/A
Kubernetes N/A N/A

Pricing comparison: STX Next vs DEPT

Criterion STX Next DEPT
Minimum engagement $25K $75K
Engagement models Dedicated team, Staff augmentation, Fixed project Retainer, Dedicated team
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Accessible

Target audience comparison: STX Next vs DEPT

Dimension STX Next DEPT
Best company size Startup to mid-market Startup to mid-market
Best industries SaaS, Fintech, Healthcare Retail, Media, Enterprise
Best use cases ML feature development inside a larger Python software platform, Scaling an engineering team with dedicated Python and ML staff ML-driven marketing personalization at global brand scale, Enterprise data engineering supporting a large media or retail platform
Typical project type Dedicated team Retainer

STX Next vs DEPT: pros and cons

STX Next
+ Two decades of operating history since founding in 2005 with proven scale of roughly 500 engineers
+ Deep Python engineering bench supports complex ML and software integration projects
+ Multiple delivery centers across Poland and Mexico for coverage flexibility
+ Established staff augmentation model for teams needing to scale quickly
- ML and AI is one practice among several rather than the firm's sole focus
- Larger organizational size may mean less founder-level attention than boutique specialists
- Best fit skews toward Python-centric stacks rather than polyglot ML environments
DEPT
+ Global scale of over 4,000 specialists across 30-plus offices, unmatched by any other firm on this list
+ Proprietary AI-enabled marketing technology platform, Ada, with proven enterprise brand clients
+ Carlyle Group backing provides financial stability for very large, long-term programmes
+ Named clients include Google, TikTok, KFC, and eBay, indicating enterprise-grade delivery capacity
- ML and AI sits within a much broader marketing and full-service digital agency offering, not a dedicated ML practice
- High minimum engagement size, inaccessible for startups or small businesses
- Enterprise agency structure means less specialized, boutique-style ML research depth

Who should choose STX Next?

STX Next is the right choice for companies needing ML development paired with deep, large-scale Python software engineering capacity.

One of Europe's largest dedicated Python engineering companies, with ML and data practices built on that scale. Minimum engagement starts at $25K. Works best with clients in SaaS, Fintech, Healthcare, E-commerce, Enterprise.

Who should choose DEPT?

DEPT is the right choice for large enterprise brands needing ML-driven marketing personalization at global scale.

Proprietary AI marketing platform, Ada, and global scale of over 4,000 specialists across 30-plus offices, unmatched by any other firm on this list. Minimum engagement starts at $75K. Works best with clients in Retail, Media, Enterprise, E-commerce.

Decision matrix: STX Next vs DEPT

Your situation Recommended choice
You need full-ownership delivery on a defined project scope STX Next
You need a large dedicated team for an ongoing programme STX Next
Your budget is at the lower end STX Next
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 STX Next

Use case fit: STX Next vs DEPT

Use case STX Next fit DEPT fit Winner
ML feature development inside a larger Python software platform Strong Strong Both equally
Scaling an engineering team with dedicated Python and ML staff Strong Limited STX Next
ML-driven marketing personalization at global brand scale Limited Strong DEPT
Enterprise data engineering supporting a large media or retail platform Strong Strong Both equally
Fixed-price build Limited Limited Both equally
Staff augmentation Strong Limited STX Next

Verdict: STX Next vs DEPT

STX Next (4.3/5) is the stronger overall choice for most Machine Learning Development projects. One of Europe's largest dedicated Python engineering companies, with ML and data practices built on that scale. It is best for companies needing ML development paired with deep, large-scale Python software engineering capacity.

DEPT (4.0/5) is the better choice when large enterprise brands needing ML-driven marketing personalization at global scale. If your situation matches those criteria, DEPT is a competitive option.

Related comparisons

STX Next vs DEPT FAQ

Is STX Next better than DEPT?

STX Next (4.3/5) scores higher overall, but "better" depends on your use case. STX Next is better for companies needing ML development paired with deep, large-scale Python software engineering capacity. DEPT is better for large enterprise brands needing ML-driven marketing personalization at global scale.

How do STX Next and DEPT differ in pricing?

STX Next uses dedicated team, staff augmentation, fixed project pricing with a minimum engagement of $25K. DEPT uses retainer, dedicated team pricing with a minimum engagement of $75K. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: STX Next or DEPT?

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 STX Next and DEPT?

STX Next's primary differentiator is: one of europe's largest dedicated python engineering companies, with ml and data practices built on that scale. DEPT's primary differentiator is: proprietary ai marketing platform, ada, and global scale of over 4,000 specialists across 30-plus offices, unmatched by any other firm on this list. They also differ in team size (201–500 vs 1000+), minimum engagement ($25K vs $75K), and primary industries served (SaaS, Fintech vs Retail, Media).

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