Best Machine Learning Development Companies in Europe

STX Next vs SDG Group: full comparison for 2026

Last updated: July 2026

Quick verdict

STX Next (4.3/5) edges ahead of SDG Group (3.7/5) overall. STX Next is the better choice for companies needing ML development paired with deep, large-scale Python software engineering capacity. SDG Group is the stronger option for large enterprises wanting ML-driven analytics embedded within a broader business performance management programme. The right choice depends on your project size, budget, and required tech stack.

STX Next vs SDG Group: head-to-head summary

Criterion STX Next SDG Group
Founded 2005 1994
HQ Poznan, Poland Milan, Italy
Team size 201–500 1000+
Rating 4.3 / 5 3.7 / 5
Best for Companies needing ML development paired with deep, large-scale Python software engineering capacity Large enterprises wanting ML-driven analytics embedded within a broader business performance management programme
Pricing model Dedicated team, staff augmentation, fixed project Retainer, dedicated team, fixed project
Min. engagement $25K $50K
Primary tech stack Python, Django, FastAPI Python, Power BI, Tableau
Industries served SaaS, Fintech, Healthcare, E-commerce, Enterprise Enterprise, Financial Services, Retail, Telecommunications

STX Next vs SDG Group: 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.

SDG Group

SDG Group, founded in 1994 and headquartered in Milan, Italy, is a global management consulting firm with roughly 2,000 employees and offices spanning Milan, Barcelona, London, and beyond. SDG Group specializes in business performance management and analytical applications, with machine learning and AI delivered as part of its broader business intelligence and enterprise analytics consulting practice.

Services and capabilities: STX Next vs SDG Group

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

Tech stack comparison: STX Next vs SDG Group

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

Pricing comparison: STX Next vs SDG Group

Criterion STX Next SDG Group
Minimum engagement $25K $50K
Engagement models Dedicated team, Staff augmentation, Fixed project Retainer, Dedicated team, Fixed project
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Accessible

Target audience comparison: STX Next vs SDG Group

Dimension STX Next SDG Group
Best company size Startup to mid-market Startup to mid-market
Best industries SaaS, Fintech, Healthcare Enterprise, Financial Services, Retail
Best use cases ML feature development inside a larger Python software platform, Scaling an engineering team with dedicated Python and ML staff Enterprise business performance management with an ML component, Large-scale analytical applications for finance or retail clients
Typical project type Dedicated team Retainer

STX Next vs SDG Group: 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
SDG Group
+ Three decades of operating history since founding in 1994, as a global management consulting firm
+ Enterprise-scale delivery capacity of roughly 2,000 staff across multiple European and international offices
+ Deep business performance management heritage grounds AI work in measurable business outcomes
+ Established relationships with large enterprise clients across multiple industries
- AI and ML is embedded within a much broader business intelligence and management consulting practice, not a dedicated specialization
- High minimum engagement size, inaccessible for startups or small businesses
- Management-consulting-led engagement model may add overhead versus lean engineering-only ML shops

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 SDG Group?

SDG Group is the right choice for large enterprises wanting ML-driven analytics embedded within a broader business performance management programme.

Three decades of management consulting heritage applied to enterprise-scale analytics and AI programmes. Minimum engagement starts at $50K. Works best with clients in Enterprise, Financial Services, Retail, Telecommunications.

Decision matrix: STX Next vs SDG Group

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 SDG Group

Use case STX Next fit SDG Group 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
Enterprise business performance management with an ML component Strong Strong Both equally
Large-scale analytical applications for finance or retail clients Limited Strong SDG Group
Fixed-price build Limited Limited Both equally
Staff augmentation Strong Limited STX Next

Verdict: STX Next vs SDG Group

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.

SDG Group (3.7/5) is the better choice when large enterprises wanting ML-driven analytics embedded within a broader business performance management programme. If your situation matches those criteria, SDG Group is a competitive option.

Related comparisons

STX Next vs SDG Group FAQ

Is STX Next better than SDG Group?

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. SDG Group is better for large enterprises wanting ML-driven analytics embedded within a broader business performance management programme.

How do STX Next and SDG Group differ in pricing?

STX Next uses dedicated team, staff augmentation, fixed project pricing with a minimum engagement of $25K. SDG Group uses retainer, dedicated team, fixed project pricing with a minimum engagement of $50K. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: STX Next or SDG Group?

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 SDG Group?

STX Next's primary differentiator is: one of europe's largest dedicated python engineering companies, with ml and data practices built on that scale. SDG Group's primary differentiator is: three decades of management consulting heritage applied to enterprise-scale analytics and ai programmes. They also differ in team size (201–500 vs 1000+), minimum engagement ($25K vs $50K), and primary industries served (SaaS, Fintech vs Enterprise, Financial Services).

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