Best Machine Learning Development Agencies

ITRex Group vs Belitsoft: full comparison for 2026

Last updated: July 2026

Quick verdict

ITRex Group (4.2/5) edges ahead of Belitsoft (3.9/5) overall. ITRex Group is the better choice for mid-market companies combining AI/ML work with IoT or edge-device deployment.. Belitsoft is the stronger option for small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing.. The right choice depends on your project size, budget, and required tech stack.

ITRex Group vs Belitsoft: head-to-head summary

Criterion ITRex Group Belitsoft
Founded 2009 2004
HQ Santa Monica, California, USA Warsaw, Poland
Team size 201–500 201–500
Rating 4.2 / 5 3.9 / 5
Best for Mid-market companies combining AI/ML work with IoT or edge-device deployment. Small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing.
Pricing model Fixed project, Time & Material, staff augmentation Fixed project and Time & Material
Min. engagement $25K $15K
Primary tech stack Python, TensorFlow, AWS IoT Python, Scikit-learn, AWS
Industries served Manufacturing, Healthcare, Retail, Technology/SaaS Healthcare, Financial Services, Technology/SaaS

ITRex Group vs Belitsoft: overview

ITRex Group

ITRex Group is a technology consulting and software development company founded in 2009 by Yury Korvel and Vitali Likhadzed, headquartered in Santa Monica, California, with delivery operations in Poland, Georgia, and Bulgaria. Reported headcount varies by source, from roughly 201–500 employees to a stated 250+ specialists; the firm covers AI consulting and development, data analytics, IoT, and cloud migration.

Belitsoft

Belitsoft is a software development company founded in 2004, headquartered in Warsaw, Poland, with development centers in Gomel and Brest, Belarus. Reported headcount ranges from roughly 250 to 400+ developers, testers, project managers, and DevOps specialists, and the firm has expanded its cloud and AI development proficiency to include generative AI, predictive analytics, and forecasting models alongside its core custom software development practice.

Services and capabilities: ITRex Group vs Belitsoft

Capability ITRex Group Belitsoft
Custom ML model development
Deep learning & computer vision
NLP & LLM / Generative AI
MLOps & production deployment
Data engineering
AI strategy consulting
Staff augmentation

Tech stack comparison: ITRex Group vs Belitsoft

Framework / platform ITRex Group Belitsoft
Python
TensorFlow N/A
PyTorch N/A N/A
AWS
Azure
Google Cloud N/A N/A
Kubernetes N/A N/A
Databricks N/A N/A
LangChain N/A N/A

Pricing comparison: ITRex Group vs Belitsoft

Criterion ITRex Group Belitsoft
Minimum engagement $25K $15K
Engagement models Fixed project, Time & Material, Staff augmentation Fixed project, Time & Material
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Accessible

Target audience comparison: ITRex Group vs Belitsoft

Dimension ITRex Group Belitsoft
Best company size Startup to mid-market Startup to mid-market
Best industries Manufacturing, Healthcare, Retail Healthcare, Financial Services, Technology/SaaS
Best use cases AI models that need to run on or alongside IoT/edge hardware, Manufacturing predictive-maintenance projects combining sensor data and ML Small-to-mid companies wanting a cost-effective partner for a forecasting or recommendation-engine build, Healthcare or finance clients needing predictive analytics added to an existing software product
Typical project type Fixed project Fixed project

ITRex Group vs Belitsoft: pros and cons

ITRex Group
+ 15 years of operating history with a consistent US headquarters and leadership team
+ Edge/IoT plus AI combination is a genuine differentiator versus cloud-only ML shops
+ Multi-country delivery (Poland, Georgia, Bulgaria) gives some cost and timezone flexibility
+ Offers staff augmentation alongside project delivery for buyers wanting to extend in-house teams
- Reported headcount varies meaningfully by source (201–500 vs. 250+), so buyers should confirm current team size
- Less deep specialist AI/ML certification profile than boutiques like Neurons Lab or AI Superior
- Public materials emphasize breadth (AI, IoT, cloud) over demonstrated depth in any single ML subdomain
Belitsoft
+ 21 years of continuous custom software development history
+ Accessible minimum engagement size relative to enterprise-scale competitors on this list
+ Deep expertise cited in Big Data, Deep Learning, and Predictive Analytics beyond generic AI marketing language
+ Multi-country delivery (Poland, Belarus) supports competitive pricing for smaller buyers
- AI/ML is a recently expanded practice area layered onto a longer-running general software development business
- Reported headcount varies by source (250 vs. 400+), worth confirming current team size directly
- Less brand recognition in AI/ML specifically compared to AI-first boutiques on this list

Who should choose ITRex Group?

ITRex Group is the right choice for mid-market companies combining AI/ML work with IoT or edge-device deployment..

Explicit focus on applied AI paired with intelligent-edge and IoT development, not just cloud-based ML.. Minimum engagement starts at $25K. Works best with clients in Manufacturing, Healthcare, Retail, Technology/SaaS.

Who should choose Belitsoft?

Belitsoft is the right choice for small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing..

21 years as a custom software development firm now expanding deliberately into generative AI and predictive analytics.. Minimum engagement starts at $15K. Works best with clients in Healthcare, Financial Services, Technology/SaaS.

Decision matrix: ITRex Group vs Belitsoft

Your situation Recommended choice
You need full-ownership delivery on a defined project scope ITRex Group
You need a large dedicated team for an ongoing programme Check each company's engagement model
Your budget is at the lower end Belitsoft
You need specialist depth in a specific vertical ITRex Group
You need staff augmentation or team extension ITRex Group
You need consulting before committing to a build ITRex Group

Use case fit: ITRex Group vs Belitsoft

Use case ITRex Group fit Belitsoft fit Winner
AI models that need to run on or alongside IoT/edge hardware Strong Limited ITRex Group
Manufacturing predictive-maintenance projects combining sensor data and ML Strong Limited ITRex Group
Small-to-mid companies wanting a cost-effective partner for a forecasting or recommendation-engine build Limited Strong Belitsoft
Healthcare or finance clients needing predictive analytics added to an existing software product Limited Strong Belitsoft
Fixed-price build Limited Limited Both equally
Staff augmentation Strong Limited ITRex Group

Verdict: ITRex Group vs Belitsoft

ITRex Group (4.2/5) is the stronger overall choice for most Machine Learning Development projects. Explicit focus on applied AI paired with intelligent-edge and IoT development, not just cloud-based ML.. It is best for mid-market companies combining AI/ML work with IoT or edge-device deployment..

Belitsoft (3.9/5) is the better choice when small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing.. If your situation matches those criteria, Belitsoft is a competitive option.

Related comparisons

ITRex Group vs Belitsoft FAQ

Is ITRex Group better than Belitsoft?

ITRex Group (4.2/5) scores higher overall, but "better" depends on your use case. ITRex Group is better for mid-market companies combining AI/ML work with IoT or edge-device deployment.. Belitsoft is better for small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing..

How do ITRex Group and Belitsoft differ in pricing?

ITRex Group uses fixed project, time & material, staff augmentation pricing with a minimum engagement of $25K. Belitsoft uses fixed project and time & material pricing with a minimum engagement of $15K. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: ITRex Group or Belitsoft?

ITRex Group is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each agency before shortlisting.

What are the main differences between ITRex Group and Belitsoft?

ITRex Group's primary differentiator is: explicit focus on applied ai paired with intelligent-edge and iot development, not just cloud-based ml.. Belitsoft's primary differentiator is: 21 years as a custom software development firm now expanding deliberately into generative ai and predictive analytics.. They also differ in team size (201–500 vs 201–500), minimum engagement ($25K vs $15K), and primary industries served (Manufacturing, Healthcare vs Healthcare, Financial Services).

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