Best Machine Learning Development Agencies

Persistent Systems vs Belitsoft: full comparison for 2026

Last updated: July 2026

Quick verdict

Belitsoft (3.9/5) edges ahead of Persistent Systems (3.8/5) overall. Belitsoft is the better choice for small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing.. Persistent Systems is the stronger option for very large enterprises that want AI/ML delivered by the same vendor already running their broader IT estate.. The right choice depends on your project size, budget, and required tech stack.

Persistent Systems vs Belitsoft: head-to-head summary

Criterion Persistent Systems Belitsoft
Founded 1990 2004
HQ Pune, India Warsaw, Poland
Team size 10,000+ 201–500
Rating 3.8 / 5 3.9 / 5
Best for Very large enterprises that want AI/ML delivered by the same vendor already running their broader IT estate. Small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing.
Pricing model Managed services and fixed project Fixed project and Time & Material
Min. engagement Not published $15K
Primary tech stack Python, Azure OpenAI, AWS Python, Scikit-learn, AWS
Industries served Financial Services, Healthcare, Technology/SaaS, Government Healthcare, Financial Services, Technology/SaaS

Persistent Systems vs Belitsoft: overview

Persistent Systems

Persistent Systems is an Indian multinational technology company founded in 1990 by Anand Deshpande, headquartered in Pune, with roughly 24,600 employees as of March 2025. Its AI/ML offerings, including the Persistent GenAI Hub, sit within a much larger portfolio spanning enterprise software, cloud, and digital engineering services rather than being the company's core specialization.

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: Persistent Systems vs Belitsoft

Capability Persistent Systems 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: Persistent Systems vs Belitsoft

Framework / platform Persistent Systems Belitsoft
Python
TensorFlow N/A 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: Persistent Systems vs Belitsoft

Criterion Persistent Systems Belitsoft
Minimum engagement Not published $15K
Engagement models Managed services, Fixed project, Staff augmentation Fixed project, Time & Material
Rate transparency Not public Minimum disclosed
Price tier Enterprise / not published Accessible

Target audience comparison: Persistent Systems vs Belitsoft

Dimension Persistent Systems Belitsoft
Best company size Enterprise Startup to mid-market
Best industries Financial Services, Healthcare, Technology/SaaS Healthcare, Financial Services, Technology/SaaS
Best use cases Enterprises already using Persistent for core IT services wanting to add AI/ML from the same vendor, Very large, multi-year digital transformation programs where AI is one workstream among many 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 Managed services Fixed project

Persistent Systems vs Belitsoft: pros and cons

Persistent Systems
+ 35 years of operating history and one of the largest headcounts on this list (24,000+)
+ AI capability delivered alongside a company's existing broader IT services relationship, reducing vendor sprawl
+ 16,000+ AI-trained staff cited internally, suggesting significant AI upskilling investment (per company website)
+ Public-company scale supports very large, multi-year enterprise transformation programs
- AI/ML is one offering within a much larger, more generalist IT services portfolio rather than the firm's core focus
- Buyers seeking cutting-edge ML specialization may find deeper expertise at AI-first boutiques on this list
- Very large organization can mean slower response times and more layered account management than smaller firms
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 Persistent Systems?

Persistent Systems is the right choice for very large enterprises that want AI/ML delivered by the same vendor already running their broader IT estate..

Enterprise-wide scale (24,000+ employees) supporting AI/ML as part of a full IT services portfolio, not a standalone specialty.. Minimum engagement starts at Not published. Works best with clients in Financial Services, Healthcare, Technology/SaaS, Government.

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: Persistent Systems vs Belitsoft

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Persistent Systems
You need a large dedicated team for an ongoing programme Check each company's engagement model
Your budget is at the lower end Compare: Persistent Systems (Not published) vs Belitsoft ($15K)
You need specialist depth in a specific vertical Persistent Systems
You need staff augmentation or team extension Persistent Systems
You need consulting before committing to a build Persistent Systems

Use case fit: Persistent Systems vs Belitsoft

Use case Persistent Systems fit Belitsoft fit Winner
Enterprises already using Persistent for core IT services wanting to add AI/ML from the same vendor Strong Limited Persistent Systems
Very large, multi-year digital transformation programs where AI is one workstream among many Strong Limited Persistent Systems
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 Limited Limited Both equally

Verdict: Persistent Systems vs Belitsoft

Belitsoft (3.9/5) is the stronger overall choice for most Machine Learning Development projects. 21 years as a custom software development firm now expanding deliberately into generative AI and predictive analytics.. It is best for small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing..

Persistent Systems (3.8/5) is the better choice when very large enterprises that want AI/ML delivered by the same vendor already running their broader IT estate.. If your situation matches those criteria, Persistent Systems is a competitive option.

Related comparisons

Persistent Systems vs Belitsoft FAQ

Is Persistent Systems better than Belitsoft?

Belitsoft (3.9/5) scores higher overall, but "better" depends on your use case. Persistent Systems is better for very large enterprises that want AI/ML delivered by the same vendor already running their broader IT estate.. Belitsoft is better for small-to-mid companies wanting AI/ML added to a broader custom software development engagement at accessible pricing..

How do Persistent Systems and Belitsoft differ in pricing?

Persistent Systems uses managed services and fixed project pricing with a minimum engagement of Not published. 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: Persistent Systems or Belitsoft?

Belitsoft 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 Persistent Systems and Belitsoft?

Persistent Systems's primary differentiator is: enterprise-wide scale (24,000+ employees) supporting ai/ml as part of a full it services portfolio, not a standalone specialty.. 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 (10,000+ vs 201–500), minimum engagement (Not published vs $15K), and primary industries served (Financial Services, Healthcare vs Healthcare, Financial Services).

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