Best Machine Learning Development Agencies

ITRex Group vs Persistent Systems: full comparison for 2026

Last updated: July 2026

Quick verdict

ITRex Group (4.2/5) edges ahead of Persistent Systems (3.8/5) overall. ITRex Group is the better choice for mid-market companies combining AI/ML work with IoT or edge-device deployment.. 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.

ITRex Group vs Persistent Systems: head-to-head summary

Criterion ITRex Group Persistent Systems
Founded 2009 1990
HQ Santa Monica, California, USA Pune, India
Team size 201–500 10,000+
Rating 4.2 / 5 3.8 / 5
Best for Mid-market companies combining AI/ML work with IoT or edge-device deployment. Very large enterprises that want AI/ML delivered by the same vendor already running their broader IT estate.
Pricing model Fixed project, Time & Material, staff augmentation Managed services and fixed project
Min. engagement $25K Not published
Primary tech stack Python, TensorFlow, AWS IoT Python, Azure OpenAI, AWS
Industries served Manufacturing, Healthcare, Retail, Technology/SaaS Financial Services, Healthcare, Technology/SaaS, Government

ITRex Group vs Persistent Systems: 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.

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.

Services and capabilities: ITRex Group vs Persistent Systems

Capability ITRex Group Persistent Systems
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 Persistent Systems

Framework / platform ITRex Group Persistent Systems
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 Persistent Systems

Criterion ITRex Group Persistent Systems
Minimum engagement $25K Not published
Engagement models Fixed project, Time & Material, Staff augmentation Managed services, Fixed project, Staff augmentation
Rate transparency Minimum disclosed Not public
Price tier Accessible Enterprise / not published

Target audience comparison: ITRex Group vs Persistent Systems

Dimension ITRex Group Persistent Systems
Best company size Startup to mid-market Enterprise
Best industries Manufacturing, Healthcare, Retail Financial Services, Healthcare, 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 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
Typical project type Fixed project Managed services

ITRex Group vs Persistent Systems: 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
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

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 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.

Decision matrix: ITRex Group vs Persistent Systems

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 Compare: ITRex Group ($25K) vs Persistent Systems (Not published)
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 Persistent Systems

Use case ITRex Group fit Persistent Systems fit Winner
AI models that need to run on or alongside IoT/edge hardware Strong Strong Both equally
Manufacturing predictive-maintenance projects combining sensor data and ML Strong Limited ITRex Group
Enterprises already using Persistent for core IT services wanting to add AI/ML from the same vendor Limited Strong Persistent Systems
Very large, multi-year digital transformation programs where AI is one workstream among many Limited Strong Persistent Systems
Fixed-price build Limited Limited Both equally
Staff augmentation Strong Limited ITRex Group

Verdict: ITRex Group vs Persistent Systems

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..

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

ITRex Group vs Persistent Systems FAQ

Is ITRex Group better than Persistent Systems?

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

How do ITRex Group and Persistent Systems differ in pricing?

ITRex Group uses fixed project, time & material, staff augmentation pricing with a minimum engagement of $25K. Persistent Systems uses managed services and fixed project 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: ITRex Group or Persistent Systems?

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 Persistent Systems?

ITRex Group's primary differentiator is: explicit focus on applied ai paired with intelligent-edge and iot development, not just cloud-based ml.. 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.. They also differ in team size (201–500 vs 10,000+), minimum engagement ($25K vs Not published), and primary industries served (Manufacturing, Healthcare vs Financial Services, Healthcare).

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