Best AI Staff Augmentation Companies

EPAM Systems vs LeewayHertz: full comparison for 2026

Quick verdict

EPAM Systems (4.6/5) edges ahead of LeewayHertz (3.6/5) overall. EPAM Systems is the better choice for large enterprises, regulated industries, multi-team AI programs. LeewayHertz is the stronger option for hackett Group clients adding GenAI developers. The right choice depends on your project size, budget, and required tech stack.

EPAM Systems vs LeewayHertz: head-to-head summary

Criterion EPAM Systems LeewayHertz
Founded 1993 2007
HQ Newtown, Pennsylvania, USA San Francisco, California, USA
Team size 61,000+ 100–250 (sources vary)
Rating 4.6 / 5 3.6 / 5
Primary differentiator Thousands of certified GenAI engineers inside a publicly listed firm with enterprise security and procurement processes GenAI app development backed by a public consulting parent
Pricing model Time and materials for augmented engineers; dedicated team and managed program contracts; rates on request Project pricing and hire-a-developer rates; rates on request
Min. engagement Not published Not published
Primary tech stack Python, PyTorch, TensorFlow Python, LangChain, OpenAI
Industries served Financial services, Healthcare & life sciences, Retail & e-commerce, Software & SaaS, Travel, Manufacturing Financial services, Retail & e-commerce, Software & SaaS

EPAM Systems vs LeewayHertz: overview

EPAM Systems

EPAM Systems was founded in 1993 and is headquartered in Newtown, Pennsylvania, with roughly 61,000 employees across delivery centers in Europe, the Americas and Asia. It is a public company listed on the New York Stock Exchange. On its Q2 2026 earnings call, management said EPAM had more than 5,700 Anthropic-certified engineers and was among the five largest certified partners worldwide, with AI-native work making up about 11% of revenue. EPAM employs its engineers directly and sells them as augmented capacity, dedicated teams or managed programs, though most large accounts end up in the managed model.

LeewayHertz

LeewayHertz was founded in 2007 and lists a San Francisco address, with much of its staff in India. Headcount estimates range from roughly 60 to 500. The Hackett Group acquired it in September 2024 for $7.8 million in purchase consideration, according to Hackett's SEC filings, and the two set up a joint venture called ZBrain XPLR. Its main business is building GenAI applications, and it hires out engineers as a secondary service.

Services and capabilities: EPAM Systems vs LeewayHertz

Capability EPAM Systems LeewayHertz
LLM / GenAI engineers ✓ ✓
MLOps & deployment ✓ ✗
Computer vision ✗ ✗
Data engineering ✓ ✗
AI agent development ✓ ✓
Fractional / part-time experts ✗ ✗
Risk-free trial period ✗ ✗
Nearshore time-zone overlap ✗ ✗

Tech stack comparison: EPAM Systems vs LeewayHertz

Framework / platform EPAM Systems LeewayHertz
PyTorch ✓ N/A
TensorFlow ✓ N/A
LangChain ✓ ✓
Hugging Face N/A ✓
OpenAI ✓ ✓
AWS ✓ ✓
Azure ✓ N/A
Databricks ✓ N/A
MLflow N/A N/A
Kubernetes ✓ N/A

Pricing comparison: EPAM Systems vs LeewayHertz

Criterion EPAM Systems LeewayHertz
Minimum engagement Not published Not published
Engagement models Full-time dedicated engineers, Dedicated team, Managed delivery Managed delivery, Full-time dedicated engineers
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: EPAM Systems vs LeewayHertz

Dimension EPAM Systems LeewayHertz
Best company size Mid-market to enterprise Startup to mid-market
Best industries Financial services, Healthcare & life sciences, Retail & e-commerce Financial services, Retail & e-commerce, Software & SaaS
Best use cases Adding a 15-person GenAI squad to a bank's existing platform team, Rolling out agentic workflows across several business units under one master agreement Adding a GenAI developer to a Hackett-led consulting program, Building a RAG assistant for internal documents
Typical project type Full-time dedicated engineers Managed delivery

EPAM Systems vs LeewayHertz: pros and cons

EPAM Systems
+ A Q2 2026 earnings call put its Anthropic-certified engineer count above 5,700, the largest verified GenAI bench on this list
+ Public-company reporting, audited financials and mature security reviews make vendor onboarding easier at banks and insurers
+ Can staff ten or more AI engineers in parallel across several time zones without running out of senior people
+ Deep data-platform practice means LLM work and the data engineering under it can come from one supplier
- Rates are among the highest on this list and are only shared after scoping
- Small requests for one or two engineers rarely get the same attention as large programs
- Engagements tend to drift toward managed delivery, which moves decisions away from your own team
LeewayHertz
+ Long experience shipping GenAI applications
+ Hackett ownership adds a consulting channel
+ Builds agents and RAG systems
- Acquired by The Hackett Group in 2024, so priorities may follow the parent's consulting work
- Headcount estimates vary widely
- Heavy content marketing makes independent assessment harder

Who should choose EPAM Systems?

A typical fit: adding a 15-person GenAI squad to a bank's existing platform team.

Thousands of certified GenAI engineers inside a publicly listed firm with enterprise security and procurement processes. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Healthcare & life sciences, Retail & e-commerce, Software & SaaS, Travel, Manufacturing.

Who should choose LeewayHertz?

A typical fit: adding a GenAI developer to a Hackett-led consulting program.

GenAI app development backed by a public consulting parent. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail & e-commerce, Software & SaaS.

Decision matrix: EPAM Systems vs LeewayHertz

Your situation Recommended choice
You need a dedicated team for a long programme EPAM Systems
You want the supplier to own delivery as well as staffing Both; EPAM Systems rates higher overall
You need one expert part-time Neither lists part-time experts; ask about reduced hours
You want to test an engineer before signing for months Neither publishes a trial; ask for a short first term
Your budget is at the lower end Compare: EPAM Systems (Not published) vs LeewayHertz (Not published)
You need overlap with U.S. working hours Neither is nearshore; agree overlap hours up front
You need specialist depth in a specific vertical EPAM Systems

Use case fit: EPAM Systems vs LeewayHertz

Use case EPAM Systems fit LeewayHertz fit Winner
Adding a 15-person GenAI squad to a bank's existing platform team Strong Strong Both equally
Rolling out agentic workflows across several business units under one master agreement Strong Limited EPAM Systems
Adding a GenAI developer to a Hackett-led consulting program Strong Strong Both equally
Building a RAG assistant for internal documents Limited Strong LeewayHertz

Verdict: EPAM Systems vs LeewayHertz

EPAM Systems (4.6/5) is the stronger overall choice for most AI Staff Augmentation projects. Thousands of certified GenAI engineers inside a publicly listed firm with enterprise security and procurement processes.

LeewayHertz (3.6/5) is worth a look if you need building a RAG assistant for internal documents. If your situation matches that, LeewayHertz is a competitive option.

Related comparisons

EPAM Systems vs LeewayHertz FAQ

Is EPAM Systems better than LeewayHertz?

EPAM Systems (4.6/5) scores higher overall, but "better" depends on your use case. EPAM Systems's strongest advantage: a Q2 2026 earnings call put its Anthropic-certified engineer count above 5,700, the largest verified GenAI bench on this list. LeewayHertz's strongest advantage: long experience shipping GenAI applications.

How do EPAM Systems and LeewayHertz differ in pricing?

EPAM Systems uses time and materials for augmented engineers; dedicated team and managed program contracts; rates on request pricing. LeewayHertz uses project pricing and hire-a-developer rates; rates on request pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: EPAM Systems or LeewayHertz?

LeewayHertz 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 EPAM Systems and LeewayHertz?

EPAM Systems's primary differentiator is: thousands of certified GenAI engineers inside a publicly listed firm with enterprise security and procurement processes. LeewayHertz's primary differentiator is: GenAI app development backed by a public consulting parent. They also differ in team size (61,000+ vs 100–250 (sources vary)), minimum engagement (Not published vs Not published), and primary industries served (Financial services, Healthcare & life sciences vs Financial services, Retail & e-commerce).

Verify all details directly with each company before making a decision.