Best AI Staff Augmentation Companies

Toptal vs LeewayHertz: full comparison for 2026

Quick verdict

Toptal (4.2/5) edges ahead of LeewayHertz (3.6/5) overall. Toptal is the better choice for short engagements with one senior AI specialist. 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.

Toptal vs LeewayHertz: head-to-head summary

Criterion Toptal LeewayHertz
Founded 2010 2007
HQ San Francisco, California, USA (remote-first) San Francisco, California, USA
Team size 20,000+ network (per company) 100–250 (sources vary)
Rating 4.2 / 5 3.6 / 5
Primary differentiator A heavily screened freelance pool that can supply one senior expert quickly GenAI app development backed by a public consulting parent
Pricing model Hourly or weekly freelance billing; $100–$149/hr (Clutch average); no-risk trial period Project pricing and hire-a-developer rates; rates on request
Min. engagement $50,000+ typical project size (Clutch) Not published
Primary tech stack Python, PyTorch, TensorFlow Python, LangChain, OpenAI
Industries served Software & SaaS, Financial services, Media, Healthcare & life sciences Financial services, Retail & e-commerce, Software & SaaS

Toptal vs LeewayHertz: overview

Toptal

Toptal was founded in 2010 and lists a San Francisco address, though it operates as a fully remote company. It is a freelance marketplace that says it accepts only the top 3% of applicants into a network of more than 20,000 professionals across engineering, design and finance. Clutch lists an average rate of $100 to $149 per hour and a typical project minimum of $50,000. Toptal matches individual contractors and does not employ the engineers it places.

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: Toptal vs LeewayHertz

Capability Toptal 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: Toptal vs LeewayHertz

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

Pricing comparison: Toptal vs LeewayHertz

Criterion Toptal LeewayHertz
Minimum engagement $50,000+ typical project size (Clutch) Not published
Engagement models Part-time fractional experts, Full-time dedicated engineers, Trial period Managed delivery, Full-time dedicated engineers
Rate transparency Minimum disclosed Not public
Price tier Mid-market Mid-market

Target audience comparison: Toptal vs LeewayHertz

Dimension Toptal LeewayHertz
Best company size Startup to mid-market Startup to mid-market
Best industries Software & SaaS, Financial services, Media Financial services, Retail & e-commerce, Software & SaaS
Best use cases Hiring an ML architect for a six-week design review, Getting a second opinion on an LLM evaluation approach Adding a GenAI developer to a Hackett-led consulting program, Building a RAG assistant for internal documents
Typical project type Part-time fractional experts Managed delivery

Toptal vs LeewayHertz: pros and cons

Toptal
+ Strict acceptance screening filters out most weak candidates
+ Part-time and hourly arrangements suit advisory or review work
+ A trial period lowers the cost of a bad match
- Clutch's $100–$149 hourly average is high for long-term team building
- Freelancers can leave between engagements, taking system knowledge with them
- General screening is not specific to ML depth
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 Toptal?

A typical fit: hiring an ML architect for a six-week design review.

A heavily screened freelance pool that can supply one senior expert quickly. Minimum engagement starts at $50,000+ typical project size (Clutch). Works best with clients in Software & SaaS, Financial services, Media, Healthcare & life sciences.

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: Toptal vs LeewayHertz

Your situation Recommended choice
You need a dedicated team for a long programme Confirm how many engineers each can staff at once
You want the supplier to own delivery as well as staffing LeewayHertz
You need one expert part-time Toptal
You want to test an engineer before signing for months Toptal
Your budget is at the lower end Compare: Toptal ($50,000+ typical project size (Clutch)) 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 Toptal

Use case fit: Toptal vs LeewayHertz

Use case Toptal fit LeewayHertz fit Winner
Hiring an ML architect for a six-week design review Strong Limited Toptal
Getting a second opinion on an LLM evaluation approach Strong Limited Toptal
Adding a GenAI developer to a Hackett-led consulting program Limited Strong LeewayHertz
Building a RAG assistant for internal documents Limited Strong LeewayHertz

Verdict: Toptal vs LeewayHertz

Toptal (4.2/5) is the stronger overall choice for most AI Staff Augmentation projects. A heavily screened freelance pool that can supply one senior expert quickly.

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

Toptal vs LeewayHertz FAQ

Is Toptal better than LeewayHertz?

Toptal (4.2/5) scores higher overall, but "better" depends on your use case. Toptal's strongest advantage: strict acceptance screening filters out most weak candidates. LeewayHertz's strongest advantage: long experience shipping GenAI applications.

How do Toptal and LeewayHertz differ in pricing?

Toptal uses hourly or weekly freelance billing; $100–$149/hr (clutch average); no-risk trial period pricing with a minimum engagement of $50,000+ typical project size (Clutch). 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: Toptal 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 Toptal and LeewayHertz?

Toptal's primary differentiator is: a heavily screened freelance pool that can supply one senior expert quickly. LeewayHertz's primary differentiator is: GenAI app development backed by a public consulting parent. They also differ in team size (20,000+ network (per company) vs 100–250 (sources vary)), minimum engagement ($50,000+ typical project size (Clutch) vs Not published), and primary industries served (Software & SaaS, Financial services vs Financial services, Retail & e-commerce).

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