LeewayHertz vs Existek: full comparison for 2026
Last updated: July 2026
Quick verdict
LeewayHertz (4.2/5) edges ahead of Existek (3.9/5) overall. LeewayHertz is the better choice for enterprises that want AI consulting backed by a publicly traded management-consulting parent (The Hackett Group).. Existek is the stronger option for mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service.. The right choice depends on your project size, budget, and required tech stack.
LeewayHertz vs Existek: head-to-head summary
| Criterion | LeewayHertz | Existek |
|---|---|---|
| Founded | 2007 | 2012 |
| HQ | San Francisco, California, United States | Bucharest, Romania |
| Team size | 200–300 | 50–249 |
| Rating | 4.2 / 5 | 3.9 / 5 |
| Best for | Enterprises that want AI consulting backed by a publicly traded management-consulting parent (The Hackett Group). | Mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service. |
| Pricing model | Project-based, retainer | Project-based, dedicated team |
| Min. engagement | Not published | $25,000+ |
| Primary tech stack | Python, LangChain, Hugging Face | Python, TensorFlow, AWS |
| Industries served | FinTech, Healthcare, Manufacturing, Retail & E-commerce | Healthcare, Oil & Gas, Education, Business Intelligence |
LeewayHertz vs Existek: overview
LeewayHertz
LeewayHertz was founded in 2007 by Akash Takyar and Viresh Bhathia and is headquartered in San Francisco, combining strategic AI advisory with engineering delivery and proprietary AI platforms. On September 23, 2024, LeewayHertz was acquired by The Hackett Group, a publicly traded management consulting firm, giving it access to Hackett's enterprise client relationships. Reported employee counts range from roughly 194 to 300, and as with any recently acquired firm, prospective clients should verify current team continuity.
Existek
Existek was founded in 2012 and operates with a 50–249 person team split across Bucharest, Romania and Vinnytsia, Ukraine, delivering custom software development, dedicated team staffing, and AI development services for clients in business intelligence, healthcare, oil & gas, and education. The company has been recognized by Clutch as a top developer in both Ukraine and Romania and holds a near-perfect 4.9 rating on the platform, with hourly rates of $50–$99/hr and a minimum project size of $25,000+. Its AI services page is comparatively general, offering less publicly documented technical specificity than boutique ML specialists in this list.
Services and capabilities: LeewayHertz vs Existek
| Capability | LeewayHertz | Existek |
|---|---|---|
| Custom ML Models | ✓ | ✓ |
| Computer Vision | ✗ | ✗ |
| NLP | ✗ | ✗ |
| MLOps | ✗ | ✗ |
| Generative AI | ✓ | ✗ |
| AI Consulting | ✓ | ✓ |
Tech stack comparison: LeewayHertz vs Existek
| Framework / platform | LeewayHertz | Existek |
|---|---|---|
| TensorFlow | N/A | ✓ |
| PyTorch | N/A | N/A |
| AWS | ✓ | ✓ |
| Azure | ✓ | N/A |
| Google Cloud | N/A | N/A |
| LangChain | ✓ | N/A |
| Hugging Face | ✓ | N/A |
| Kubernetes | N/A | N/A |
Pricing comparison: LeewayHertz vs Existek
| Criterion | LeewayHertz | Existek |
|---|---|---|
| Minimum engagement | Not published | $25,000+ |
| Engagement models | Project-based, Retainer, Dedicated team | Project-based, Dedicated team |
| Rate transparency | Not public | Minimum disclosed |
| Price tier | Mid-market | Mid-market |
Target audience comparison: LeewayHertz vs Existek
| Dimension | LeewayHertz | Existek |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | FinTech, Healthcare, Manufacturing | Healthcare, Oil & Gas, Education |
| Best use cases | Enterprise wants AI consulting from a firm now backed by a publicly traded management consultancy., Company needs generative AI or AI agent development with proprietary platform accelerators. | Mid-market company wants a Clutch-recognized offshore vendor with a $25K+ entry point for an AI-adjacent project., Oil & gas or business intelligence company needs custom software plus AI/ML from a single vendor. |
| Typical project type | Project-based | Project-based |
LeewayHertz vs Existek: pros and cons
| LeewayHertz | |
|---|---|
| + | 17 years of AI/software delivery history since 2007, well-established before its 2024 acquisition. |
| + | Now backed by The Hackett Group, a publicly traded management consulting firm, adding financial stability and enterprise client access. |
| + | Proprietary AI platform assets built pre-acquisition can shorten delivery timelines for common use cases. |
| - | September 2024 acquisition by The Hackett Group is recent enough that integration effects on pricing and delivery team stability are still unfolding. |
| - | Employee-count sources disagree meaningfully (194 vs. 300), so confirm current AI-delivery headcount directly. |
| Existek | |
|---|---|
| + | 4.9 near-perfect Clutch rating with top-developer recognition in both Ukraine and Romania. |
| + | $25,000+ minimum project size is more accessible than large enterprise-only vendors like EPAM. |
| + | 12+ years of operating history (since 2012) with dual-country delivery presence. |
| + | Serves niche industries (oil & gas, business intelligence) less commonly covered by boutique AI specialists. |
| - | Publicly available technical detail on Existek's specific AI/ML methodology is thinner than boutique specialists like Neurons Lab or Provectus. |
| - | AI development is one of several service lines (custom software, staff augmentation) rather than the firm's exclusive focus. |
Who should choose LeewayHertz?
LeewayHertz is the right choice for enterprises that want AI consulting backed by a publicly traded management-consulting parent (The Hackett Group)..
AI consultancy now operating as a Hackett Group company, combining startup-era agility with public-company backing.. Minimum engagement starts at Not published. Works best with clients in FinTech, Healthcare, Manufacturing, Retail & E-commerce.
Who should choose Existek?
Existek is the right choice for mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service..
4.9 Clutch rating with dual Ukraine/Romania Clutch top-developer recognition and a $25,000+ accessible entry point.. Minimum engagement starts at $25,000+. Works best with clients in Healthcare, Oil & Gas, Education, Business Intelligence.
Decision matrix: LeewayHertz vs Existek
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Both offer fixed-price models |
| You need a large dedicated team for an ongoing programme | LeewayHertz |
| Your budget is at the lower end | Compare: LeewayHertz (Not published) vs Existek ($25,000+) |
| You need specialist depth in a specific vertical | LeewayHertz |
| You need production MLOps support after model launch | Both offer MLOps support |
| You need consulting before committing to a build | LeewayHertz |
Use case fit: LeewayHertz vs Existek
| Use case | LeewayHertz fit | Existek fit | Winner |
|---|---|---|---|
| Enterprise wants AI consulting from a firm now backed by a publicly traded management consultancy. | Strong | Limited | LeewayHertz |
| Company needs generative AI or AI agent development with proprietary platform accelerators. | Strong | Strong | Both equally |
| Mid-market company wants a Clutch-recognized offshore vendor with a $25K+ entry point for an AI-adjacent project. | Limited | Strong | Existek |
| Oil & gas or business intelligence company needs custom software plus AI/ML from a single vendor. | Limited | Strong | Existek |
| Fixed-scope ML build | Limited | Limited | Both equally |
| Ongoing model retraining | Limited | Limited | Both equally |
Verdict: LeewayHertz vs Existek
LeewayHertz (4.2/5) is the stronger overall choice for most Machine Learning Development projects. AI consultancy now operating as a Hackett Group company, combining startup-era agility with public-company backing.. It is best for enterprises that want AI consulting backed by a publicly traded management-consulting parent (The Hackett Group)..
Existek (3.9/5) is the better choice when mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service.. If your situation matches those criteria, Existek is a competitive option.
Related comparisons
LeewayHertz vs Existek FAQ
Is LeewayHertz better than Existek?
LeewayHertz (4.2/5) scores higher overall, but "better" depends on your use case. LeewayHertz is better for enterprises that want AI consulting backed by a publicly traded management-consulting parent (The Hackett Group).. Existek is better for mid-market companies wanting a Clutch-recognized offshore development firm with AI as an add-on service..
How do LeewayHertz and Existek differ in pricing?
LeewayHertz uses project-based, retainer pricing with a minimum engagement of Not published. Existek uses project-based, dedicated team pricing with a minimum engagement of $25,000+. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: LeewayHertz or Existek?
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 LeewayHertz and Existek?
LeewayHertz's primary differentiator is: ai consultancy now operating as a hackett group company, combining startup-era agility with public-company backing.. Existek's primary differentiator is: 4.9 clutch rating with dual ukraine/romania clutch top-developer recognition and a $25,000+ accessible entry point.. They also differ in team size (200–300 vs 50–249), minimum engagement (Not published vs $25,000+), and primary industries served (FinTech, Healthcare vs Healthcare, Oil & Gas).
Last reviewed: July 2026. Verify all details directly with each company before making a decision.