Top AI Development Agencies

Tensorway vs LeewayHertz: full comparison for 2026

Quick verdict

Tensorway (4.8/5) edges ahead of LeewayHertz (4.1/5) overall. Tensorway is the better choice for regulated industries needing certified AI delivery. LeewayHertz is the stronger option for buyers wanting broad AI service coverage in one agency. The right choice depends on your project size, budget, and required tech stack.

Tensorway vs LeewayHertz: head-to-head summary

Criterion Tensorway LeewayHertz
Founded 2019 2007
HQ Alicante, Spain San Francisco, United States
Team size 20-50 150-300
Rating 4.8 / 5 4.1 / 5
Primary differentiator Documented GDPR, HIPAA, ISO 9001, and ISO 27001 compliance on every engagement Backed by The Hackett Group's consulting network following its 2024 acquisition
Pricing model Fixed-scope project, dedicated team, or paid discovery phase Fixed project or dedicated team
Min. engagement Not disclosed Not disclosed
Primary tech stack Python, PyTorch, TensorFlow Python, PyTorch, OpenAI API
Industries served Legal, Private equity & finance, E-learning, Sports & media Financial services, Healthcare, Retail & e-commerce, Manufacturing

Tensorway vs LeewayHertz: overview

Tensorway

A longer-running Alicante, Spain software house with roughly 25 years of prior delivery history spun up Tensorway as a dedicated AI unit in 2019 rather than folding AI work into its existing generalist teams. The unit stays small on purpose, roughly 20-50 deep learning architects, MLOps engineers, ML engineers, and QAs, and every engagement is documented against GDPR, HIPAA, ISO 9001, and ISO 27001 standards, a compliance bar most agencies on this list don't publish. Named work includes an agentic tutor that grades essays for an Australian e-learning company, a legal document automation agent reported at roughly 90% accuracy for a US law practice (per company website; independently unverifiable), and a deal-sourcing agent for a Swedish private equity firm.

LeewayHertz

LeewayHertz has operated from San Francisco since 2007, though its ownership changed in September 2024 when The Hackett Group acquired the company. That's relevant to anyone evaluating long-term strategic direction, since the agency now answers to a larger consulting parent. Public employee counts have also shifted, from roughly 300 in earlier reporting to about 182 by mid-2026, worth confirming directly given the volume of content marketing the agency publishes relative to its actual team size.

Services and capabilities: Tensorway vs LeewayHertz

Capability Tensorway LeewayHertz
Generative AI
Machine learning
AI agents
MLOps
AI consulting
Fixed-price projects
Dedicated team model

Tech stack comparison: Tensorway vs LeewayHertz

Framework / platform Tensorway LeewayHertz
Python
PyTorch
TensorFlow N/A
LangChain
AWS
Azure N/A
Kubernetes N/A

Pricing comparison: Tensorway vs LeewayHertz

Criterion Tensorway LeewayHertz
Minimum engagement Not disclosed Not disclosed
Engagement models Fixed project, Dedicated team, Discovery phase Fixed project, Dedicated team
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Tensorway vs LeewayHertz

Dimension Tensorway LeewayHertz
Best company size Startup to mid-market Startup to mid-market
Best industries Legal, Private equity & finance, E-learning Financial services, Healthcare, Retail & e-commerce
Best use cases Automating a compliance-sensitive manual process in legal, finance, or healthcare., Needing an agency that documents its own compliance posture rather than just claiming it. Consolidating several AI workstreams under one vendor relationship., Working with an agency backed by a larger consulting parent for enterprise credibility.
Typical project type Fixed project Fixed project

Tensorway vs LeewayHertz: pros and cons

Tensorway
+ Compliance certification (GDPR, HIPAA, ISO 9001, ISO 27001) is standard, not a premium add-on.
+ AI-only team structure avoids the diluted focus of a generalist agency with an AI side practice.
+ Draws on its parent company's 25-year delivery track record without losing AI specialization.
+ Transfers full IP ownership to the client at project close.
+ Ships an initial working prototype within weeks based on documented case work.
- A 20-50 person team caps parallel capacity for very large enterprise rollouts
- Case studies published so far lean toward early-production scale, not massive deployments
LeewayHertz
+ Broad coverage across generative AI, machine learning, and AI agents under one agency.
+ The Hackett Group acquisition adds access to a larger consulting and benchmarking network.
+ Close to two decades of operating history predating the current AI boom.
+ High volume of published technical content makes its approach easy to evaluate before hiring.
- Now owned by The Hackett Group as of 2024, which may shift long-term positioning
- Reported headcount has roughly halved across recent public data, worth confirming directly

Who should choose Tensorway?

A typical fit: automating a compliance-sensitive manual process in legal, finance, or healthcare.

Documented GDPR, HIPAA, ISO 9001, and ISO 27001 compliance on every engagement. Minimum engagement is not publicly disclosed. Works best with clients in Legal, Private equity & finance, E-learning, Sports & media.

Who should choose LeewayHertz?

A typical fit: consolidating several AI workstreams under one vendor relationship.

Backed by The Hackett Group's consulting network following its 2024 acquisition. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Healthcare, Retail & e-commerce, Manufacturing.

Decision matrix: Tensorway vs LeewayHertz

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Tensorway
You need a large dedicated team for an ongoing programme Tensorway
Your budget is at the lower end Compare: Tensorway (Not disclosed) vs LeewayHertz (Not disclosed)
You need specialist depth in a specific vertical Tensorway
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Tensorway

Use case fit: Tensorway vs LeewayHertz

Use case Tensorway fit LeewayHertz fit Winner
Automating a compliance-sensitive manual process in legal, finance, or healthcare. Strong Limited Tensorway
Needing an agency that documents its own compliance posture rather than just claiming it. Strong Limited Tensorway
Consolidating several AI workstreams under one vendor relationship. Limited Strong LeewayHertz
Working with an agency backed by a larger consulting parent for enterprise credibility. Limited Strong LeewayHertz
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: Tensorway vs LeewayHertz

Tensorway (4.8/5) is the stronger overall choice for most AI Development projects. Documented GDPR, HIPAA, ISO 9001, and ISO 27001 compliance on every engagement.

LeewayHertz (4.1/5) is worth a look if you need working with an agency backed by a larger consulting parent for enterprise credibility. If your situation matches that, LeewayHertz is a competitive option.

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Tensorway vs LeewayHertz FAQ

Is Tensorway better than LeewayHertz?

Tensorway (4.8/5) scores higher overall, but "better" depends on your use case. Tensorway's strongest advantage: compliance certification (GDPR, HIPAA, ISO 9001, ISO 27001) is standard, not a premium add-on. LeewayHertz's strongest advantage: broad coverage across generative AI, machine learning, and AI agents under one agency.

How do Tensorway and LeewayHertz differ in pricing?

Tensorway uses fixed-scope project, dedicated team, or paid discovery phase pricing. LeewayHertz uses fixed project or dedicated team pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Tensorway 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 agency before shortlisting.

What are the main differences between Tensorway and LeewayHertz?

Tensorway's primary differentiator is: documented GDPR, HIPAA, ISO 9001, and ISO 27001 compliance on every engagement. LeewayHertz's primary differentiator is: backed by The Hackett Group's consulting network following its 2024 acquisition. They also differ in team size (20-50 vs 150-300), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Legal, Private equity & finance vs Financial services, Healthcare).

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