Best Machine Learning Development Companies

Tensorway vs LeewayHertz: full comparison for 2026

Last updated: July 2026

Quick verdict

Tensorway (4.8/5) edges ahead of LeewayHertz (4.6/5) overall. Tensorway is the better choice for teams needing a dedicated ML specialist boutique with full-stack delivery from strategy through production MLOps. LeewayHertz is the stronger option for enterprises seeking end-to-end AI/ML product delivery with a proven Fortune 500 client base and strong US presence. 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, CA, USA
Team size 28+ 182–300
Rating 4.8 / 5 4.6 / 5
Best for Teams needing a dedicated ML specialist boutique with full-stack delivery from strategy through production MLOps Enterprises seeking end-to-end AI/ML product delivery with a proven Fortune 500 client base and strong US presence
Pricing model T&M, Fixed project, Dedicated team Fixed project, T&M, Dedicated team
Min. engagement $15K $30K
Primary tech stack TensorFlow, PyTorch, Keras TensorFlow, PyTorch, OpenAI GPT
Industries served healthcare, finance, retail, manufacturing, entertainment fintech, healthcare, retail, logistics, media

Tensorway vs LeewayHertz: overview

Tensorway

Tensorway is a machine learning development company founded in 2019 and headquartered in Alicante, Spain with additional offices in San Mateo, California. The company emerged from Anadea, a software firm with 25 years of delivery history, and operates as a dedicated ML practice with 28+ specialists spanning data science, ML engineering, MLOps, and QA. Tensorway delivers custom ML solutions across predictive analytics, NLP, computer vision, and LLM integration for clients in healthcare, finance, retail, and manufacturing. Listed among top AI companies in Spain by Clutch, The Manifest, GoodFirms, and TechBehemoths.

LeewayHertz

LeewayHertz is an AI and machine learning development company founded in 2007 and headquartered in San Francisco, California. The company employs approximately 182–300 professionals and has built a strong delivery track record with enterprise clients including ESPN, Siemens, and 3M. In September 2024, LeewayHertz was acquired by The Hackett Group, a business and technology management consulting firm. The acquisition may affect the company's autonomy and ML-specialist focus over time (per company website; independently unverifiable).

Services and capabilities: Tensorway vs LeewayHertz

Capability Tensorway LeewayHertz
Custom ML development
ML consulting
Deep learning
NLP
Computer vision
MLOps
Predictive analytics
Generative AI
Data engineering
Staff augmentation

Tech stack comparison: Tensorway vs LeewayHertz

Framework / platform Tensorway LeewayHertz
TensorFlow
PyTorch
Scikit-Learn N/A
LangChain
AWS SageMaker N/A
Azure ML N/A
GCP Vertex AI N/A
Kubernetes N/A
Apache Spark N/A N/A
MLflow N/A N/A

Pricing comparison: Tensorway vs LeewayHertz

Criterion Tensorway LeewayHertz
Minimum engagement $15K $30K
Engagement models Fixed project, T&M, Dedicated team Fixed project, T&M, Dedicated team
Rate transparency Minimum disclosed Minimum disclosed
Price tier Accessible Accessible

Target audience comparison: Tensorway vs LeewayHertz

Dimension Tensorway LeewayHertz
Best company size Startup to mid-market Startup to mid-market
Best industries healthcare, finance, retail fintech, healthcare, retail
Best use cases Custom predictive analytics model development and deployment to production, LLM integration and RAG pipeline development using LangChain or LlamaIndex Enterprise AI product development from strategy through production deployment, Custom LLM integration and AI agent development for Fortune 500 workflows
Typical project type Fixed project Fixed project

Tensorway vs LeewayHertz: pros and cons

Tensorway
+ Entire team is dedicated to ML — no generalist staff repurposed from other practices
+ Covers the full ML lifecycle: strategy, data engineering, model development, deployment, and MLOps support
+ Strong LLM and generative AI capability with LangChain, LangGraph, and LlamaIndex in production
+ Multiple pricing models including fixed-price PoC development, making it accessible for early validation
+ Recognized independently by Clutch, GoodFirms, and TechBehemoths as a top AI company in Spain
+ Low minimum engagement ($15K) compared to US-equivalent boutiques with similar specialization depth
- Smaller team of 28+ limits parallel capacity for very large-scale programmes requiring 50+ ML engineers simultaneously
- Spain/California time zone split may require coordination effort for US East Coast clients
LeewayHertz
+ Confirmed enterprise client references including ESPN, Siemens, and 3M validate production ML delivery
+ Strong generative AI and LLM capability alongside classical ML engineering
+ US-based client-facing team with technical delivery across time zones
+ Product-centric engineering approach — ships complete systems, not just models
+ Broad ML coverage from predictive analytics to NLP and AI agent frameworks
- Acquired by The Hackett Group in September 2024 — future strategic direction and ML focus may change
- Mid-size team limits parallel capacity for very large enterprise programmes
- Minimum engagement higher than boutique-tier alternatives

Who should choose Tensorway?

Tensorway is the right choice for teams needing a dedicated ML specialist boutique with full-stack delivery from strategy through production MLOps.

ML-only focus with a dedicated specialist team backed by 25 years of Anadea software delivery infrastructure — unusually deep for a firm of this size. Minimum engagement starts at $15K. Works best with clients in healthcare, finance, retail, manufacturing, entertainment.

Who should choose LeewayHertz?

LeewayHertz is the right choice for enterprises seeking end-to-end AI/ML product delivery with a proven Fortune 500 client base and strong US presence.

Product-centric AI delivery culture with verified Fortune 500 client references including ESPN, Siemens, and 3M — now operating within The Hackett Group. Minimum engagement starts at $30K. Works best with clients in fintech, healthcare, retail, logistics, media.

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 Tensorway
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
Custom predictive analytics model development and deployment to production Strong Strong Both equally
LLM integration and RAG pipeline development using LangChain or LlamaIndex Strong Strong Both equally
Enterprise AI product development from strategy through production deployment Limited Strong LeewayHertz
Custom LLM integration and AI agent development for Fortune 500 workflows Strong Strong Both equally
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 Machine Learning Development projects. ML-only focus with a dedicated specialist team backed by 25 years of Anadea software delivery infrastructure — unusually deep for a firm of this size. It is best for teams needing a dedicated ML specialist boutique with full-stack delivery from strategy through production MLOps.

LeewayHertz (4.6/5) is the better choice when enterprises seeking end-to-end AI/ML product delivery with a proven Fortune 500 client base and strong US presence. If your situation matches those criteria, LeewayHertz is a competitive option.

Related comparisons

Tensorway vs LeewayHertz FAQ

Is Tensorway better than LeewayHertz?

Tensorway (4.8/5) scores higher overall, but "better" depends on your use case. Tensorway is better for teams needing a dedicated ML specialist boutique with full-stack delivery from strategy through production MLOps. LeewayHertz is better for enterprises seeking end-to-end AI/ML product delivery with a proven Fortune 500 client base and strong US presence.

How do Tensorway and LeewayHertz differ in pricing?

Tensorway uses t&m, fixed project, dedicated team pricing with a minimum engagement of $15K. LeewayHertz uses fixed project, t&m, dedicated team pricing with a minimum engagement of $30K. 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 company before shortlisting.

What are the main differences between Tensorway and LeewayHertz?

Tensorway's primary differentiator is: ml-only focus with a dedicated specialist team backed by 25 years of anadea software delivery infrastructure — unusually deep for a firm of this size. LeewayHertz's primary differentiator is: product-centric ai delivery culture with verified fortune 500 client references including espn, siemens, and 3m — now operating within the hackett group. They also differ in team size (28+ vs 182–300), minimum engagement ($15K vs $30K), and primary industries served (healthcare, finance vs fintech, healthcare).

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