Top AI Engineer Staffing Companies

deepsense.ai vs Harnham: full comparison for 2026

Quick verdict

deepsense.ai (4.6/5) edges ahead of Harnham (3.7/5) overall. deepsense.ai is the better choice for teams that need a senior ML researcher who can also put models into production. Harnham is the stronger option for companies hiring permanent data or ML staff in the UK or U.S. through a specialist agency. The right choice depends on your project size, budget, and required tech stack.

deepsense.ai vs Harnham: head-to-head summary

Criterion deepsense.ai Harnham
Founded 2014 2006
HQ Warsaw, Poland London, United Kingdom
Team size 100–200 100–500
Rating 4.6 / 5 3.7 / 5
Primary differentiator A research-heavy bench of about 120 employed AI specialists with ten years of production work Twenty years of recruiting only in data and analytics
Pricing model Team extension billed monthly per engineer; projects quoted separately; rates on request Placement fee for permanent hires; contractor day or hourly rates; rates on request
Min. engagement Not published Not published
Primary tech stack Python, PyTorch, TensorFlow Python, SQL, Spark
Industries served Manufacturing, Retail, Healthcare, Financial services, Technology Financial services, Retail, Healthcare, Media, Technology

deepsense.ai vs Harnham: overview

deepsense.ai

deepsense.ai has done AI work out of Warsaw since 2014, and its job listings describe a team of about 120 AI specialists who have delivered more than 200 commercial and research projects. Most of that team is employed directly, which matters if you want the same engineer for a year. The company sells team extension alongside its consulting work, and its recruiting ads ask for five or more years of production ML experience for senior roles. Strengths cluster around LLM and RAG systems, computer vision, defect detection and models that run on edge devices.

Harnham

Harnham has recruited for data and analytics roles since 2006 from London, with offices in the U.S. including New York and San Francisco. It places data engineers, data scientists and ML engineers on contract or permanent terms and runs a graduate training arm, Rockborne. As a recruitment agency, it screens through consultants who specialise in data hiring rather than through practising engineers, and contractors are not managed after placement the way a staffing firm's employees are. That makes it better for permanent hires than for managed augmentation.

Services and capabilities: deepsense.ai vs Harnham

Capability deepsense.ai Harnham
ML engineers ✓ ✓
LLM / GenAI engineers ✓ ✗
AI agent developers ✗ ✗
MLOps engineers ✓ ✗
Computer vision engineers ✓ ✗
NLP engineers ✗ ✗
Data engineers ✗ ✓
Engineer-led technical screen ✓ ✗
Fractional / part-time experts ✗ ✗
Trial before commitment ✗ ✗
Nearshore time-zone overlap ✗ ✗
Direct hire option ✗ ✓

Tech stack comparison: deepsense.ai vs Harnham

Framework / platform deepsense.ai Harnham
PyTorch ✓ N/A
TensorFlow ✓ N/A
LangChain ✓ N/A
Hugging Face ✓ N/A
OpenAI N/A N/A
AWS ✓ ✓
Azure ✓ ✓
Google Cloud ✓ N/A
Databricks N/A ✓
Kubernetes ✓ N/A

Pricing comparison: deepsense.ai vs Harnham

Criterion deepsense.ai Harnham
Minimum engagement Not published Not published
Engagement models Dedicated engineer, Dedicated team, Project delivery Direct hire, Contract-to-hire, Freelance contract
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: deepsense.ai vs Harnham

Dimension deepsense.ai Harnham
Best company size Startup to mid-market Startup to mid-market
Best industries Manufacturing, Retail, Healthcare Financial services, Retail, Healthcare
Best use cases Embedding an MLOps engineer in a platform team for a long engagement, Adding a computer-vision specialist for an edge defect-detection model Hiring a permanent head of data science in London, Placing a contract data engineer for six months
Typical project type Dedicated engineer Direct hire

deepsense.ai vs Harnham: pros and cons

deepsense.ai
+ Hiring ads for senior ML roles require five or more years of production experience
+ Engineers are mostly employees rather than contractors, which helps continuity
+ Deep computer-vision and edge-deployment experience, which few staffing firms can match
- About 120 people, so large or sudden requests may wait
- Staff augmentation is not its headline service; consulting projects get more of its marketing
- No published rates or minimums
Harnham
+ Long specialist history in data recruiting
+ Offices in the UK and several U.S. cities
+ Both contract and permanent hiring
- Screening by recruitment consultants, not engineers
- Contractors are not managed after placement
- Headcount estimates vary

Who should choose deepsense.ai?

A typical fit: embedding an MLOps engineer in a platform team for a long engagement.

A research-heavy bench of about 120 employed AI specialists with ten years of production work. Minimum engagement is not publicly disclosed. Works best with clients in Manufacturing, Retail, Healthcare, Financial services, Technology.

Who should choose Harnham?

A typical fit: hiring a permanent head of data science in London.

Twenty years of recruiting only in data and analytics. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Retail, Healthcare, Media, Technology.

Decision matrix: deepsense.ai vs Harnham

Your situation Recommended choice
You want a working engineer, not a recruiter, to run the technical screen deepsense.ai
You need one specialist for a few days a week Neither advertises part-time experts; ask about reduced hours
You need several engineers working as one team Neither lists dedicated teams; check team size before signing
You want to test an engineer before committing Neither publishes a trial; negotiate a short first term
Your budget is at the lower end Compare: deepsense.ai (Not published) vs Harnham (Not published)
Your team works U.S. hours Neither lists Latin American engineers; confirm overlap hours in the contract
You may want to hire the engineer permanently later Harnham

Use case fit: deepsense.ai vs Harnham

Use case deepsense.ai fit Harnham fit Winner
Embedding an MLOps engineer in a platform team for a long engagement Strong Limited deepsense.ai
Adding a computer-vision specialist for an edge defect-detection model Strong Limited deepsense.ai
Hiring a permanent head of data science in London Limited Strong Harnham
Placing a contract data engineer for six months Limited Strong Harnham

Verdict: deepsense.ai vs Harnham

deepsense.ai (4.6/5) is the stronger overall choice for most AI Engineer Staffing projects. A research-heavy bench of about 120 employed AI specialists with ten years of production work.

Harnham (3.7/5) is worth a look if you need placing a contract data engineer for six months. If your situation matches that, Harnham is a competitive option.

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deepsense.ai vs Harnham FAQ

Is deepsense.ai better than Harnham?

deepsense.ai (4.6/5) scores higher overall, but "better" depends on your use case. deepsense.ai's strongest advantage: hiring ads for senior ML roles require five or more years of production experience. Harnham's strongest advantage: long specialist history in data recruiting.

How do deepsense.ai and Harnham differ in pricing?

deepsense.ai uses team extension billed monthly per engineer; projects quoted separately; rates on request pricing. Harnham uses placement fee for permanent hires; contractor day or hourly 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: deepsense.ai or Harnham?

Harnham 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 deepsense.ai and Harnham?

deepsense.ai's primary differentiator is: a research-heavy bench of about 120 employed AI specialists with ten years of production work. Harnham's primary differentiator is: twenty years of recruiting only in data and analytics. They also differ in team size (100–200 vs 100–500), minimum engagement (Not published vs Not published), and primary industries served (Manufacturing, Retail vs Financial services, Retail).

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