Top AI Engineer Staffing Companies

Proxify vs Neurons Lab: full comparison for 2026

Quick verdict

Proxify (4.4/5) edges ahead of Neurons Lab (4.3/5) overall. Proxify is the better choice for european companies that want a vetted ML or data engineer on European working hours. Neurons Lab is the stronger option for banks and insurers that need agent or LLM engineers who have worked under financial regulation. The right choice depends on your project size, budget, and required tech stack.

Proxify vs Neurons Lab: head-to-head summary

Criterion Proxify Neurons Lab
Founded 2018 2019
HQ Stockholm, Sweden London, United Kingdom
Team size 5,000+ network members 50–200 staff; 500+ network
Rating 4.4 / 5 4.3 / 5
Primary differentiator Senior-engineer interviews with live coding after an automated skills test A 500-engineer network managed by a small AI-only core team in London
Pricing model Hourly rate per developer billed monthly; full-time or part-time; rates on request Monthly team or per-engineer billing; projects quoted separately; rates on request
Min. engagement Not published Not published
Primary tech stack Python, PyTorch, TensorFlow Python, PyTorch, LangChain
Industries served SaaS, Fintech, E-commerce, Media, Healthcare Financial services, Insurance, Healthcare, Cleantech, Retail

Proxify vs Neurons Lab: overview

Proxify

Proxify was founded in Stockholm in 2018 (one of its own pages says 2019) and matches companies with vetted developers across web, data, AI and DevOps. Candidates take Codility-based skills tests, then sit in-depth technical interviews with Proxify's senior engineers that include live coding and practical problems. The company quotes an acceptance rate of 1–3%, though the figure varies from page to page. Its network covers more than 5,000 professionals in over 90 countries, and it appeared on the Financial Times 1,000 list in 2025. Matching uses in-house AI tools alongside its hiring team.

Neurons Lab

Neurons Lab was founded in London in 2019 and works on AI research, development and consulting. Its own site describes a distributed talent network of more than 500 engineers, which is far larger than the 50 or so people directories list as staff. That network model lets it add ML, LLM and agent engineers to client teams without hiring each one first. It names banks and insurers among its clients and holds an AWS generative AI competency. The firm also works in healthtech and cleantech.

Services and capabilities: Proxify vs Neurons Lab

Capability Proxify Neurons Lab
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: Proxify vs Neurons Lab

Framework / platform Proxify Neurons Lab
PyTorch ✓ ✓
TensorFlow ✓ N/A
LangChain N/A ✓
Hugging Face N/A ✓
OpenAI N/A ✓
AWS ✓ ✓
Azure ✓ N/A
Google Cloud ✓ N/A
Databricks ✓ N/A
Kubernetes N/A N/A

Pricing comparison: Proxify vs Neurons Lab

Criterion Proxify Neurons Lab
Minimum engagement Not published Not published
Engagement models Dedicated engineer, Fractional expert, Freelance contract Dedicated engineer, Fractional expert, Project delivery
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Proxify vs Neurons Lab

Dimension Proxify Neurons Lab
Best company size Startup to mid-market Startup to mid-market
Best industries SaaS, Fintech, E-commerce Financial services, Insurance, Healthcare
Best use cases Adding a data engineer to a European fintech's analytics team, Hiring a Python ML developer for a recommender system Adding an agent engineer to an insurer's claims automation project, Bringing in a RAG specialist for a bank's internal knowledge assistant
Typical project type Dedicated engineer Dedicated engineer

Proxify vs Neurons Lab: pros and cons

Proxify
+ Live-coding interviews with in-house senior engineers are part of the published process
+ Most of the network is in European time zones, which suits teams in the EU and UK
+ Grew fast enough to make the Financial Times 1,000 list in 2025
- AI is one of many skill areas, and there is no AI-specific test on the record
- Acceptance-rate and network-size figures differ across the company's own pages
- Developers are contractors on the platform, not Proxify employees
Neurons Lab
+ Strong references in banking and insurance
+ AWS generative AI competency is useful for Bedrock projects
+ Network model makes part-time specialists easier to arrange
- Most engineers are network members, not employees, so continuity varies
- Headcount estimates range from 11 to 200
- Staff augmentation is not described as a separate product

Who should choose Proxify?

A typical fit: adding a data engineer to a European fintech's analytics team.

Senior-engineer interviews with live coding after an automated skills test. Minimum engagement is not publicly disclosed. Works best with clients in SaaS, Fintech, E-commerce, Media, Healthcare.

Who should choose Neurons Lab?

A typical fit: adding an agent engineer to an insurer's claims automation project.

A 500-engineer network managed by a small AI-only core team in London. Minimum engagement is not publicly disclosed. Works best with clients in Financial services, Insurance, Healthcare, Cleantech, Retail.

Decision matrix: Proxify vs Neurons Lab

Your situation Recommended choice
You want a working engineer, not a recruiter, to run the technical screen Proxify
You need one specialist for a few days a week Both; Proxify rates higher overall
You need several engineers working as one team Both; Proxify rates higher overall
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: Proxify (Not published) vs Neurons Lab (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 Neither lists direct hire; agree conversion terms up front

Use case fit: Proxify vs Neurons Lab

Use case Proxify fit Neurons Lab fit Winner
Adding a data engineer to a European fintech's analytics team Strong Strong Both equally
Hiring a Python ML developer for a recommender system Strong Strong Both equally
Adding an agent engineer to an insurer's claims automation project Strong Strong Both equally
Bringing in a RAG specialist for a bank's internal knowledge assistant Limited Strong Neurons Lab

Verdict: Proxify vs Neurons Lab

Proxify (4.4/5) is the stronger overall choice for most AI Engineer Staffing projects. Senior-engineer interviews with live coding after an automated skills test.

Neurons Lab (4.3/5) is worth a look if you need bringing in a RAG specialist for a bank's internal knowledge assistant. If your situation matches that, Neurons Lab is a competitive option.

Related comparisons

Proxify vs Neurons Lab FAQ

Is Proxify better than Neurons Lab?

Proxify (4.4/5) scores higher overall, but "better" depends on your use case. Proxify's strongest advantage: live-coding interviews with in-house senior engineers are part of the published process. Neurons Lab's strongest advantage: strong references in banking and insurance.

How do Proxify and Neurons Lab differ in pricing?

Proxify uses hourly rate per developer billed monthly; full-time or part-time; rates on request pricing. Neurons Lab uses monthly team or per-engineer billing; projects quoted separately; 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: Proxify or Neurons Lab?

Neurons Lab 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 Proxify and Neurons Lab?

Proxify's primary differentiator is: senior-engineer interviews with live coding after an automated skills test. Neurons Lab's primary differentiator is: a 500-engineer network managed by a small AI-only core team in London. They also differ in team size (5,000+ network members vs 50–200 staff; 500+ network), minimum engagement (Not published vs Not published), and primary industries served (SaaS, Fintech vs Financial services, Insurance).

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