Top AI Engineer Staffing Companies

Toptal vs Addepto: full comparison for 2026

Quick verdict

Toptal (4.5/5) edges ahead of Addepto (4.0/5) overall. Toptal is the better choice for engineering leads who need one senior freelance ML specialist quickly and can pay a premium. Addepto is the stronger option for industrial and automotive companies that need data engineers who know factory data. The right choice depends on your project size, budget, and required tech stack.

Toptal vs Addepto: head-to-head summary

Criterion Toptal Addepto
Founded 2010 2017
HQ Remote-first (no central office) Warsaw, Poland
Team size Staff size not published; large freelance network 50–249
Rating 4.5 / 5 4.0 / 5
Primary differentiator Multi-stage screening that ends with interviews by senior engineers and a test project Data and ML engineers with industrial and automotive client history
Pricing model Freelance hourly or weekly rates set per engineer; no-risk trial period; rates on request Monthly per engineer or project fee; rates on request
Min. engagement Not published Not published
Primary tech stack Python, PyTorch, TensorFlow Python, Databricks, Spark
Industries served Technology, Finance, Healthcare, Media, Retail Manufacturing, Automotive, Aviation, Retail, Logistics

Toptal vs Addepto: overview

Toptal

Toptal, founded in 2010 and run as a remote-first company, is a freelance marketplace rather than an employer, and its AI pool covers machine learning, generative AI, NLP and LLM work. Its screening is the most documented of any network here. The FAQ describes a process of three to eight weeks: an English and communication check, algorithm and computer science tests, several technical interviews with senior engineers, and a test project. Toptal says fewer than 3% of applicants get through. New engagements start with a no-risk trial period. The trade-off is price and continuity, because freelancers set their own rates and can leave for another client.

Addepto

Addepto was founded in Warsaw in 2017 and works on AI, ML and data engineering, mostly for industrial and automotive clients. KMS Technology acquired it in December 2025, so it now sits inside a larger U.S.-based IT group. Addepto supplies data and ML engineers for team extension as well as running projects. The acquisition may widen its bench over time, but buyers should expect changes to contracts and account management as the integration proceeds.

Services and capabilities: Toptal vs Addepto

Capability Toptal Addepto
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: Toptal vs Addepto

Framework / platform Toptal Addepto
PyTorch ✓ ✓
TensorFlow ✓ N/A
LangChain ✓ N/A
Hugging Face ✓ N/A
OpenAI ✓ ✓
AWS ✓ ✓
Azure ✓ ✓
Google Cloud ✓ N/A
Databricks N/A ✓
Kubernetes N/A N/A

Pricing comparison: Toptal vs Addepto

Criterion Toptal Addepto
Minimum engagement Not published Not published
Engagement models Freelance contract, Fractional expert, Trial period Dedicated engineer, Dedicated team, Project delivery
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Toptal vs Addepto

Dimension Toptal Addepto
Best company size Startup to mid-market Startup to mid-market
Best industries Technology, Finance, Healthcare Manufacturing, Automotive, Aviation
Best use cases Hiring one senior NLP freelancer for a three-month search relevance project, Adding a part-time LLM specialist to review an in-house prototype Adding a data engineer to an automotive analytics platform, Building a predictive maintenance model with a two-person team
Typical project type Freelance contract Dedicated engineer

Toptal vs Addepto: pros and cons

Toptal
+ Engineer-run interviews and a test project are published parts of the screen
+ Part-time and hourly engagements are normal, so a ten-hour-a-week specialist is easy to arrange
+ The no-risk trial lets you stop early without paying if the match is wrong
- Freelancers are not Toptal employees and may move on to other clients
- Among the most expensive options on this page, and no public rate card
- The screen is general software screening; there is no published ML-specific test
Addepto
+ Strong data engineering on Databricks and Azure
+ Industrial and automotive references
+ Backing from a larger group may add capacity
- Acquired by KMS Technology in December 2025, so terms and contacts may change
- Fewer computer-vision and NLP specialists than AI-research firms
- Staffing evidence is thinner than its project work

Who should choose Toptal?

A typical fit: hiring one senior NLP freelancer for a three-month search relevance project.

Multi-stage screening that ends with interviews by senior engineers and a test project. Minimum engagement is not publicly disclosed. Works best with clients in Technology, Finance, Healthcare, Media, Retail.

Who should choose Addepto?

A typical fit: adding a data engineer to an automotive analytics platform.

Data and ML engineers with industrial and automotive client history. Minimum engagement is not publicly disclosed. Works best with clients in Manufacturing, Automotive, Aviation, Retail, Logistics.

Decision matrix: Toptal vs Addepto

Your situation Recommended choice
You want a working engineer, not a recruiter, to run the technical screen Toptal
You need one specialist for a few days a week Toptal
You need several engineers working as one team Addepto
You want to test an engineer before committing Toptal
Your budget is at the lower end Compare: Toptal (Not published) vs Addepto (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: Toptal vs Addepto

Use case Toptal fit Addepto fit Winner
Hiring one senior NLP freelancer for a three-month search relevance project Strong Limited Toptal
Adding a part-time LLM specialist to review an in-house prototype Strong Strong Both equally
Adding a data engineer to an automotive analytics platform Strong Strong Both equally
Building a predictive maintenance model with a two-person team Limited Strong Addepto

Verdict: Toptal vs Addepto

Toptal (4.5/5) is the stronger overall choice for most AI Engineer Staffing projects. Multi-stage screening that ends with interviews by senior engineers and a test project.

Addepto (4.0/5) is worth a look if you need building a predictive maintenance model with a two-person team. If your situation matches that, Addepto is a competitive option.

Related comparisons

Toptal vs Addepto FAQ

Is Toptal better than Addepto?

Toptal (4.5/5) scores higher overall, but "better" depends on your use case. Toptal's strongest advantage: engineer-run interviews and a test project are published parts of the screen. Addepto's strongest advantage: strong data engineering on Databricks and Azure.

How do Toptal and Addepto differ in pricing?

Toptal uses freelance hourly or weekly rates set per engineer; no-risk trial period; rates on request pricing. Addepto uses monthly per engineer or project fee; 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: Toptal or Addepto?

Addepto 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 Toptal and Addepto?

Toptal's primary differentiator is: multi-stage screening that ends with interviews by senior engineers and a test project. Addepto's primary differentiator is: data and ML engineers with industrial and automotive client history. They also differ in team size (Staff size not published; large freelance network vs 50–249), minimum engagement (Not published vs Not published), and primary industries served (Technology, Finance vs Manufacturing, Automotive).

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