Company lists · Data refreshed September 2026

Top 25 Machine learning engineers staffing companies worldwide

RevenueBase identified 6,519 machine learning engineers staffing companies worldwide as of September 2026 and tracks 83,305 professional contacts across them, including 14,249 with verified work emails. The United States is the largest market and London the largest hub.

This list covers machine learning engineers staffing companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for machine learning engineers staffing companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
6,519Companies
83,305Contacts tracked
14,249Verified emails
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The 25 largest machine learning engineers staffing companies worldwide

Ranked by team size
Top 25 of 6,519 machine learning engineers staffing companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to machine learning engineers staffing companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNY, United StatesHQ checked Sep 28, 2026n/a2,554 contacts →

Indirect evidence

“24 Seven partners with companies to get marketing, creative, and digital work done by providing the right talent, innovation, and insights.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceRaleigh, NC, United StatesHQ checked Sep 28, 20261,001-5,0001,845 contacts →

Partial evidence

“Founded in 2004, SPECTRAFORCE® is a global staffing and workforce solutions company that helps organizations build high-performing teams across healthcare, technology, financial…”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceMayfield Heights, OH, United StatesHQ checked Sep 28, 2026501-1,0001,599 contacts →

Indirect evidence

“Companies need talent.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20265,001-10,0001,248 contacts →

Indirect evidence

“We’re Harvey Nash, and we build amazing technology and digital teams.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceBrookfield, WI, United StatesHQ checked Sep 28, 2026201-5001,019 contacts →

Partial evidence

“Founded in 1985, QPS Employment Group has grown from a two-person operation to one of the nation's leading staffing and recruiting firms, with more than 300 internal employees…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceNewport Beach, CA, United StatesHQ checked Sep 28, 2026501-1,0001,005 contacts →

Indirect evidence

“Jobot connects good people with good jobs.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceDiemen, NetherlandsHQ checked Sep 28, 20261,001-5,000794 contacts →

Indirect evidence

“Wij zijn jouw partner voor talent.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000614 contacts →

Partial evidence

“Mitchell Martin Inc.(MMI) is one of the largest employee-owned staffing firms in the U.S, specializing in IT, healthcare, healthcare IT, accounting and finance, and professional…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceOrange, CA, United StatesHQ checked Sep 28, 20265,001-10,000584 contacts →

Indirect evidence

“A Six Sigma Company ~61 years in the industry ~Nationwide 4 million+ candidate database ~Fortune Company ~Extensive E-Recruiting capabilities ~Reference and Employment check…”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceStockholm, SwedenHQ checked Sep 28, 2026201-500553 contacts →

Partial evidence

“TNG, Talent Navigation Group, is the recruitment and staffing company that helps employers with talent acquisition – faster, bias-free, and with fresh perspectives that drive…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceWalnut Creek, CA, United StatesHQ checked Sep 28, 2026501-1,000551 contacts →

Partial evidence

“Solvd is an AI engineering company with over a decade of experience implementing AI in corporations and products across technology, ecommerce, retail, fintech, hospitality, and…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceRochester, NY, United StatesHQ checked Sep 28, 2026201-500533 contacts →

Partial evidence

“Ceipal provides AI-powered staffing software that helps staffing, recruiting, and talent professionals work more efficiently while keeping people at the center of their work.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceNew York, CA, United StatesHQ checked Sep 28, 2026201-500509 contacts →

Indirect evidence

“At Tandym Group, we offer human-centered solutions that leverage best-in-class AI to strengthen teams and drive business forward.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-200484 contacts →

Partial evidence

“As the largest, national staffing agency specializing exclusively in high-end, niche IT, Tech, and Digital Marketing talent, staffing is more than just our job.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-200454 contacts →

Partial evidence

“We are Texas’ largest employee-owned staffing & placement agency set apart by our award-winning and innovative services, outstanding staff tenure, multiple skill specializations…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceSouthfield, MI, United StatesHQ checked Sep 28, 20261,001-5,000447 contacts →

Indirect evidence

“Trusted for Talent.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceSunrise, FL, United StatesHQ checked Sep 28, 2026201-500372 contacts →

Indirect evidence

“Since 1983, StevenDouglas has established itself as a recognized leader in providing access to top talent, driven by highly tenured and experienced professionals committed to…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceMountain View, CA, United StatesHQ checked Sep 28, 2026201-500370 contacts →

Strong evidence

“Factored (backed by Andrew Ng's AI Fund and deeplearning.ai) helps leading tech companies select, upskill, and build world-class data science, machine learning and AI engineering…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceAldie, VA, United StatesHQ checked Sep 28, 202651-200356 contacts →

Partial evidence

“Vyze Inc is a leading IT staffing company that helps small and big organizations acquire, engage and retain the right talents, when and how you need them, such as contract-hire…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceDublin, OH, United StatesHQ checked Sep 28, 20261,001-5,000318 contacts →

Indirect evidence

“Welcome to USG - Pioneering Global IT Solutions and Workforce Management Excellence Since our inception in 2002, USG has grown into a global powerhouse, distinguished for its…”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceHouston, TX, United StatesHQ checked Sep 28, 2026201-500312 contacts →

Strong evidence

“Ktek Resourcing is a global staffing and recruitment firm specializing in IT, engineering, and professional services.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceChula Vista, CA, United StatesHQ checked Sep 28, 20261,001-5,000276 contacts →

Partial evidence

“Vastek Group: Your Strategic Staffing & Professional Service Partner At Vastek Group, we pride ourselves on being more than just a staffing agency.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 2026201-500262 contacts →

Indirect evidence

“Crystal Equation (CE) is a certified Women-Owned Business that empowers people and advances technology initiatives by building trust.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceMumbai, IndiaHQ checked Sep 28, 2026201-500257 contacts →

Indirect evidence

“Coppergate is an innovative, fresh and one of the fastest growing recruitment company that offers you flexibility and professionalism.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceCincinnati, OH, United StatesHQ checked Sep 28, 20261,001-5,000249 contacts →

Partial evidence

“The Job Center Staffing is more than a staffing provider!”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 6,519 machine learning engineers staffing companies worldwide

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Machine learning engineers staffing companies worldwide at a glance

As of Sep 28, 2026
17.1%Verified-email coverage
12.8Average contacts per company
1-10Median size (employees)
4.4%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
3,593
11-50
1,879
51-200
734
201-500
180
501-1,000
72
1,001-5,000
29
5,001-10,000
8
10001+
12

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among machine learning engineers staffing companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for machine learning engineers staffing companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “machine learning engineers staffing companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names machine learning engineers staffing companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among machine learning engineers staffing companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 14,249 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Machine learning engineers staffing companies by location

46 lists · largest first

Every Machine learning engineers staffing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names machine learning engineers staffing companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many machine learning engineers staffing companies are there worldwide?

RevenueBase identified 6,519 machine learning engineers staffing companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

24 Seven Talent, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most machine learning engineers staffing companies?

The United States leads with 2,414 companies, followed by India (757) and the United Kingdom (616). Every machine learning engineers staffing companies list by country and city is linked on this page.

Which city has the most machine learning engineers staffing companies?

London leads with 288 headquartered companies, followed by New York (131) and San Francisco (88).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 14,249 verified decision-maker contacts tracked across these 6,519 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.