Company lists · Data refreshed September 2026

Top 25 Machine learning recruiting firms based in the United States

RevenueBase identified 1,902 machine learning recruiting firms headquartered in the United States as of September 2026 and tracks 21,486 professional contacts across them, including 5,104 with verified work emails. New York is the largest hub.

This list covers machine learning recruiting firms headquartered in the United States, 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.

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
1,902Companies
21,486Contacts tracked
5,104Verified emails
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The 25 largest machine learning recruiting firms based in the United States

Ranked by team size
Top 25 of 1,902 machine learning recruiting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to machine learning recruiting firms: 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 evidenceMenlo Park, CA, United StatesHQ checked Sep 28, 2026201-500422 contacts →

Indirect evidence

“As the global leader in AI-powered recruitment marketing and candidate engagement, we are transforming talent attraction and recruitment media buying for the world’s largest and…”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect 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
3Strong 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
4Indirect evidenceDE, United StatesHQ checked Sep 28, 202651-200345 contacts →

Indirect evidence

“TalentOla is a search firm focused on meeting our customers’ diversified talent needs across industry verticals and functions.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 28, 2026201-500312 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026n/a283 contacts →

Partial evidence

“Braintrust is revolutionizing hiring with Braintrust AIR, the world's first and only end-to-end AI recruiting platform.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceChula Vista, CA, United StatesHQ checked Sep 28, 20261,001-5,000276 contacts →

Indirect 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
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026201-500273 contacts →

Partial evidence

“Riviera Partners is a global executive recruiting firm specializing in Technology, Engineering, Product and Design leadership.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceRaleigh, NC, United StatesHQ checked Sep 28, 2026201-500273 contacts →

Indirect evidence

“At Leoforce, we believe hiring should be faster, smarter, and easier.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 2026201-500248 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceMiami, FL, United StatesHQ checked Sep 28, 2026201-500246 contacts →

Indirect evidence

“G2I is an AI engineering company that helps the world's leading frontier labs, enterprises, and high-growth startups hire, train, and ship AI systems.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceNew York City, TX, United StatesHQ checked Sep 28, 2026201-500210 contacts →

Indirect evidence

“Kingsley Gate is a global executive search firm born with native AI and people at its core.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceLewes, DE, United StatesHQ checked Sep 28, 2026201-500209 contacts →

Indirect evidence

“Hidani Tech is a dynamic recruitment and staffing firm focused on helping professionals achieve meaningful career growth.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 28, 2026n/a202 contacts →

Indirect evidence

“SSP is a highly committed firm dedicated to delivering the best talent which can't simply be found on job boards.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceWyoming, WY, United StatesHQ checked Sep 28, 202651-200194 contacts →

Partial evidence

“As recruiting and staffing industry experts, we're passionate about our mission to fill the greatest tech jobs with the most talented people.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceBellevue, WA, United StatesHQ checked Sep 28, 202651-200179 contacts →

Indirect evidence

“SeekOut helps organizations recruit and redeploy talent using the latest agentic AI solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceSan Jose, CA, United StatesHQ checked Sep 28, 202651-200170 contacts →

Partial evidence

“BHO Tech is a Technology Recruiting Consulting Firm located in the Bay Area Ca with multiple locations in the US and Globally BHO Tech is harnessing generative AI and Language…”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500169 contacts →

Partial evidence

“Recruitics helps the world’s leading employers transform how they attract and hire quality talent.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceCharlottesville, VA, United StatesHQ checked Sep 28, 202651-200161 contacts →

Strong evidence

“With three decades at the forefront of applied AI and machine learning, Elder Research, a MANTECH company, gives large organizations and government agencies a surefire way to…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceChantilly, VA, United StatesHQ checked Sep 28, 202651-200155 contacts →

Indirect evidence

“Alliance Tek Solutions was founded to fill the void of qualified candidates from employers in the continually growing STEM field and to step in and be the voice of knowledge for…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceTroy, MI, United StatesHQ checked Sep 28, 20261,001-5,000149 contacts →

Indirect evidence

“TEC Group recruits and employs quality talent for companies from diverse industries across the U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceAustin, TX, United StatesHQ checked Sep 28, 202651-200139 contacts →

Partial evidence

“Loxo is an AI recruiting platform built for growing professional recruiting firms worldwide.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-200135 contacts →

Indirect evidence

“Synergy Interactive is a forward-thinking staffing firm that ignites innovation by connecting visionary companies with elite AI and digital talent.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceAshburn, VA, United StatesHQ checked Sep 28, 202651-200131 contacts →

Indirect evidence

“Discover what makes us a leading IT recruitment & staffing services agency.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-200128 contacts →

Indirect evidence

“StartupSoft is an AI-focused software engineering company.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,902 machine learning recruiting firms based in the United States

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Machine learning recruiting firms based in the United States at a glance

As of Sep 28, 2026
23.8%Verified-email coverage
11.3Average contacts per company
1-10Median size (employees)
9.3%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,167
11-50
518
51-200
162
201-500
41
501-1,000
7
1,001-5,000
5
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,902 companies.

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 recruiting firms, 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “machine learning recruiting firms”. 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 recruiting firms), 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 recruiting firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 5,104 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.

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 recruiting firms, 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 recruiting firms are there based in the United States?

RevenueBase identified 1,902 machine learning recruiting firms headquartered in the United States 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?

JOVEO, headquartered in Menlo Park, tops this list with the largest team on record.

Which city has the most machine learning recruiting firms?

New York leads with 176 headquartered companies, followed by San Francisco (131) and Los Angeles (62).

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 5,104 verified decision-maker contacts tracked across these 1,902 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.