Company lists · Data refreshed September 2026

Top 25 User acquisition staffing companies worldwide

RevenueBase identified 2,232 user acquisition staffing companies worldwide as of September 2026 and tracks 21,406 professional contacts across them, including 3,622 with verified work emails. The United States is the largest market and London the largest hub.

This list covers user acquisition 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 29, 2026. Country and city lists for user acquisition 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 29, 2026 86% judged on-target in blind review
2,232Companies
21,406Contacts tracked
3,622Verified emails
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The 25 largest user acquisition staffing companies worldwide

Ranked by team size
Top 25 of 2,232 user acquisition staffing companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to user acquisition 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 29, 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 29, 2026
2Indirect evidenceDallas, TX, United StatesHQ checked Sep 29, 202651-200588 contacts →

Indirect evidence

“Support Shepherd is now Somewhere!”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 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 29, 2026
4Partial evidenceTuscaloosa, AL, United StatesHQ checked Sep 29, 202651-200389 contacts →

Partial evidence

“Randall Reilly delivers full scale talent acquisition, turning talent challenges into growth opportunities.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceLincolnwood, IL, United StatesHQ checked Sep 29, 2026201-500281 contacts →

Indirect evidence

“Founded in Feb of 2014 by Irfan Khan (Founder/Vice President), Ashutosh Jha (Founder/Director) and Md.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceMelville, NY, United StatesHQ checked Sep 29, 202651-200274 contacts →

Indirect evidence

“The Sage Group, a 24 Seven company, is a leading talent solutions firm with a fine-tuned approach in the marketing, technology, and business operations space.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceWestchester, IL, United StatesHQ checked Sep 29, 2026n/a209 contacts →

Indirect evidence

“Established in 1998, ad+one is comprised of hand-picked recruitment professionals with over 30+ years of combined recruiting experience serving the advertising and media agency…”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 29, 2026201-500176 contacts →

Indirect evidence

“Growth.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceWinter Park, FL, United StatesHQ checked Sep 29, 202651-200148 contacts →

Indirect evidence

“Source2 helps organizations move beyond rigid recruiting models with Adaptive Recruiting Solutions built for how companies actually hire.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceHerndon, VA, United StatesHQ checked Sep 29, 202651-200146 contacts →

Partial evidence

“Largeton Group is a delivery engine for large staffing firms.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceDelhi, IndiaHQ checked Sep 29, 202651-200142 contacts →

Indirect evidence

“Do you want the best people to join your team?”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceBengaluru, IndiaHQ checked Sep 29, 20261,001-5,000141 contacts →

Indirect evidence

“BSS Recruit is a talent solutions partner helping organizations build high-performing teams across India and globally.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500121 contacts →

Indirect evidence

“The Talent Partners for the AI Revolution.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceSalvador, BrazilHQ checked Sep 29, 202651-200120 contacts →

Indirect evidence

“We are here to revolutionize the relationship between candidate and organizations.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceOrange, CA, United StatesHQ checked Sep 29, 2026n/a115 contacts →

Partial evidence

“E-commerce Talent Acquisition eCommerce brands and marketing agencies are only as good as the people who work at them.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceHarrisburg, PA, United StatesHQ checked Sep 29, 202651-200103 contacts →

Indirect evidence

“For over 30 years, we have been serving clients ranging from technology startups and mid-market companies to the Fortune 100.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceUnited StatesHQ checked Sep 29, 2026201-50098 contacts →

Partial evidence

“Reqroute is a Staffing and Recruitment Marketing firm based in the heart of Silicon Valley in California.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceWoodstock, GA, United StatesHQ checked Sep 29, 202651-20092 contacts →

Partial evidence

“At Braves Technologies, our mission is to revolutionize talent acquisition by harnessing the power of AI and human expertise to connect businesses with exceptional talent.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202611-5092 contacts →

Indirect evidence

“For more than 25 years, AC Lion has placed the leaders who build revenue, product, and growth engines at companies redefining media, software, and AI.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidencePlano, TX, United StatesHQ checked Sep 29, 2026201-50091 contacts →

Indirect evidence

“Veridic is a leading provider of the most in demand talent clients need for their technology initiatives.”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceJohns Creek, GA, United StatesHQ checked Sep 29, 202651-20091 contacts →

Partial evidence

“Vector Consulting is an innovative provider of custom, on-demand, IT talent acquisition solutions that enable clients to harness the business value of technology.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLimassol, CyprusHQ checked Sep 29, 202651-20089 contacts →

Indirect evidence

“AdQuantum works as a performance marketing partner for mobile apps and web projects.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 2026201-50088 contacts →

Indirect evidence

“MissionStaff® specializes in delivering top-tier talent in Technology, Creative, and Marketing, as well as the Business Services that support these teams.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceUnited KingdomHQ checked Sep 29, 202611-5085 contacts →

Partial evidence

“Here at ABLE Staffing we are a specialist recruitment agencies working within the Sales, Marketing and Childcare industries.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceDehradun, IndiaHQ checked Sep 29, 202651-20085 contacts →

Partial evidence

“Wellborn Technologies: A Catalyst for Success In a world where the only constant is change, organizations need more than just a staffing solution; they need a strategic partner.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 2,232 user acquisition staffing companies worldwide

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User acquisition staffing companies worldwide at a glance

As of Sep 29, 2026
16.9%Verified-email coverage
9.6Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,292
11-50
697
51-200
179
201-500
42
501-1,000
8
1,001-5,000
3
5,001-10,000
2
10001+
3

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 user acquisition 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 user acquisition staffing companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “user acquisition 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 user acquisition 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 user acquisition 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, 3,622 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 29, 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.

User acquisition staffing companies by location

15 lists · largest first

Every User acquisition 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 user acquisition 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 user acquisition staffing companies are there worldwide?

RevenueBase identified 2,232 user acquisition 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 user acquisition staffing companies?

The United States leads with 648 companies, followed by India (283) and the United Kingdom (164). Every user acquisition staffing companies list by country and city is linked on this page.

Which city has the most user acquisition staffing companies?

London leads with 92 headquartered companies, followed by New York (59) and San Francisco (31).

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 3,622 verified decision-maker contacts tracked across these 2,232 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 29, 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.