Company lists · Data refreshed September 2026

Top 25 Systems administrator staffing firms worldwide

Name: Systems administrator staffing firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 10,104 companies tracked

RevenueBase identified 10,104 systems administrator staffing firms worldwide as of September 2026 and tracks 204,634 professional contacts across them, including 28,947 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers systems administrator staffing firms 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 systems administrator staffing firms 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

10,104Companies

204,634Contacts tracked

28,947Verified emails

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The 25 largest systems administrator staffing firms worldwide

Ranked by team size

Top 25 of 10,104 systems administrator staffing firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to systems administrator staffing 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Appleone Employment Services	Indirect evidence	Glendale, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	4,627 contacts →
	Indirect evidence “AppleOne Employment Services is a full-service employment company.” Source: RevenueBase Database · checked Sep 29, 2026
2	Spherion	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	4,263 contacts →
	Partial evidence “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Source: RevenueBase Database · checked Sep 29, 2026
3	Select Staffing	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	3,934 contacts →
	Partial evidence “Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.” Source: RevenueBase Database · checked Sep 29, 2026
4	Artech L.L.C	Partial evidence	Morristown, NJ, United StatesHQ checked Sep 29, 2026	5,001-10,000	3,674 contacts →
	Partial evidence “Artech is the largest Women-Owned IT Staffing Firm in the U.S, with 34+ years of experience powering workforce transformation for Fortune 500 companies and public-sector…” Source: RevenueBase Database · checked Sep 29, 2026
5	Beacon Hill	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,238 contacts →
	Partial evidence “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Source: RevenueBase Database · checked Sep 29, 2026
6	Magna Infotech	Indirect evidence	Bangalore, IndiaHQ checked Sep 29, 2026	10001+	1,702 contacts →
	Indirect evidence “We are the largest IT staff augmentation provider in India, with employees spread across 500+ skill sets.” Source: RevenueBase Database · checked Sep 29, 2026
7	Nesco Resource	Indirect evidence	Mayfield Heights, OH, United StatesHQ checked Sep 29, 2026	501-1,000	1,599 contacts →
	Indirect evidence “Companies need talent.” Source: RevenueBase Database · checked Sep 29, 2026
8	Infotree Global Solutions	Indirect evidence	Plymouth, MI, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,545 contacts →
	Indirect evidence “Infotree Global was founded in 2002 in a small office in Canton, MI, Infotree Global had a clear mission; To bring the world’s best talent together with the greatest companies…” Source: RevenueBase Database · checked Sep 29, 2026
9	SELF	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	n/a	1,431 contacts →
	Indirect evidence “We are a Full Service Solutions Company specializing in placements of professionals in Information Technology, Finance/Accounting, Energy (front, mid and back office)…” Source: RevenueBase Database · checked Sep 29, 2026
10	System ONE	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 29, 2026	5,001-10,000	1,386 contacts →
	Strong evidence “System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life…” Source: RevenueBase Database · checked Sep 29, 2026
11	Coworx Staffing Services	Partial evidence	Morristown, NJ, United StatesHQ checked Sep 29, 2026	201-500	1,286 contacts →
	Partial evidence “CoWorx Staffing Services is one of the largest staffing firms in the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
12	Quess IT Staffing	Partial evidence	Bangalore, IndiaHQ checked Sep 29, 2026	10001+	1,232 contacts →
	Partial evidence “Quess IT Staffing is India’s largest IT staffing company with over 20 years of experience in placing IT professionals across 300+ companies, covering a wide range of levels and…” Source: RevenueBase Database · checked Sep 29, 2026
13	TRS Staffing Solutions	Partial evidence	Greenville, United StatesHQ checked Sep 29, 2026	201-500	1,187 contacts →
	Partial evidence “TRS Staffing Solutions is a world leading engineering recruitment agency specialising in the recruitment and supply of professional, engineering, technical and field talent.” Source: RevenueBase Database · checked Sep 29, 2026
14	Motion Recruitment	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	501-1,000	1,150 contacts →
	Indirect evidence “Motion Recruitment, a Kelly® Company, delivers IT Talent Solutions for Contract, Direct Hire, Managed Solutions and Statement of Work to all of North America from our 21 delivery…” Source: RevenueBase Database · checked Sep 29, 2026
15	QPS Employment Group	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 29, 2026	201-500	1,019 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 29, 2026
16	Accounting & Finance Professionals	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	n/a	973 contacts →
	Strong evidence “With over a decade of experience, we specialize in Finance, Accounting, Administrative, and Executive staffing markets.” Source: RevenueBase Database · checked Sep 29, 2026
17	Career Strategies	Partial evidence	Round Rock, TX, United StatesHQ checked Sep 29, 2026	n/a	955 contacts →
	Partial evidence “Career Strategies is a full service staffing firm specializing in Property Management, Healthcare and Professional Services recruitment.” Source: RevenueBase Database · checked Sep 29, 2026
18	Amadeus Fire	Indirect evidence	Frankfurt Am Main, GermanyHQ checked Sep 29, 2026	1,001-5,000	943 contacts →
	Indirect evidence “Amadeus Fire - Verstehen.” Source: RevenueBase Database · checked Sep 29, 2026
19	Remx The Workforce Experts	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	901 contacts →
	Partial evidence “RemX is the professional staffing division of EmployBridge, a $3 billion staffing organization with more than 600 offices in the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
20	Imcs Group	Partial evidence	Irving, TX, United StatesHQ checked Sep 29, 2026	201-500	881 contacts →
	Partial evidence “IMCS Group is an IT, Healthcare, and Professional Staffing Company that helps Enterprises optimize the business value of their Staffing investments and enables them to achieve…” Source: RevenueBase Database · checked Sep 29, 2026
21	JKS A S	Indirect evidence	Ringkøbing, DenmarkHQ checked Sep 29, 2026	1,001-5,000	822 contacts →
	Indirect evidence “We are JKS.” Source: RevenueBase Database · checked Sep 29, 2026
22	The Reserves Network	Partial evidence	Fairview Park, OH, United StatesHQ checked Sep 29, 2026	n/a	812 contacts →
	Partial evidence “The Reserves Network is a leading provider of staffing services for the Office, Industrial, Professional and Technical markets.” Source: RevenueBase Database · checked Sep 29, 2026
23	CFS	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	790 contacts →
	Partial evidence “Founded by CPA firms in 1994, Creative Financial Staffing has spent over 30 years helping job seekers and employers succeed.” Source: RevenueBase Database · checked Sep 29, 2026
24	Signature Consultants	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	783 contacts →
	Indirect evidence “We’re stronger together.” Source: RevenueBase Database · checked Sep 29, 2026
25	Florence Doré	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	1,001-5,000	780 contacts →
	Indirect evidence “Spécialisé dans les métiers de l’accueil depuis plus de 50 ans, Florence Doré s’est développé, depuis plusieurs années dans le détachement de nombreux autres talents auprès de ses…” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: systems administrator staffing firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names systems administrator staffing firms.
Partial evidence: Its own public description names part of systems administrator staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems administrator staffing firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 10,104 systems administrator staffing firms worldwide

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Systems administrator staffing firms worldwide at a glance

As of Sep 29, 2026

14.1%Verified-email coverage

20.3Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

4,070

11-50

3,289

51-200

1,797

201-500

529

501-1,000

201

1,001-5,000

136

5,001-10,000

10001+

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 systems administrator staffing 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.
Coverage: Every country. Country and city lists for systems administrator staffing firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “systems administrator staffing 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 systems administrator staffing 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 systems administrator staffing firms, 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, 28,947 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.

Systems administrator staffing firms by location

51 lists · largest first

Every Systems administrator staffing firms 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 systems administrator staffing 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 systems administrator staffing firms are there worldwide?

RevenueBase identified 10,104 systems administrator staffing firms 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?

Appleone Employment Services, headquartered in Glendale, tops this list with the largest team on record.

Which country has the most systems administrator staffing firms?

The United States leads with 4,739 companies, followed by India (803) and the Netherlands (495). Every systems administrator staffing firms list by country and city is linked on this page.

Which city has the most systems administrator staffing firms?

New York leads with 153 headquartered companies, followed by Houston (145) and Hyderabad (140).

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 28,947 verified decision-maker contacts tracked across these 10,104 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.