Company lists · Data refreshed September 2026

Top 25 Systems administrator staffing agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 35,959 companies tracked

RevenueBase identified 35,959 company matches for systems administrator staffing agencies worldwide as of September 2026 and tracks 979,826 professional contacts across them, including 140,282 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for systems administrator staffing agencies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026. Country and city lists for systems administrator staffing agencies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

35,959Companies

979,826Contacts tracked

140,282Verified emails

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The 25 largest systems administrator staffing agencies worldwide

Ranked by team size

Top 25 of 35,959 company matches for systems administrator staffing agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Adecco	Exact match	Zurich, SwitzerlandHQ recorded Sep 29, 2026	10001+	141,230 contacts →
	Exact match “Perfect placements.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	KELLY	Exact match	Troy, MI, United StatesHQ recorded Sep 29, 2026	10001+	30,378 contacts →
	Exact match “We’ve been helping organizations find the people they need longer than any other company in the world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Robert Half	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 29, 2026	10001+	25,574 contacts →
	Exact match “At Robert Half, we prioritize your security-if you believe you've encountered a scam or fraudulent recruiter, please report it immediately to All Robert Half recruiters…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	HAYS	Exact match	London, United KingdomHQ recorded Sep 29, 2026	5,001-10,000	22,731 contacts →
	Exact match “At Hays, we believe that the right job can transform a person's life - and the right person can transform a business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Insight Global	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	n/a	15,553 contacts →
	Exact match “Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Express Employment International	Exact match	Oklahoma City, OK, United StatesHQ recorded Sep 29, 2026	10001+	12,647 contacts →
	Exact match “Founded in 1983 and corporately headquartered in Oklahoma City, Express Employment International supports the Express Employment Professionals franchise and related brands.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	REED	Exact match	London, United KingdomHQ recorded Sep 29, 2026	1,001-5,000	5,837 contacts →
	Exact match “Reed is the largest family-run recruitment business in the world and we’ve been improving lives through work since 1960.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Peopleready	Exact match	Tacoma, WA, United StatesHQ recorded Sep 29, 2026	10001+	5,482 contacts →
	Exact match “Want to be part of an award-winning team that is reimagining the way people connect with work?” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Appleone Employment Services	Exact match	Glendale, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	4,627 contacts →
	Exact match “AppleOne Employment Services is a full-service employment company.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Spherion	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	10001+	4,263 contacts →
	Exact match “We’re Spherion-a staffing and recruiting pioneer that’s been driving careers and helping businesses grow for over 75 years.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Select Staffing	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	10001+	3,934 contacts →
	Exact match “Select Staffing is a leading provider of temporary staffing and employment services in the U.S, with nationwide operations across multiple contingent staffing sectors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Artech L.L.C	Exact match	Morristown, NJ, United StatesHQ recorded Sep 29, 2026	5,001-10,000	3,674 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Manpower France	Exact match	Puteaux, FranceHQ recorded Sep 29, 2026	1,001-5,000	3,619 contacts →
	Exact match “Manpower France est une marque de ManpowerGroup France qui propose aux entreprises des solutions en matière de recrutement sous le label Conseil Recrutement et des solutions aux…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Elwood Staffing Services, INC	Exact match	Columbus, IN, United StatesHQ recorded Sep 29, 2026	n/a	3,481 contacts →
	Exact match “Whether you're looking to find your next great employee, make your next career move, or help a friend find a new job, you can trust that Elwood puts its passion and expertise into…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Beacon Hill	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	3,238 contacts →
	Exact match “Beacon Hill was founded to set a new standard in search, career placement and flexible staffing.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Randstad India	Exact match	Chennai, IndiaHQ recorded Sep 29, 2026	1,001-5,000	3,145 contacts →
	Exact match “Randstad is the world’s largest talent company and a partner of choice to clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Dexian	Exact match	Mclean, VA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,852 contacts →
	Exact match “Dexian is a leading provider of staffing, IT, and workforce solutions with nearly employees and 70 locations worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Computer Futures	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	2,673 contacts →
	Exact match “Building tomorrow’s tech landscape together Computer Futures is a Technology specialist, part of SThree, the global STEM workforce consultancy.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Samsic Emploi	Exact match	Rennes, FranceHQ recorded Sep 29, 2026	5,001-10,000	2,454 contacts →
	Exact match “Samsic Emploi a été classée meilleure enseigne de travail temporaire par Capital, pour la 4ème année consécutive.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Blue Arrow	Exact match	London, United KingdomHQ recorded Sep 29, 2026	n/a	2,341 contacts →
	Exact match “Blue Arrow is the UK’s Best-Known Staffing Agency, placing tens of thousands of candidates into temporary and permanent jobs for employers in the transport, logistics, call…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Airswift	Exact match	Houston, TX, United StatesHQ recorded Sep 29, 2026	501-1,000	2,128 contacts →
	Exact match “We support STEM professionals looking for jobs with exceptional firms in the technology and engineering sectors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	CSI Companies	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 29, 2026	n/a	2,120 contacts →
	Exact match “Headquartered in Jacksonville, FL, CSI Companies partners with organizations nationwide to deliver solutions-focused workforce services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Pagegroup	Exact match	London, United KingdomHQ recorded Sep 29, 2026	5,001-10,000	2,071 contacts →
	Exact match “Michael Page, Page Personnel, Page Executive and Page Outsourcing are all part of PageGroup.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Rose International	Exact match	Chesterfield, MO, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,061 contacts →
	Exact match “Rose International is a leading provider of Staffing and Total Talent Solutions to corporations and government agencies, employing thousands of people across the U.S, Canada and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Start People	Exact match	Almere, NetherlandsHQ recorded Sep 29, 2026	1,001-5,000	2,027 contacts →
	Exact match “Al meer dan vijfendertig jaar verbindt Start People mens en werk.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “systems administrator staffing agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 35,959 systems administrator staffing agencies worldwide

See the full list, filter by size, metro and specialty, and access 140,282 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Systems administrator staffing agencies worldwide at a glance

As of Sep 29, 2026

14.3%Verified-email coverage

27.2Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

16,354

11-50

11,058

51-200

5,295

201-500

1,722

501-1,000

711

1,001-5,000

508

5,001-10,000

10001+

132

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for systems administrator staffing agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “systems administrator staffing agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 140,282 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Systems administrator staffing agencies by location

174 lists · largest first

Every Systems administrator staffing agencies 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “systems administrator staffing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many systems administrator staffing agencies are there worldwide?

RevenueBase identified 35,959 company matches for systems administrator staffing agencies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Adecco tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most systems administrator staffing agencies?

The United States leads with 13,021 companies, followed by India (4,352) and the United Kingdom (2,632). Every systems administrator staffing agencies list by country and city is linked on this page.

Which city has the most systems administrator staffing agencies?

London leads with 721 company records, followed by New York (491) and Hyderabad (451).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 140,282 professional contacts with verified work emails tracked across these 35,959 companies; direct dials are available where recorded.

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 SmartSearch, 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.