Company lists · Data refreshed September 2026

Top 25 Staff augmentation companies for accounting firms based in the United States

Name: Staff augmentation companies for accounting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 4,423 companies tracked

RevenueBase identified 4,423 staff augmentation companies for accounting firms headquartered in the United States as of September 2026 and tracks 154,859 professional contacts across them, including 25,004 with verified work emails. New York is the largest hub.

This list covers staff augmentation companies for accounting 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 29, 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 29, 2026 86% judged on-target in blind review

4,423Companies

154,859Contacts tracked

25,004Verified emails

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The 25 largest staff augmentation companies for accounting firms based in the United States

Ranked by team size

Top 25 of 4,423 staff augmentation companies for accounting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to staff augmentation companies for accounting 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	Robert Half	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 2026	10001+	25,574 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
2	Spherion	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	4,263 contacts →
	Indirect 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	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	3,934 contacts →
	Indirect 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	Remedy Intelligent Staffing	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	1,948 contacts →
	Indirect evidence “Remedy Intelligent Staffing is a nationwide professional staffing organization with more than 50 years of recruiting and selection expertise to match job candidates with positions…” Source: RevenueBase Database · checked Sep 29, 2026
5	Addison Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,840 contacts →
	Indirect evidence “Addison Group provides comprehensive talent solutions and consulting services across diverse practice areas, including Non-Clinical Healthcare, Information Technology (IT), Human…” Source: RevenueBase Database · checked Sep 29, 2026
6	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
7	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
8	SELF	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	n/a	1,431 contacts →
	Partial 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
9	Coworx Staffing Services	Indirect evidence	Morristown, NJ, United StatesHQ checked Sep 29, 2026	201-500	1,286 contacts →
	Indirect evidence “CoWorx Staffing Services is one of the largest staffing firms in the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
10	TRS Staffing Solutions	Indirect evidence	Greenville, United StatesHQ checked Sep 29, 2026	201-500	1,187 contacts →
	Indirect 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
11	QPS Employment Group	Indirect evidence	Brookfield, WI, United StatesHQ checked Sep 29, 2026	201-500	1,019 contacts →
	Indirect 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
12	Lyneer Staffing Solutions	Indirect evidence	Ewing, NJ, United StatesHQ checked Sep 29, 2026	201-500	1,012 contacts →
	Indirect evidence “The Solution to Your Staffing Needs Lyneer Staffing Solutions is a national workforce solutions company with over 25 years of experience in the staffing industry.” Source: RevenueBase Database · checked Sep 29, 2026
13	Accounting & Finance Professionals	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 29, 2026	n/a	973 contacts →
	Partial evidence “With over a decade of experience, we specialize in Finance, Accounting, Administrative, and Executive staffing markets.” Source: RevenueBase Database · checked Sep 29, 2026
14	MAX International	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 29, 2026	501-1,000	960 contacts →
	Indirect evidence “Max International is a trusted US staffing and recruitment firm committed to connecting top-tier talent with leading organizations across the United States.” Source: RevenueBase Database · checked Sep 29, 2026
15	Career Strategies	Indirect evidence	Round Rock, TX, United StatesHQ checked Sep 29, 2026	n/a	955 contacts →
	Indirect 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
16	Remx The Workforce Experts	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	901 contacts →
	Indirect 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
17	Elite Network	Partial evidence	San Francisco Bay, CA, United StatesHQ checked Sep 29, 2026	n/a	841 contacts →
	Partial evidence “Elite Network is a recruiting firm specializing in accounting and finance, with deep roots in the Bay Area and clients across the country.” Source: RevenueBase Database · checked Sep 29, 2026
18	The Reserves Network	Indirect evidence	Fairview Park, OH, United StatesHQ checked Sep 29, 2026	n/a	812 contacts →
	Indirect 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
19	Eastridge Workforce Solutions	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	n/a	803 contacts →
	Indirect evidence “Eastridge Workforce Solutions is a trusted staffing partner helping businesses build stronger, more productive teams across industrial and professional sectors.” Source: RevenueBase Database · checked Sep 29, 2026
20	CFS	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	790 contacts →
	Indirect 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
21	Primary Services	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	n/a	766 contacts →
	Partial evidence “Primary Services provides job opportunities for Accounting/Financial, Information Technology, HR, Recruiting, Marketing, Procurement, Call Center and Administrative professionals.” Source: RevenueBase Database · checked Sep 29, 2026
22	JSG Johnson Service Group, INC	Indirect evidence	Westmont, IL, United StatesHQ checked Sep 29, 2026	5,001-10,000	757 contacts →
	Indirect evidence “Johnson Service Group, Inc.(JSG) is a leader in the staffing and consulting services industry, with 40 years of experience investing in people and companies.” Source: RevenueBase Database · checked Sep 29, 2026
23	Cynet Systems	Indirect evidence	Sterling, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	732 contacts →
	Indirect evidence “Headquartered in Washington DC Metro Area, Cynet Systems is a top talent supplier for companies across North America.” Source: RevenueBase Database · checked Sep 29, 2026
24	Genesis10	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	731 contacts →
	Indirect evidence “Genesis10 connects companies and professionals through every stage of the hiring journey.” Source: RevenueBase Database · checked Sep 29, 2026
25	Kimco Staffing Services, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	n/a	682 contacts →
	Indirect evidence “You can count on Kimco Staffing to always be a business partner and an employee resource when you need us most.” 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: staff augmentation companies for accounting 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 staff augmentation companies for accounting firms.
Partial evidence: Its own public description names part of staff augmentation companies for accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name staff augmentation companies for accounting 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 4,423 staff augmentation companies for accounting firms based in the United States

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Staff augmentation companies for accounting firms based in the United States at a glance

As of Sep 29, 2026

16.1%Verified-email coverage

35.0Average contacts per company

11-50Median size (employees)

4.5%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,919

11-50

1,359

51-200

721

201-500

235

501-1,000

1,001-5,000

5,001-10,000

10001+

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 4,423 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 staff augmentation companies for accounting 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 “staff augmentation companies for accounting 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 staff augmentation companies for accounting 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 staff augmentation companies for accounting 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, 25,004 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.

Staff augmentation companies for accounting firms by metro

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 staff augmentation companies for accounting 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 staff augmentation companies for accounting firms are there based in the United States?

RevenueBase identified 4,423 staff augmentation companies for accounting 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?

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

Which city has the most staff augmentation companies for accounting firms?

New York leads with 200 headquartered companies, followed by Houston (151) and Atlanta (102).

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 25,004 verified decision-maker contacts tracked across these 4,423 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.