Company lists · Data refreshed September 2026

Top 25 Staffing agencies for back office roles based in San Diego, United States

Name: Staffing agencies for back office roles based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 63 companies tracked

RevenueBase identified 63 staffing agencies for back office roles headquartered in San Diego, United States as of September 2026 and tracks 1,543 professional contacts across them, including 216 with verified work emails. Across the United States, New York is the largest hub for this category (418 companies); San Diego has 63.

This list covers staffing agencies for back office roles headquartered in San Diego, 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

63Companies

1,543Contacts tracked

216Verified emails

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The 25 largest staffing agencies for back office roles based in San Diego, United States

Ranked by team size

Top 25 of 63 staffing agencies for back office roles based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to staffing agencies for back office roles: 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	Eastridge Workforce Solutions	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	n/a	803 contacts →
	Partial 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
2	Tristaff Group Of Companies, Division Of Amtec	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	95 contacts →
	Partial evidence “TriStaff Group of Companies is a premier Full Service Staffing and Executive Search firm headquartered in San Diego, California.” Source: RevenueBase Database · checked Sep 29, 2026
3	Broekema Group	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	50 contacts →
	Partial evidence “Broekema Group, a subsidiary of On Call Staffing Solutions, Inc, is a privately held, woman-owned professional recruiting firm specializing in direct hire searches, predominantly…” Source: RevenueBase Database · checked Sep 29, 2026
4	American Labor Pool	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	201-500	47 contacts →
	Indirect evidence “Your resource for labor.” Source: RevenueBase Database · checked Sep 29, 2026
5	weassist.io	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	46 contacts →
	Indirect evidence “Companies today are looking for high level performers they can trust, who are diligent, hungry and willing to work, learn and become masters in their trade.” Source: RevenueBase Database · checked Sep 29, 2026
6	Talentzök	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	38 contacts →
	Partial evidence “The TalentZök family of companies, including Simply Biotech and Defense Search, are a premium specialized staffing group recognized by Inc.” Source: RevenueBase Database · checked Sep 29, 2026
7	Brio Group	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	31 contacts →
	Indirect evidence “Hire Possibilities" Brio Resource Group - Your biopharmaceutical recruiting experts - is transforming the way today's most sought after "A" Talent is introduced and placed in…” Source: RevenueBase Database · checked Sep 29, 2026
8	Tucker Parker Smith Group TPS Group	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	28 contacts →
	Partial evidence “Tucker Parker Smith Group (TPS Group) is a professional recruiting and staffing firm connecting talented people with leading employers-from Fortune 500 companies to growing…” Source: RevenueBase Database · checked Sep 29, 2026
9	Paradigm Information Services, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	26 contacts →
	Partial evidence “Paradigm is a women-owned staffing firm that specializes in finding jobs for talented professionals in fields including content development, creative design, and engineering.” Source: RevenueBase Database · checked Sep 29, 2026
10	Caltek Staffing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	20 contacts →
	Partial evidence “Founded in 2002 by two career recruiters, CalTek Staffing is a premier manufacturing, technical, IT and engineering staffing and recruiting firm.” Source: RevenueBase Database · checked Sep 29, 2026
11	A-Star Staffing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	18 contacts →
	Partial evidence “A-Star Staffing has been in business since We are the warmer, friendlier alternative to the large national firms.” Source: RevenueBase Database · checked Sep 29, 2026
12	SDI Staffing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	15 contacts →
	Partial evidence “SDI Staffing specializes in placing candidates in Direct Hire, Temp-to-Hire and Temporary positions within the Insurance Industry throughout California.” Source: RevenueBase Database · checked Sep 29, 2026
13	Transition Staffing Group	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	11-50	14 contacts →
	Partial evidence “Transition Staffing Group is an award-winning staffing agency providing Technology & Accounting/Finance staffing solutions on a Temporary, Temporary-to-Hire and Direct Hire basis.” Source: RevenueBase Database · checked Sep 29, 2026
14	Nick Deck	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	11 contacts →
	Indirect evidence “Agency owners should be focused on 3 core needle movers above all else- delivering results that retain clients and drive referrals - securing net new business - optimizing for…” Source: RevenueBase Database · checked Sep 29, 2026
15	Businesstaff	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	9 contacts →
	Partial evidence “BusinesStaff is a leading staffing firm in Southern California and works on a National level.” Source: RevenueBase Database · checked Sep 29, 2026
16	Promax Personnel LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	201-500	6 contacts →
	Partial evidence “Promax Personnel is a staffing agency dedicated to matching businesses with the most suitable talent.” Source: RevenueBase Database · checked Sep 29, 2026
17	Tristaff Search	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “TriStaff Search has now been in business in San Diego for 52 years and is still locally owned.” Source: RevenueBase Database · checked Sep 29, 2026
18	Talent Source Staffing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Talent Source is a Veteran-Owned staffing company based in San Diego, California, we connect people with businesses across all industries.” Source: RevenueBase Database · checked Sep 29, 2026
19	The Search BAR	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “The Search Bar exists to connect good people to meaningful work.” Source: RevenueBase Database · checked Sep 29, 2026
20	TED Elliott & Associates	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	11-50	4 contacts →
	Indirect evidence “Ted Elliott & Associates specializes in the placement of finance and accounting professionals on a permanent basis.” Source: RevenueBase Database · checked Sep 29, 2026
21	Performance Strata Services LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	11-50	4 contacts →
	Partial evidence “Performance Strata Services is a staffing solutions company serving homeowner associations (HOAs), property managers, luxury high-rise condos, and residential communities of all…” Source: RevenueBase Database · checked Sep 29, 2026
22	JB Search Partners	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Finding the right talent is a full time job.” Source: RevenueBase Database · checked Sep 29, 2026
23	Ingenuity Staffing	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “We provide direct hire contingency staffing services in Finance, Accounting, Tax, Audit, Bookkeeping and Human Resources.” Source: RevenueBase Database · checked Sep 29, 2026
24	Colorado Resource Solutions	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “Colorado Resource Solutions provides recruiting, temporary staffing, contract, contract-to-hire, or direct hire employees to commercial and governmental organizations.” Source: RevenueBase Database · checked Sep 29, 2026
25	Express Employment Professionals	Partial evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Overview Express Employment Professionals San Diego Downtown is a full-service staffing agency that serves its customers.” 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: staffing agencies for back office roles. 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 staffing agencies for back office roles.
Partial evidence: Its own public description names part of staffing agencies for back office roles, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name staffing agencies for back office roles. 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 63 staffing agencies for back office roles based in San Diego, United States

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Staffing agencies for back office roles based in San Diego, United States at a glance

As of Sep 29, 2026

14.0%Verified-email coverage

24.5Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, over 63 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 staffing agencies for back office roles, 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 San Diego, United States whose own description of what they do matches “staffing agencies for back office roles”. 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 staffing agencies for back office roles), 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 staffing agencies for back office roles, and records with no verified work email. Companies headquartered outside San Diego 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, 216 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.

Staffing agencies for back office roles by metro in the United States

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 staffing agencies for back office roles, 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 staffing agencies for back office roles are there based in San Diego, United States?

RevenueBase identified 63 staffing agencies for back office roles headquartered in San Diego, 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?

Eastridge Workforce Solutions, headquartered in San Diego, tops this list with the largest team on record.

Which city in the United States has the most staffing agencies for back office roles?

New York leads the United States with 418 headquartered companies, followed by Houston (240) and Atlanta (179). San Diego has 63.

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 216 verified decision-maker contacts tracked across these 63 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.