Company lists · Data refreshed September 2026
Top 25 HR outsourcing firms based in San Diego, United States
RevenueBase identified 98 HR outsourcing firms headquartered in San Diego, United States as of September 2026 and tracks 1,274 professional contacts across them, including 363 with verified work emails. Across the United States, New York is the largest hub for this category (417 companies); San Diego has 98.
This list covers HR outsourcing firms 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 30, 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.
The 25 largest HR outsourcing firms based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 213 contacts → | ||||
Indirect evidence “TEAM Risk Management Strategies is the nation’s leading provider of comprehensive, outsourced payroll and human resources services for fiduciaries and advisors whose clients have…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 113 contacts → | ||||
Partial evidence “HR starts with human.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 93 contacts → | ||||
Indirect evidence “Suna Solutions was established in 2008 to provide human capital management services including temporary and contract placements, direct hire or permanent placement services as…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 91 contacts → | ||||
Indirect evidence “Sayva Solutions is a professional services firm providing tailored solutions for businesses through project-based consulting, recruiting, and outsourced back-office functions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 55 contacts → | ||||
Indirect evidence “At PBO Advisory Group, we assess, outsource, and advise in the areas of accounting & finance, human resources, human capital consulting, and business operations to increase…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 27 contacts → | ||||
Partial evidence “OneDigital NorCal's HR and TA team partners with our clients to remove the guesswork from hiring and retaining top talent.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 24 contacts → | ||||
Indirect evidence “RPO International focuses on serving the ever-evolving needs of the recruiting industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Partial evidence “Total Package HR is the solution to all of your business's Human Resources, Payroll, Staffing and Labor Compliance needs!” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 21 contacts → | ||||
Indirect evidence “Our proprietary headhunting methodology is designed to get you unprecedented access into the passive talent pool.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Partial evidence “California HR Services is a premier Human Resources Consulting Firm, based out of San Diego, California, specializing in providing expert, practical, and cost-effective HR…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 contacts → | ||||
Indirect evidence “Nexus Contingent Workforce is an industry leader helping companies improve the way they acquire, develop, engage and manage their contingent workforce.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 contacts → | ||||
Indirect evidence “Band of Hands Connect is a B2B Distribution Platform that helps companies expand their reach through trusted professional relationships.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Indirect evidence “We are one of California's leading consulting firms, specializing in talent strategy and human capital management solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Indirect evidence “Pay-Net has been serving the San Diego business community and the nation at large since 1995.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Indirect evidence “We are people aficionados and take great pride in delivering direct-hire talent to global teams.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “Here at RISE Consulting Group, we offer outsourced accounting, financial, and other support services for privately held businesses, providing timely, accurate and actionable…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “Equip Human Solutions stands at the forefront of Business Solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Partial evidence “Strategic HR Advisory specializes in HR consulting services for small to medium-size employers.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Partial evidence “The HR Innovator Group is a dynamic and forward-thinking consulting firm specializing in human resources (HR) solutions and strategies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Indirect evidence “People Strategies has the capability to assess and prioritize your organization’s needs to achieve your business goals.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “Paradigm Business Consulting LLC is a boutique HR Management Consulting firm built for entrepreneurs who are ready to scale their small business.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Indirect evidence “We provide direct hire contingency staffing services in Finance, Accounting, Tax, Audit, Bookkeeping and Human Resources.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “Evolve1Talent is a specialized recruitment partner focused on direct hire placements across a range of industries, including healthcare, DME, medical devices, finance &…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “Pulse Recruit is a RaaS (recruiting as a service) boutique firm specializing in finding the best e-commerce talent for your business.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Leveraging two decades of experience, our firm excels in Worktech/HCM recruiting.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
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: HR outsourcing 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 HR outsourcing firms.
- Partial evidence
- Its own public description names part of HR outsourcing firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name HR outsourcing 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 98 HR outsourcing firms based in San Diego, United States
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HR outsourcing firms based in San Diego, United States at a glance
As of Sep 30, 2026Companies by employee count
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 98 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 HR outsourcing 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 San Diego, United States whose own description of what they do matches “HR outsourcing 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 HR outsourcing 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 HR outsourcing firms, 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, 363 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 30, 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.
HR outsourcing firms by metro in the United States
- HR outsourcing firms in New York417
- HR outsourcing firms in Atlanta236
- HR outsourcing firms in Houston217
- HR outsourcing firms in Los Angeles186
- HR outsourcing firms in Chicago181
- HR outsourcing firms in Dallas153
- HR outsourcing firms in Miami152
- HR outsourcing firms in Austin128
- HR outsourcing firms in San Francisco126
- HR outsourcing firms in Denver100
- HR outsourcing firms in Charlotte96
- HR outsourcing firms in Boston86
- HR outsourcing firms in Tampa86
- HR outsourcing firms in Phoenix85
- HR outsourcing firms in Orlando81
- HR outsourcing firms in Washington76
- HR outsourcing firms in Minneapolis68
- HR outsourcing firms in Philadelphia68
- HR outsourcing firms in Sheridan65
- HR outsourcing firms in Seattle61
- HR outsourcing firms in Irvine59
- HR outsourcing firms in Columbus58
- HR outsourcing firms in Portland51
- HR outsourcing firms in San Antonio50
- HR outsourcing firms in Wilmington49
- HR outsourcing firms in Las Vegas48
- HR outsourcing firms in Nashville48
- HR outsourcing firms in Plano47
- HR outsourcing firms in Raleigh46
- HR outsourcing firms in San Jose46
- HR outsourcing firms in Indianapolis42
- HR outsourcing firms in Jacksonville40
- HR outsourcing firms in Pittsburgh40
- HR outsourcing firms in St. Louis40
- HR outsourcing firms in St. Petersburg40
- HR outsourcing firms in Cincinnati39
- HR outsourcing firms in Salt Lake City36
- HR outsourcing firms in Irving34
- HR outsourcing firms in Columbia33
- HR outsourcing firms in Greenville33
- HR outsourcing firms in Sacramento33
- HR outsourcing firms in Scottsdale33
- HR outsourcing firms in Arlington32
- HR outsourcing firms in Frisco32
- HR outsourcing firms in Madison31
- HR outsourcing firms in Rochester30
- HR outsourcing firms in Baltimore29
- HR outsourcing firms in Cleveland29
- HR outsourcing firms in Detroit29
- HR outsourcing firms in Dover29
- HR outsourcing firms in Boca Raton28
- HR outsourcing firms in Fort Lauderdale28
- HR outsourcing firms in Omaha27
- HR outsourcing firms in Richmond27
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 HR outsourcing 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 HR outsourcing firms are there based in San Diego, United States?
RevenueBase identified 98 HR outsourcing firms 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?
Team Risk Management Strategies, headquartered in San Diego, tops this list with the largest team on record.
Which city in the United States has the most HR outsourcing firms?
New York leads the United States with 417 headquartered companies, followed by Atlanta (236) and Houston (217). San Diego has 98.
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 363 verified decision-maker contacts tracked across these 98 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 30, 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.
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