Company lists · Data refreshed September 2026
Top 12 Payroll and HR outsourcing companies based in San Diego, United States
RevenueBase identified 26 payroll and HR outsourcing companies headquartered in San Diego, United States as of September 2026 and tracks 479 professional contacts across them, including 206 with verified work emails. Across the United States, Houston is the largest hub for this category (48 companies); San Diego has 26.
This list covers payroll and HR outsourcing companies 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.
The 12 largest payroll and HR outsourcing companies based in San Diego, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 213 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 113 contacts → | ||||
Partial evidence “HR starts with human.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 21 contacts → | ||||
Strong 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 contacts → | ||||
Partial evidence “Strategic HR Advisory specializes in HR consulting services for small to medium-size employers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2 contacts → | ||||
Indirect evidence “ShinePact® is an outside consulting practice that nurtures and supports employers and their people -whether you are hiring your first employee or growing your team.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1 contacts → | ||||
Partial evidence “High-End Payroll processing, at an economical price.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 contacts → | ||||
Partial evidence “Bucher Consulting for Human Resources helps employers master HR so you can get back to business.” Source: RevenueBase Database · checked Sep 29, 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: payroll and HR outsourcing companies. 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 payroll and HR outsourcing companies.
- Partial evidence
- Its own public description names part of payroll and HR outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name payroll and HR outsourcing companies. 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 12 of 26 payroll and HR outsourcing companies based in San Diego, United States
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Payroll and HR outsourcing companies based in San Diego, United States at a glance
As of Sep 29, 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 26 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 payroll and HR outsourcing companies, 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 “payroll and HR outsourcing companies”. 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 payroll and HR outsourcing companies), 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 payroll and HR outsourcing companies, 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, 206 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.
Payroll and HR outsourcing companies by metro in the United States
- Payroll and HR outsourcing companies in Houston48
- Payroll and HR outsourcing companies in New York48
- Payroll and HR outsourcing companies in Atlanta37
- Payroll and HR outsourcing companies in Miami37
- Payroll and HR outsourcing companies in Los Angeles33
- Payroll and HR outsourcing companies in Tampa32
- Payroll and HR outsourcing companies in Denver31
- Payroll and HR outsourcing companies in Chicago27
- Payroll and HR outsourcing companies in Dallas25
- Payroll and HR outsourcing companies in Phoenix25
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 payroll and HR outsourcing companies, 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 payroll and HR outsourcing companies are there based in San Diego, United States?
RevenueBase identified 26 payroll and HR outsourcing companies 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 payroll and HR outsourcing companies?
Houston leads the United States with 48 headquartered companies, followed by New York (48) and Atlanta (37). San Diego has 26.
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 206 verified decision-maker contacts tracked across these 26 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.
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