Company lists · Data refreshed September 2026

Top 25 Managed service providers for HR based in San Diego, United States

Name: Managed service providers for HR 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 28, 2026 81 companies tracked

RevenueBase identified 81 managed service providers for HR headquartered in San Diego, United States as of September 2026 and tracks 1,116 professional contacts across them, including 418 with verified work emails. Across the United States, New York is the largest hub for this category (227 companies); San Diego has 81.

This list covers managed service providers for HR 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 28, 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 28, 2026 86% judged on-target in blind review

81Companies

1,116Contacts tracked

418Verified emails

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The 25 largest managed service providers for HR based in San Diego, United States

Ranked by team size

Top 25 of 81 managed service providers for HR based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to managed service providers for HR: 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	Team Risk Management Strategies	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	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 28, 2026
2	Zempleo	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	153 contacts →
	Partial evidence “Zempleo helps you manage your workforce - grounded in compliance and care -with services from EoR to MSP.” Source: RevenueBase Database · checked Sep 28, 2026
3	Coastal Payroll	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	113 contacts →
	Partial evidence “HR starts with human.” Source: RevenueBase Database · checked Sep 28, 2026
4	Managed Solution	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	97 contacts →
	Partial evidence “Managed Solution was founded in 2002 and quickly earned recognition as one of San Diego’s 40 fastest-growing companies and the 27th fastest-growing IT company in Southern…” Source: RevenueBase Database · checked Sep 28, 2026
5	Bird Rock Systems	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	56 contacts →
	Indirect evidence “Your organization requires IT to help it drive innovation, profitability, and security.” Source: RevenueBase Database · checked Sep 28, 2026
6	Infracore	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	40 contacts →
	Indirect evidence “Infracore is a best-in-class Cybersecurity and IT Support Services firm.” Source: RevenueBase Database · checked Sep 28, 2026
7	ITCM	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “Founded in 1985, ITCM provides businesses with solutions that keep your IT infrastructure intact.” Source: RevenueBase Database · checked Sep 28, 2026
8	ISC Group, LLC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “At ISC, we provide comprehensive IT solutions tailored to the diverse needs of modern businesses.” Source: RevenueBase Database · checked Sep 28, 2026
9	Total Package HR	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	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 28, 2026
10	Band Of Hands	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	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 28, 2026
11	WY Technology	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	15 contacts →
	Indirect evidence “WY Technology – Complete IT Solutions for Progressive Businesses Founded in WY Technology was created to help businesses leverage technology and find innovative solutions to the…” Source: RevenueBase Database · checked Sep 28, 2026
12	Excedeo	Indirect evidence	San Diego, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Mariela Collins launched Excedeo 18 years ago because she recognized that small and mid-size companies need the full service of an in-house IT Department without the high staffing…” Source: RevenueBase Database · checked Sep 28, 2026
13	Ciprus Consulting	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	11 contacts →
	Partial evidence “IT Strategy Consulting \| Information Technology Consultants \| IT Infrastructure Management Ciprus Consulting provides world-class outsourced IT support and management to…” Source: RevenueBase Database · checked Sep 28, 2026
14	619 IT	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “619 IT is an IT Managed Services Company providing skilled technical support to San Diego businesses since 2001.” Source: RevenueBase Database · checked Sep 28, 2026
15	Pay-Net	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	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 28, 2026
16	Xonicwave	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “Xonicwave specializes in delivering premier IT Managed Services and Solutions in Southern California.” Source: RevenueBase Database · checked Sep 28, 2026
17	ALL PRO Support	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Agent Direct, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
18	Skyline IT Services, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “Skyline IT Services helps businesses stay productive, secure, and prepared through responsive support, proactive management, and practical technology guidance.” Source: RevenueBase Database · checked Sep 28, 2026
19	Strategic HR Advisory	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Strategic HR Advisory specializes in HR consulting services for small to medium-size employers.” Source: RevenueBase Database · checked Sep 28, 2026
20	Techit Services LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “YEARS OF COMBINED COMPUTER SERVICE, IT TECH SUPPORT EXPERIENCE FOR SYSTEM & NETWORK ADMINISTRATION AND MANAGEMENT.” Source: RevenueBase Database · checked Sep 28, 2026
21	Speysideit	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “SpeySide IT is an experienced IT solution provider, from complete desktop and application support to full scale data center design security and maintenance.” Source: RevenueBase Database · checked Sep 28, 2026
22	First Team IT	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “First Team IT is a full capability information technology Managed Service Provider (MSP) that prides itself on not only the knowledge and skill we bring to each engagement, but…” Source: RevenueBase Database · checked Sep 28, 2026
23	724it	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “Reliable IT Support and Service 7 days / week 24 hours / day Unforeseen business disasters can strike anytime - are you prepared?” Source: RevenueBase Database · checked Sep 28, 2026
24	SAN Diego IT Pros	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “IT Consulting firm based in San Diego, offering consulting on security, network management, infrastructure, cloud services, and more.” Source: RevenueBase Database · checked Sep 28, 2026
25	Eironclad Technology Solutions	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “eIRONclad Technology Solutions services forward thinking companies with their technology needs.” Source: RevenueBase Database · checked Sep 28, 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: managed service providers for HR. 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 managed service providers for HR.
Partial evidence: Its own public description names part of managed service providers for HR, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name managed service providers for HR. 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 81 managed service providers for HR based in San Diego, United States

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Managed service providers for HR based in San Diego, United States at a glance

As of Sep 28, 2026

37.5%Verified-email coverage

13.8Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 81 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 managed service providers for HR, 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 “managed service providers for HR”. 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 managed service providers for HR), 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 managed service providers for HR, 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, 418 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 28, 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.

Managed service providers for HR 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 managed service providers for HR, 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 managed service providers for HR are there based in San Diego, United States?

RevenueBase identified 81 managed service providers for HR 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 managed service providers for HR?

New York leads the United States with 227 headquartered companies, followed by Houston (157) and Atlanta (114). San Diego has 81.

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 418 verified decision-maker contacts tracked across these 81 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 28, 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.