Company lists · Data refreshed September 2026

Top 16 HR and payroll outsourcing companies based in San Francisco, United States

RevenueBase identified 36 company matches for HR and payroll outsourcing companies associated with San Francisco, United States as of September 2026 and tracks 4,399 professional contacts across them, including 2,360 with verified work emails. Across the United States, New York is the largest hub for this category (76 companies); San Francisco has 36.

This list covers company matches for HR and payroll outsourcing companies associated with San Francisco, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
36Companies
4,399Contacts tracked
2,360Verified emails
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The 16 largest HR and payroll outsourcing companies based in San Francisco, United States

Ranked by team size
Top 16 of 36 company matches for HR and payroll outsourcing companies based in San Francisco, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261,001-5,0003,543 contacts →

Exact match

“Gusto has been growing the small business economy for 15+ years.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 2026501-1,000258 contacts →

Exact match

“Zenefits is a part of TriNet.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 2026201-500251 contacts →

Exact match

“Workstream is the modern all-in-one HR and payroll solution built specifically for restaurants, and trusted by locations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202611-5050 contacts →

Exact match

“Plane is the payroll platform your agents and tools connect to.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202611-5019 contacts →

Exact match

“Next Level Strategies provides tactical and strategic support for all areas of Human Resources Management by the project or as an outsourced function.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“Next Gen AI Native HR & Recruiting Platform”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202611-509 contacts →

Exact match

“Compaas enabled companies be great at how they pay employees.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261-107 contacts →

Exact match

“HR MANAGEMENT SOLUTIONS - Human Resources, Payroll, Recruiting We can take on your day-to-day HR needs such as offer letters, background checks, on-boarding, resignation kits…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261-106 contacts →

Exact match

“Spending too much time dealing with employee onboarding, state reg, HR questions etc?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261-105 contacts →

Exact match

“Think of us as your first HR team.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202651-2005 contacts →

Exact match

“MXGlobal iprovides support services to all types of business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, United StatesHQ recorded Sep 21, 202611-504 contacts →

Exact match

“In today's competitive business environment, companies are constantly looking for ways to do more with less.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202611-502 contacts →

Exact match

“Juggl, our cloud-based platform, takes the hassle out of international payroll.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“At Poppy HR, we specialize in supporting startups, from small teams to those gearing up for hypergrowth.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“HR and Business Operations services focusing on helping early and growth stage startups scale.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 20261-101 contacts →

Exact match

“INTEGRA PAYROLL SOLUTIONS INC is a payroll processing company based out of 100 PINE STREET, SUITE 1250, SAN FRANCISCO, California, United States.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 16 of 36 HR and payroll outsourcing companies based in San Francisco, United States

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HR and payroll outsourcing companies based in San Francisco, United States at a glance

As of Sep 21, 2026
53.6%Verified-email coverage
122.2Average contacts per company
11-50Median size (employees)
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
14
51-200
3
201-500
1
501-1,000
1
1,001-5,000
1
10001+
1

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 36 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with San Francisco, United States whose business descriptions match “HR and payroll outsourcing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,360 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “HR and payroll outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR and payroll outsourcing companies are there based in San Francisco, United States?

RevenueBase identified 36 company matches for HR and payroll outsourcing companies associated with San Francisco, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

GUSTO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most HR and payroll outsourcing companies?

New York leads the United States with 76 company records, followed by Houston (65) and Atlanta (62). San Francisco has 36.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,360 professional contacts with verified work emails tracked across these 36 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 SmartSearch, 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.