Company lists · Data refreshed November 2026
Top 25 HR administration services based in the United States
RevenueBase identified 6,397 company matches for HR administration services associated with the United States as of November 2026 and tracks 124,017 professional contacts across them, including 41,832 with verified work emails. New York is the largest hub.
This list covers company matches for HR administration services associated with the 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 November 6, 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.
The 25 largest HR administration services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 18,792 contacts → | ||||
Exact match “As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 13,920 contacts → | ||||
Exact match “At LHH, we believe work should be meaningful, fulfilling, and connected.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 7,872 contacts → | ||||
Exact match “The City of Chicago is the third largest city in the United States, with a population of nearly three million people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 4,943 contacts → | ||||
Exact match “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 4,432 contacts → | ||||
Exact match “TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 4,083 contacts → | ||||
Exact match “Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 1,090 contacts → | ||||
Exact match “The Municipality of Anchorage Employee Relations Department provides employment services, maintains records and benefits for current and past employees, and assists departments…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 915 contacts → | ||||
Exact match “Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 883 contacts → | ||||
Exact match “Oasis, A Paychex Company, is a leading Professional Employer Organization (PEO).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 838 contacts → | ||||
Exact match “As one of this area's largest employers, the consolidated city/county government offers an exciting challenge for special people that love their community and have a strong desire…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 786 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 757 contacts → | ||||
Exact match “Trusted by more than 1 million companies, Mineral is the HR and compliance leader for growing businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 733 contacts → | ||||
Exact match “Harrisburg School District-Human Resources Department.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 723 contacts → | ||||
Exact match “Asure (NASDAQ: ASUR) sees Human Capital Management (HCM) through the lens of entrepreneurs and executives with an owner’s mentality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 665 contacts → | ||||
Exact match “ESIC Corporation is a company based out of 38 S Market St, Frederick, MD, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 611 contacts → | ||||
Exact match “We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 519 contacts → | ||||
Exact match “CoAdvantage is now CoAd.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 517 contacts → | ||||
Exact match “In today's fast-paced business landscape, multi-unit companies demand more than just basic operations-they need expert guidance and cutting-edge technology to thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 510 contacts → | ||||
Exact match “Nós nascemos no Vale do Silício e aqui aprendemos técnicas inovadoras sobre como fazer Talent Acquisition de uma forma estratégica e que gere impacto no negócio, nós não só…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 506 contacts → | ||||
Exact match “Managing a contingent workforce requires careful coordination across onboarding, compliance, and ongoing workforce operations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 481 contacts → | ||||
Exact match “PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 433 contacts → | ||||
Exact match “ProService Hawaii provides bundled HR solutions that make it easier for employers to succeed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 414 contacts → | ||||
Exact match “Headway Workforce Solutions is a leading B2B (Business to Business) provider of HR Administration Outsourcing and Talent Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 412 contacts → | ||||
Exact match “FrankCrum offers outsourced HR, payroll and payroll administration, employee benefits and benefits administration, 401(k), workers compensation and HR Solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 412 contacts → | ||||
Exact match “HR Personnel Services is a leading national staffing and executive search firm specializing exclusively in placing HR professionals.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “HR administration services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 6,397 HR administration services based in the United States
See the full list, filter by size, metro and specialty, and access 41,832 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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HR administration services based in the United States at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,397 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 the United States whose business descriptions match “HR administration services” 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 41,832 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 November 6, 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.
HR administration services by metro
- HR administration services in New York200
- HR administration services in Atlanta140
- HR administration services in Houston127
- HR administration services in Chicago91
- HR administration services in Los Angeles91
- HR administration services in Miami79
- HR administration services in Dallas70
- HR administration services in Denver65
- HR administration services in San Diego65
- HR administration services in Austin63
- HR administration services in San Francisco61
- HR administration services in Charlotte58
- HR administration services in Phoenix57
- HR administration services in Orlando54
- HR administration services in Washington53
- HR administration services in Tampa49
- HR administration services in Boston46
- HR administration services in San Antonio43
- HR administration services in Philadelphia42
- HR administration services in Las Vegas40
- HR administration services in Portland38
- HR administration services in Columbus36
- HR administration services in Minneapolis36
- HR administration services in Irvine34
- HR administration services in Seattle34
- HR administration services in Raleigh32
- HR administration services in Indianapolis30
- HR administration services in Columbia28
- HR administration services in Pittsburgh28
- HR administration services in Salt Lake City28
- HR administration services in Baltimore27
- HR administration services in Cincinnati25
- HR administration services in Jacksonville25
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 administration services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many HR administration services are there based in the United States?
RevenueBase identified 6,397 company matches for HR administration services associated with the United States as of November 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?
Paychex tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most HR administration services?
New York leads with 200 company records, followed by Atlanta (140) and Houston (127).
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 41,832 professional contacts with verified work emails tracked across these 6,397 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 6,397 HR administration services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
HR administration services by geography
- HR administration services based in Buenos Aires, Argentina
- HR administration services based in Adelaide, Australia
- HR administration services based in Brisbane, Australia
- HR administration services based in Melbourne, Australia
- HR administration services based in Perth, Australia
- HR administration services based in Sydney, Australia
- HR administration services based in Vienna, Austria
- HR administration services based in Antwerp, Belgium
- HR administration services based in Brussels, Belgium
- HR administration services based in Ghent, Belgium
- HR administration services based in Barueri, Brazil
- HR administration services based in Belo Horizonte, Brazil
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.
More company lists
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- New lists
- HR administration services based in Buenos Aires, Argentina
- HR administration services based in Adelaide, Australia
- HR administration services based in Brisbane, Australia
- HR administration services based in Melbourne, Australia
- HR administration services based in Perth, Australia
- HR administration services based in Sydney, Australia
Company intelligence · public preview
Top 25 HR administration services based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 6,397 matching company records for HR administration services based in the United States, with 124,017 tracked contacts and 41,832 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 HR administration services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Paychexpaychex.comHQ: Rochester, NY, United StatesReported employees: 10001+ | Rochester, NY, United States | 10001+ | Exact match | 18,792 contacts → |
“As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  LHHlhh.comHQ: Jacksonville, TX, United StatesReported employees: 10001+ | Jacksonville, TX, United States | 10001+ | Exact match | 13,920 contacts → |
“At LHH, we believe work should be meaningful, fulfilling, and connected.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  City Of Chicagocityofchicago.orgHQ: Chicago, IL, United StatesReported employees: 10001+ | Chicago, IL, United States | 10001+ | Exact match | 7,872 contacts → |
“The City of Chicago is the third largest city in the United States, with a population of nearly three million people.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Insperityinsperity.comHQ: Kingwood, TX, United StatesReported employees: 1,001-5,000 | Kingwood, TX, United States | 1,001-5,000 | Exact match | 4,943 contacts → |
“Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Trinettrinet.comHQ: Dublin, CA, United StatesReported employees: 1,001-5,000 | Dublin, CA, United States | 1,001-5,000 | Exact match | 4,432 contacts → |
“TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  GUSTOgusto.comHQ: San Francisco, CO, United StatesReported employees: 1,001-5,000 | San Francisco, CO, United States | 1,001-5,000 | Exact match | 4,083 contacts → |
“Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Municipality Of Anchoragemuni.orgHQ: Anchorage, AK, United StatesReported employees: 1,001-5,000 | Anchorage, AK, United States | 1,001-5,000 | Exact match | 1,090 contacts → |
“The Municipality of Anchorage Employee Relations Department provides employment services, maintains records and benefits for current and past employees, and assists departments…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  G&a Partnersgnapartners.comHQ: Houston, CA, United StatesReported employees: 501-1,000 | Houston, CA, United States | 501-1,000 | Exact match | 915 contacts → |
“Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  OASISoasisadvantage.comHQ: West Palm Beach, FL, United StatesReported employees: 501-1,000 | West Palm Beach, FL, United States | 501-1,000 | Exact match | 883 contacts → |
“Oasis, A Paychex Company, is a leading Professional Employer Organization (PEO).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Columbus Consolidated Governmentcolumbusga.orgHQ: Columbus, United StatesReported employees: 501-1,000 | Columbus, United States | 501-1,000 | Exact match | 838 contacts → |
“As one of this area's largest employers, the consolidated city/county government offers an exciting challenge for special people that love their community and have a strong desire…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Penmac Staffing Services, INCpenmac.comHQ: Springfield, KS, United StatesReported employees: Not recorded | Springfield, KS, United States | Not recorded | Exact match | 786 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Mineral, Part Of Mitratechtrustmineral.comHQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 757 contacts → |
“Trusted by more than 1 million companies, Mineral is the HR and compliance leader for growing businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Harrisburg School Districthbgsd.usHQ: Harrisburg, PA, United StatesReported employees: 1,001-5,000 | Harrisburg, PA, United States | 1,001-5,000 | Exact match | 733 contacts → |
“Harrisburg School District-Human Resources Department.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Asure Softwareasuresoftware.comHQ: Austin, TX, United StatesReported employees: 501-1,000 | Austin, TX, United States | 501-1,000 | Exact match | 723 contacts → |
“Asure (NASDAQ: ASUR) sees Human Capital Management (HCM) through the lens of entrepreneurs and executives with an owner’s mentality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Esic Corporationesiccorp.comHQ: Frederick, MD, United StatesReported employees: Not recorded | Frederick, MD, United States | Not recorded | Exact match | 665 contacts → |
“ESIC Corporation is a company based out of 38 S Market St, Frederick, MD, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Group Management Services, INCgroupmgmt.comHQ: Richfield, NC, United StatesReported employees: 501-1,000 | Richfield, NC, United States | 501-1,000 | Exact match | 611 contacts → |
“We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Coadvantagecoad.comHQ: Bradenton, FL, United StatesReported employees: 201-500 | Bradenton, FL, United States | 201-500 | Exact match | 519 contacts → |
“CoAdvantage is now CoAd.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Infosyncissvc.comHQ: Wichita, KS, United StatesReported employees: 501-1,000 | Wichita, KS, United States | 501-1,000 | Exact match | 517 contacts → |
“In today's fast-paced business landscape, multi-unit companies demand more than just basic operations-they need expert guidance and cutting-edge technology to thrive.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Anywhereanywhererecruit.comHQ: Silicon Valley, CA, United StatesReported employees: Not recorded | Silicon Valley, CA, United States | Not recorded | Exact match | 510 contacts → |
“Nós nascemos no Vale do Silício e aqui aprendemos técnicas inovadoras sobre como fazer Talent Acquisition de uma forma estratégica e que gere impacto no negócio, nós não só…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Tcwglobaltcwglobal.comHQ: San Diego, CA, United StatesReported employees: 201-500 | San Diego, CA, United States | 201-500 | Exact match | 506 contacts → |
“Managing a contingent workforce requires careful coordination across onboarding, compliance, and ongoing workforce operations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Prismhrprismhr.comHQ: Chandler, FL, United StatesReported employees: 201-500 | Chandler, FL, United States | 201-500 | Exact match | 481 contacts → |
“PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Proservice Hawaiiproservice.comHQ: Honolulu, HI, United StatesReported employees: 201-500 | Honolulu, HI, United States | 201-500 | Exact match | 433 contacts → |
“ProService Hawaii provides bundled HR solutions that make it easier for employers to succeed.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Headway Workforce Solutionsheadwaywfs.comHQ: Raleigh, NC, United StatesReported employees: Not recorded | Raleigh, NC, United States | Not recorded | Exact match | 414 contacts → |
“Headway Workforce Solutions is a leading B2B (Business to Business) provider of HR Administration Outsourcing and Talent Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Frankcrumfrankcrum.comHQ: Clearwater, FL, United StatesReported employees: 201-500 | Clearwater, FL, United States | 201-500 | Exact match | 412 contacts → |
“FrankCrum offers outsourced HR, payroll and payroll administration, employee benefits and benefits administration, 401(k), workers compensation and HR Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  HR Personnel Serviceshrpersonnelservices.comHQ: Minnetonka, MN, United StatesReported employees: Not recorded | Minnetonka, MN, United States | Not recorded | Exact match | 412 contacts → |
“HR Personnel Services is a leading national staffing and executive search firm specializing exclusively in placing HR professionals.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 6,397 company matches
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HR administration services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
6,389 records in the displayed employee bands.
8 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,397 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
HR administration services by metro
- HR administration services in New York200
- HR administration services in Atlanta140
- HR administration services in Houston127
- HR administration services in Chicago91
- HR administration services in Los Angeles91
- HR administration services in Miami79
- HR administration services in Dallas70
- HR administration services in Denver65
- HR administration services in San Diego65
- HR administration services in Austin63
- HR administration services in San Francisco61
- HR administration services in Charlotte58
- HR administration services in Phoenix57
- HR administration services in Orlando54
- HR administration services in Washington53
- HR administration services in Tampa49
- HR administration services in Boston46
- HR administration services in San Antonio43
- HR administration services in Philadelphia42
- HR administration services in Las Vegas40
- HR administration services in Portland38
- HR administration services in Columbus36
- HR administration services in Minneapolis36
- HR administration services in Irvine34
- HR administration services in Seattle34
- HR administration services in Raleigh32
- HR administration services in Indianapolis30
- HR administration services in Columbia28
- HR administration services in Pittsburgh28
- HR administration services in Salt Lake City28
- HR administration services in Baltimore27
- HR administration services in Cincinnati25
- HR administration services in Jacksonville25
Questions about this company list
What does Exact match mean for HR administration services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many HR administration services did RevenueBase find based in the United States?
The saved snapshot records 6,397 matching company records, 124,017 tracked contacts and 41,832 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
HR administration services by geography
- HR administration services based in Buenos Aires, Argentina
- HR administration services based in Adelaide, Australia
- HR administration services based in Brisbane, Australia
- HR administration services based in Melbourne, Australia
- HR administration services based in Perth, Australia
- HR administration services based in Sydney, Australia
- HR administration services based in Vienna, Austria
- HR administration services based in Antwerp, Belgium
- HR administration services based in Brussels, Belgium
- HR administration services based in Ghent, Belgium
- HR administration services based in Barueri, Brazil
- HR administration services based in Belo Horizonte, Brazil
Cite this list
RevenueBase Data Team. Top 25 HR administration services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/hr-administration-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- HR administration services based in Buenos Aires, Argentina
- HR administration services based in Adelaide, Australia
- HR administration services based in Brisbane, Australia
- HR administration services based in Melbourne, Australia
- HR administration services based in Perth, Australia
- HR administration services based in Sydney, Australia
Company intelligence · public preview
Top 25 HR administration services based in the United States
RevenueBase records 6,397 matching company records for HR administration services based in the United States, with 124,017 tracked contacts and 41,832 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 HR administration services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Paychexpaychex.com HQ: Rochester, NY, United StatesReported employees: 10001+ | Rochester, NY, United States | 10001+ | Exact match | 18,792 contacts → |
“As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | LHHlhh.com HQ: Jacksonville, TX, United StatesReported employees: 10001+ | Jacksonville, TX, United States | 10001+ | Exact match | 13,920 contacts → |
“At LHH, we believe work should be meaningful, fulfilling, and connected.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | City Of Chicagocityofchicago.org HQ: Chicago, IL, United StatesReported employees: 10001+ | Chicago, IL, United States | 10001+ | Exact match | 7,872 contacts → |
“The City of Chicago is the third largest city in the United States, with a population of nearly three million people.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Insperityinsperity.com HQ: Kingwood, TX, United StatesReported employees: 1,001-5,000 | Kingwood, TX, United States | 1,001-5,000 | Exact match | 4,943 contacts → |
“Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Trinettrinet.com HQ: Dublin, CA, United StatesReported employees: 1,001-5,000 | Dublin, CA, United States | 1,001-5,000 | Exact match | 4,432 contacts → |
“TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | GUSTOgusto.com HQ: San Francisco, CO, United StatesReported employees: 1,001-5,000 | San Francisco, CO, United States | 1,001-5,000 | Exact match | 4,083 contacts → |
“Gusto has been growing the small business economy with technology and heart for more than a decade.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Municipality Of Anchoragemuni.org HQ: Anchorage, AK, United StatesReported employees: 1,001-5,000 | Anchorage, AK, United States | 1,001-5,000 | Exact match | 1,090 contacts → |
“The Municipality of Anchorage Employee Relations Department provides employment services, maintains records and benefits for current and past employees, and assists departments…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | G&a Partnersgnapartners.com HQ: Houston, CA, United StatesReported employees: 501-1,000 | Houston, CA, United States | 501-1,000 | Exact match | 915 contacts → |
“Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | OASISoasisadvantage.com HQ: West Palm Beach, FL, United StatesReported employees: 501-1,000 | West Palm Beach, FL, United States | 501-1,000 | Exact match | 883 contacts → |
“Oasis, A Paychex Company, is a leading Professional Employer Organization (PEO).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Columbus Consolidated Governmentcolumbusga.org HQ: Columbus, United StatesReported employees: 501-1,000 | Columbus, United States | 501-1,000 | Exact match | 838 contacts → |
“As one of this area's largest employers, the consolidated city/county government offers an exciting challenge for special people that love their community and have a strong desire…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Penmac Staffing Services, INCpenmac.com HQ: Springfield, KS, United StatesReported employees: Not recorded | Springfield, KS, United States | Not recorded | Exact match | 786 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Mineral, Part Of Mitratechtrustmineral.com HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 757 contacts → |
“Trusted by more than 1 million companies, Mineral is the HR and compliance leader for growing businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Harrisburg School Districthbgsd.us HQ: Harrisburg, PA, United StatesReported employees: 1,001-5,000 | Harrisburg, PA, United States | 1,001-5,000 | Exact match | 733 contacts → |
“Harrisburg School District-Human Resources Department.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Asure Softwareasuresoftware.com HQ: Austin, TX, United StatesReported employees: 501-1,000 | Austin, TX, United States | 501-1,000 | Exact match | 723 contacts → |
“Asure (NASDAQ: ASUR) sees Human Capital Management (HCM) through the lens of entrepreneurs and executives with an owner’s mentality.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Esic Corporationesiccorp.com HQ: Frederick, MD, United StatesReported employees: Not recorded | Frederick, MD, United States | Not recorded | Exact match | 665 contacts → |
“ESIC Corporation is a company based out of 38 S Market St, Frederick, MD, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Group Management Services, INCgroupmgmt.com HQ: Richfield, NC, United StatesReported employees: 501-1,000 | Richfield, NC, United States | 501-1,000 | Exact match | 611 contacts → |
“We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Coadvantagecoad.com HQ: Bradenton, FL, United StatesReported employees: 201-500 | Bradenton, FL, United States | 201-500 | Exact match | 519 contacts → |
“CoAdvantage is now CoAd.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Infosyncissvc.com HQ: Wichita, KS, United StatesReported employees: 501-1,000 | Wichita, KS, United States | 501-1,000 | Exact match | 517 contacts → |
“In today's fast-paced business landscape, multi-unit companies demand more than just basic operations-they need expert guidance and cutting-edge technology to thrive.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Anywhereanywhererecruit.com HQ: Silicon Valley, CA, United StatesReported employees: Not recorded | Silicon Valley, CA, United States | Not recorded | Exact match | 510 contacts → |
“Nós nascemos no Vale do Silício e aqui aprendemos técnicas inovadoras sobre como fazer Talent Acquisition de uma forma estratégica e que gere impacto no negócio, nós não só…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Tcwglobaltcwglobal.com HQ: San Diego, CA, United StatesReported employees: 201-500 | San Diego, CA, United States | 201-500 | Exact match | 506 contacts → |
“Managing a contingent workforce requires careful coordination across onboarding, compliance, and ongoing workforce operations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Prismhrprismhr.com HQ: Chandler, FL, United StatesReported employees: 201-500 | Chandler, FL, United States | 201-500 | Exact match | 481 contacts → |
“PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Proservice Hawaiiproservice.com HQ: Honolulu, HI, United StatesReported employees: 201-500 | Honolulu, HI, United States | 201-500 | Exact match | 433 contacts → |
“ProService Hawaii provides bundled HR solutions that make it easier for employers to succeed.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Headway Workforce Solutionsheadwaywfs.com HQ: Raleigh, NC, United StatesReported employees: Not recorded | Raleigh, NC, United States | Not recorded | Exact match | 414 contacts → |
“Headway Workforce Solutions is a leading B2B (Business to Business) provider of HR Administration Outsourcing and Talent Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Frankcrumfrankcrum.com HQ: Clearwater, FL, United StatesReported employees: 201-500 | Clearwater, FL, United States | 201-500 | Exact match | 412 contacts → |
“FrankCrum offers outsourced HR, payroll and payroll administration, employee benefits and benefits administration, 401(k), workers compensation and HR Solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HR Personnel Serviceshrpersonnelservices.com HQ: Minnetonka, MN, United StatesReported employees: Not recorded | Minnetonka, MN, United States | Not recorded | Exact match | 412 contacts → |
“HR Personnel Services is a leading national staffing and executive search firm specializing exclusively in placing HR professionals.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 6,397 company matches
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HR administration services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
6,389 records in the displayed employee bands.
8 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 6,397 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
HR administration services by metro
- HR administration services in New York200
- HR administration services in Atlanta140
- HR administration services in Houston127
- HR administration services in Chicago91
- HR administration services in Los Angeles91
- HR administration services in Miami79
- HR administration services in Dallas70
- HR administration services in Denver65
- HR administration services in San Diego65
- HR administration services in Austin63
- HR administration services in San Francisco61
- HR administration services in Charlotte58
- HR administration services in Phoenix57
- HR administration services in Orlando54
- HR administration services in Washington53
- HR administration services in Tampa49
- HR administration services in Boston46
- HR administration services in San Antonio43
- HR administration services in Philadelphia42
- HR administration services in Las Vegas40
- HR administration services in Portland38
- HR administration services in Columbus36
- HR administration services in Minneapolis36
- HR administration services in Irvine34
- HR administration services in Seattle34
- HR administration services in Raleigh32
- HR administration services in Indianapolis30
- HR administration services in Columbia28
- HR administration services in Pittsburgh28
- HR administration services in Salt Lake City28
- HR administration services in Baltimore27
- HR administration services in Cincinnati25
- HR administration services in Jacksonville25
Questions about this company list
What does Exact match mean for HR administration services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many HR administration services did RevenueBase find based in the United States?
The saved snapshot records 6,397 matching company records, 124,017 tracked contacts and 41,832 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
HR administration services by geography
- HR administration services based in Buenos Aires, Argentina
- HR administration services based in Adelaide, Australia
- HR administration services based in Brisbane, Australia
- HR administration services based in Melbourne, Australia
- HR administration services based in Perth, Australia
- HR administration services based in Sydney, Australia
- HR administration services based in Vienna, Austria
- HR administration services based in Antwerp, Belgium
- HR administration services based in Brussels, Belgium
- HR administration services based in Ghent, Belgium
- HR administration services based in Barueri, Brazil
- HR administration services based in Belo Horizonte, Brazil
Cite this list
RevenueBase Data Team. Top 25 HR administration services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/hr-administration-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- HR administration services based in Buenos Aires, Argentina
- HR administration services based in Adelaide, Australia
- HR administration services based in Brisbane, Australia
- HR administration services based in Melbourne, Australia
- HR administration services based in Perth, Australia
- HR administration services based in Sydney, Australia