Company lists · Data refreshed September 2026
Top 25 HR outsourcing services based in Houston, United States
RevenueBase identified 113 HR outsourcing services headquartered in Houston, United States as of September 2026 and tracks 1,936 professional contacts across them, including 867 with verified work emails. Across the United States, New York is the largest hub for this category (201 companies); Houston has 113.
This list covers HR outsourcing services headquartered in Houston, 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 26, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest HR outsourcing services based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 840 contacts → | ||||
Partial evidence “Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 2 | 283 contacts → | ||||
Partial evidence “At Employer Flexible, we’re a Professional Employer Organization (PEO) that helps businesses simplify HR, payroll, benefits, risk management, and compliance, so you can focus on…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 3 | 127 contacts → | ||||
Partial evidence “Flight Services International (FSI) is a human resource outsourcing company based in Houston, Texas.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 contacts → | ||||
Indirect evidence “At Achilles Group we “Equip Leaders to Make Smart People Decisions”.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 5 | 70 contacts → | ||||
Indirect evidence “FlexTek Delivers Modern 360° Hiring as a Service Our expertise across the broad landscape of modern recruiting, hiring, staffing and onboarding delivers flexible solutions to meet…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 6 | 69 contacts → | ||||
Partial evidence “For nearly 25 years, HR & P has provided employers with a broad range of administrative services and human resource technologies.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 7 | 47 contacts → | ||||
Indirect evidence “LaneStaffing delivers employment, human resource and business solutions across North America.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 contacts → | ||||
Indirect evidence “At Amass Solutions, we help your company develop and maintain its unique competitive advantage by devising and implementing strong human capital systems that attract, motivate…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 9 | 26 contacts → | ||||
Indirect evidence “EHC is a national professional services and consulting firm providing end-to-end solutions in all areas of Human Capital Management.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 10 | 26 contacts → | ||||
Partial evidence “Providing outsourcing services that are all integral to core business processes and keeps the business running seamlessly while allowing management to focus on core business…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 11 | 20 contacts → | ||||
Indirect evidence “Our approach is simple: Understand your current situation, identify where you want to go, and develop practical solutions to facilitate your talent.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Indirect evidence “Elite Corporate Solutions is an absolute business services provider specialized in the staffing area for administrative, professional and IT requirements.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Indirect evidence “At Octagon Consulting, LLC, we are dedicated to serving a diverse range of private, public, and social sector institutions.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Indirect evidence “StaffBox Corp.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Partial evidence “Smarter HR Solutions' consultants and trainers have over 60 years of combined experience in Human Resources core competencies and Training and Development.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence “ElevationHR, LLC provides entrepreneurs a peace of mind as they elevate their business.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence “We offer a range of full service solutions for businesses including: • Full Cycle Recruiting • Policies and Handbooks • Performance Management • Talent Development • Compliance •…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Indirect evidence “Kensington Group provides a variety of cost-effective services to assist businesses with different Human Resources functions.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Indirect evidence “R2R is a privately held Global management consulting and temporary staffing services firm specializing in Cloud HCM implementation and staff augmentation, technology services, and…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 contacts → | ||||
Partial evidence “At ClickOnHR, we are your On Demand HR business partner.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Indirect evidence “Are you working with one of those giant payroll companies?” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Partial evidence “Our HR Services can serve as your HR department or compliment your existing HR team or company.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Indirect evidence “ProvisHR is a solutions-focused human resources and management consulting firm specializing in creating measurable success through deliberate, creative, and effective human…” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “Armed with over 25 years of human resource experience, Veaux Professional Services (VPS) focuses on bringing the human interaction back into human resources.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “HR Ally believes in your mission and the value you deliver to Texas.” Source: RevenueBase Database · checked Sep 26, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: HR outsourcing services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names HR outsourcing services.
- Partial evidence
- Its own public description names part of HR outsourcing services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name HR outsourcing services. 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 113 HR outsourcing services based in Houston, United States
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HR outsourcing services based in Houston, United States at a glance
As of Sep 26, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 113 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among HR outsourcing services, 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 Houston, United States whose own description of what they do matches “HR outsourcing services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names HR outsourcing services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among HR outsourcing services, and records with no verified work email. Companies headquartered outside Houston 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, 867 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 26, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
HR outsourcing services by metro in the United States
- HR outsourcing services in New York201
- HR outsourcing services in Atlanta135
- HR outsourcing services in Los Angeles102
- HR outsourcing services in Chicago94
- HR outsourcing services in Miami85
- HR outsourcing services in San Francisco74
- HR outsourcing services in Austin73
- HR outsourcing services in Dallas71
- HR outsourcing services in Denver59
- HR outsourcing services in San Diego59
- HR outsourcing services in Charlotte56
- HR outsourcing services in Tampa49
- HR outsourcing services in Phoenix48
- HR outsourcing services in Boston45
- HR outsourcing services in Washington45
- HR outsourcing services in Orlando44
- HR outsourcing services in San Antonio39
- HR outsourcing services in Columbus38
- HR outsourcing services in Portland37
- HR outsourcing services in Raleigh33
- HR outsourcing services in San Jose33
- HR outsourcing services in Irvine31
- HR outsourcing services in Minneapolis30
- HR outsourcing services in Nashville29
- HR outsourcing services in Las Vegas28
- HR outsourcing services in Seattle28
- HR outsourcing services in Salt Lake City26
- HR outsourcing services in Indianapolis25
- HR outsourcing services in Plano25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names HR outsourcing services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many HR outsourcing services are there based in Houston, United States?
RevenueBase identified 113 HR outsourcing services headquartered in Houston, 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?
G&a Partners, headquartered in Houston, tops this list with the largest team on record.
Which city in the United States has the most HR outsourcing services?
New York leads the United States with 201 headquartered companies, followed by Atlanta (135) and Houston (113).
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 867 verified decision-maker contacts tracked across these 113 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 26, 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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