PSC R431: Support – Professional: Human Resources
R431 is the product and service code (PSC) federal agencies use for support – professional: human resources, in the professional services group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 2
- Spending, FY2026
- $325.9 million
- Share to small businesses
- 53%
Open contracts with PSC R431, due soonest
- PTOEA RFI: USPTO seeks a Contractor for Executive Recruitment Services
✦ The U.S. Patent and Trademark Office (USPTO) is doing market research for an executive search firm.
Due in 11 daysOct 22, 2026
- NGA HRM-II RFP
✦ The National Geospatial-Intelligence Agency (NGA) wants one contractor to provide on-site human resources support for its Human Development Directorate in Springfield, VA,…
Due in 15 daysOct 26, 2026
Where R431 sits in the PSC Manual
- Category: Service
- Group R: Support SVCS (Prof, Admin, MGMT)
- Group R4: Professional Services
- Code R431: Support – Professional: Human Resources
NAICS codes used with PSC R431
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with R431 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 541612 | Human Resources Consulting Services | $525.2 million |
| 541611 | Administrative Management and General Management Consulting Services | $225.2 million |
| 611430 | Professional and Management Development Training | $116.5 million |
| 541330 | Engineering Services | $59.6 million |
| 561312 | Executive Search Services | $38.2 million |
| 541990 | All Other Professional, Scientific, and Technical Services | $34.8 million |
Who buys under PSC R431
Agencies with the most contract dollars under R431 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Transportation Security Administration | $135.6 million |
| Office of the Secretary | $126.5 million |
| Department of Veterans Affairs | $110.5 million |
| Federal Acquisition Service | $77.3 million |
| U.S. Customs and Border Protection | $58.4 million |
| Department of the Navy | $46.8 million |
| Department of the Army | $38 million |
| Agency for International Development | $38 million |
On open notices right now, the most R431 work comes from Department of Commerce and Dept of Defense.
Federal spending under PSC R431 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $515 million |
| FY2025 | $365.8 million |
| FY2026 | $325.9 million |
| FY2027 (so far) | $56,880 |
Who wins PSC R431 contracts
| Company | Obligated, last 3 years |
|---|---|
| Deloitte Consulting LLP | $210.3 million |
| Calibre Systems Inc | $71.3 million |
| Your Recruiting Company, Inc. | $70.9 million |
| Golden Key Group, LLC | $66.4 million |
| International Business Machines Corporation | $46.5 million |
| Acuity International, LLC | $38.4 million |
| Heidrick & Struggles International Inc | $33.3 million |
| Eap Consultants, LLC | $28.5 million |
| R3 Government Solutions, LLC | $24.7 million |
| Strategic Data Systems, Inc. | $24.2 million |
Related PSC codes
- R401 Support – Professional: Personal Care (Non – Medical)
- R402 Support – Professional: Real Estate Brokerage
- R403 Real Estate Brokerage Services
- R404 Support – Professional: Land Surveys – Cadastral (Non – Construction)
- R405 Support – Professional: Operations Research/Quantitative Analysis
- R406 Support – Professional: Policy Review/Development
- R407 Program Evaluation Services
- R408 Support – Professional: Program Management/Support
- R409 Program Review/Development Services
- R410 Support – Professional: Program Evaluation/Review/Development
Frequently asked questions
What is PSC R431?
R431 is the service code in the federal Product and Service Code (PSC) Manual for support – professional: human resources, under R (Support SVCS (Prof, Admin, MGMT)) and R4 (Professional Services). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC R431?
Most federal contract dollars under PSC R431 go with NAICS 541612 (Human Resources Consulting Services), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC R431?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 2 open notices use PSC R431 right now. FedReady can match new ones to your business and email you, free.