PSC R426: Support – Professional: Communications
R426 is the product and service code (PSC) federal agencies use for “Support – Professional: Communications”, 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
- Federal contract spending, FY2025
- $571.1 million
- Share of contract dollars to small businesses, since FY2024
- 27%
Open count as of Nov 7, 2026, 2:29 AM ET. The search counts live, so its total can differ by a notice or two.
Open PSC R426 contracts with 2+ days to respond
- SeaPort: CNSP PA/VI Support Services
Due in 2 daysNov 9, 2026, 10:00 AM PST
- Hospital Communications Support
✦ The Defense Health Agency, for Walter Reed National Military Medical Center in Bethesda, Maryland, wants a contractor to supply 7 full-time staff for hospital communications and…
Due in 2 daysNov 9, 2026, 3:00 PM EST
Where R426 sits in the PSC Manual
- Category: Service
- Group R: Support SVCS (Prof, Admin, MGMT)
- Group R4: Professional Services
- Code R426: Support – Professional: Communications
NAICS codes used with PSC R426
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with R426 most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC R426 |
|---|---|---|---|
| 541810 | Advertising Agencies | $877.2 million | — |
| 541330 | Engineering Services | $271.4 million | 1 |
| 517112 | Wireless Telecommunications Carriers (except Satellite) | $233.3 million | — |
| 541511 | Custom Computer Programming Services | $226.5 million | — |
| 517311 | Wired Telecommunications Carriers (old code; now 517111) | $121.8 million | — |
| 541519 | Other Computer Related Services | $110.3 million | — |
| 541611 | Administrative Management and General Management Consulting Services | — | 1 |
Open contracts under each code, with any PSC: NAICS 541810 · NAICS 541330 · NAICS 517112 · NAICS 541511 · NAICS 541519 · NAICS 541611
Who buys under PSC R426
Agencies with the most contract dollars under R426 over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Centers for Medicare and Medicaid Services | $703 million |
| Department of the Air Force | $461 million |
| Defense Information Systems Agency | $287.7 million |
| Food and Drug Administration | $220 million |
| Department of Veterans Affairs | $113.3 million |
| U.S. Citizenship and Immigration Services | $107.3 million |
| Federal Acquisition Service (GSA) | $105.1 million |
| National Institutes of Health | $76.3 million |
Federal spending under PSC R426 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $1.3 billion |
| FY2025 | $571.1 million |
| FY2026 (incomplete) | $601.7 million |
Headline figures use FY2025, the last complete year. FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed. FY2027 began October 1, 2026; it's left out until Defense data for it starts to arrive.
Who wins PSC R426 contracts
| Company | Obligated, last 3 years |
|---|---|
| IPG DXTRA, Inc. | $379.4 million |
| General DynamicsCombined: General Dynamics Mission Systems, Inc. and General Dynamics Information Technology, Inc. | $337.4 million |
| True North Communications Inc | $210.7 million |
| Porter Novelli Public Services Inc. | $179 million |
| Full Spectrum Operations LLC | $120.5 million |
| Verizon Business Network Services LLC | $108.6 million |
| KBR Wyle Services, LLC | $95.9 million |
| T-Mobile Secure Federal Operations LLC | $64.2 million |
| AT&T Enterprises, LLC | $56.1 million |
Linked names have a FedReady profile, which shows the NAICS codes a business is registered as small under. Most large companies have none.
Large prime contractors (companies that hold the contract with the agency) subcontract part of their work to small businesses. See which primes subcontract, by NAICS code.
Research PSC R426 work
By the NAICS codes this work goes with, the one with the most spending first: who won recently, contracts ending soon, agencies' planned buys and the large primes that subcontract it, nationwide. Each code shows only the pages that exist for it:
- 541810 Advertising Agencies: who won recently · planned buys · large primes that subcontract. Not available for 541810 yet: contracts ending in the next 12 months. Its NAICS page shows who buys it.
- 541330 Engineering Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 517112 Wireless Telecommunications Carriers (except Satellite): who won recently · planned buys · large primes that subcontract
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 R426?
R426 is the service code in the federal Product and Service Code (PSC) Manual named “Support – Professional: Communications”, 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 R426?
Most federal contract dollars under PSC R426 go with NAICS 541810 (Advertising Agencies), 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 R426?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 2 open notices use PSC R426 right now. FedReady can match new ones to your business and email you, free.
Keep going
Sources: SAM.gov Contract Opportunities, USAspending.gov and the PSC Manual. How we count.