What is NAICS 491110?

NAICS 491110 is the federal industry code for Postal Service. The Census Bureau maintains the NAICS taxonomy; federal contracting officers use it to classify solicitations and confirm bidder eligibility.

How do I bid on federal contracts as a small business in NAICS 491110?

Register your business in SAM.gov, get a UEI, and confirm your NAICS code matches the solicitation's primary NAICS. Then write a capability statement that maps your past performance to the work in the RFP. Themis automates the matching and gives you a free AI brief for every active opportunity.

Do I need a SAM.gov registration to bid?

Yes — every federal contract award above the micro-purchase threshold requires the vendor to have an active SAM.gov registration with a Unique Entity Identifier (UEI) and the relevant NAICS codes listed on the registration.

What set-asides apply to NAICS 491110?

Common federal set-asides — Small Business (SBA), 8(a), HUBZone, SDVOSB, WOSB, EDWOSB — apply per solicitation, not per NAICS code. Each opportunity declares its own set-aside; Themis displays the eligibility class on every card so you can filter to ones you qualify for.

Federal contracts · NAICS 491110

Federal contracts for NAICS 491110 — Postal Service

Live federal + LA municipal opportunities under NAICS 491110, plus the contracting officers, top primes, and agencies that actually buy this work.

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3 active solicitations·1 federal agency·Last refreshed Jul 2, 2026

Active opportunities in NAICS 491110

Refreshed continuously from SAM.gov and partner agencies. Showing the 3 most-urgent active solicitations.

Supplies Material MgmtServices

Contract Delivery Service (CDS) HCR 97560 SELMA, OR - H060, OR

View full solicitation at SAM.gov.

Est. value

Not posted

Closes

Jul 6, 2026

Top primes in NAICS 491110

Federal primes ranked by total obligated dollars under NAICS 491110 over the last 5 fiscal years. Source: USAspending.gov.

#1
SERVICESOURCE INC2 contracts · Department of Homeland Security
$83.7M
#2
VERSABILITY RESOURCES, INC.17 contracts · Department of Defense
$59.3M
#3
NEWVIEW OKLAHOMA, INC.2 contracts · Department of Defense
$29.9M
#4
IAP WORLDWIDE SERVICES, INC.1 contract · Department of Defense
$18.1M

Agencies buying NAICS 491110

The top federal customers historically active in NAICS 491110by obligated dollars. Match your past performance to the agency that’s most likely to write your next contract.

#1
Department of Defense76 contracts
$214.0M
#2
Department of Homeland Security7 contracts
$99.9M
#3
National Aeronautics and Space Administration2 contracts
$13.6M
#4
Department of Veterans Affairs3 contracts
$13.1M

Free capability statement builder for NAICS 491110 contractors

One-page PDF in proposal-grade prose. UEI, NAICS, certifications, past performance, and differentiators — the document contracting officers actually skim during sources-sought market research. No account required.

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Frequently asked questions

What is NAICS 491110?: NAICS 491110 is the federal industry code for Postal Service. The Census Bureau maintains the NAICS taxonomy; federal contracting officers use it to classify solicitations and confirm bidder eligibility.
How do I bid on federal contracts as a small business in NAICS 491110?: Register your business in SAM.gov, get a UEI, and confirm your NAICS code matches the solicitation's primary NAICS. Then write a capability statement that maps your past performance to the work in the RFP. Themis automates the matching and gives you a free AI brief for every active opportunity.
Do I need a SAM.gov registration to bid?: Yes — every federal contract award above the micro-purchase threshold requires the vendor to have an active SAM.gov registration with a Unique Entity Identifier (UEI) and the relevant NAICS codes listed on the registration.
What set-asides apply to NAICS 491110?: Common federal set-asides — Small Business (SBA), 8(a), HUBZone, SDVOSB, WOSB, EDWOSB — apply per solicitation, not per NAICS code. Each opportunity declares its own set-aside; Themis displays the eligibility class on every card so you can filter to ones you qualify for.

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