Postal Service: NAICS 491110
Browse federal contract opportunities classified under NAICS code 491110 (Postal Service). Find active solicitations on SAM.gov, understand size standards, and discover set-aside opportunities for your business.
About NAICS 491110
Postal Service. This industry falls under the Transportation and Warehousing sector (NAICS codes beginning with 49).
Federal agencies use NAICS code 491110 when posting contract opportunities on SAM.gov to classify the type of work being solicited. Businesses that operate in the postal service space should include this code in their SAM.gov registration and capability statements to ensure they appear in relevant searches.
How to Use NAICS 491110 in Federal Contracting
To compete for federal contracts under NAICS 491110, your business should be registered in SAM.gov with this NAICS code listed in your entity profile. When agencies post solicitations for postal service work, they reference this code to determine the applicable small business size standard and any set-aside eligibility.
If you hold certifications such as 8(a), HUBZone, SDVOSB, or WOSB, you may be eligible for set-aside contracts under this NAICS code. These set-asides limit competition to certified small businesses, giving you a significant advantage in winning federal work.
FedOverwatch monitors SAM.gov daily and can automatically match you with new opportunities under NAICS 491110. Set up your profile with your NAICS codes and certifications to receive personalized contract alerts.
NAICS 491110 Market Intelligence
Based on 3 years of federal award data from USAspending.gov, the postal service market has seen 709 contract awards totaling $152.4M in value. The median contract size is $45K, with approximately 20 new awards per month.
Total Awards (3yr)
709
Total Value
$152.4M
Median Contract
$45K
Competitors
90
Contract value distribution
118 small business awards ($16.0M total value,$78K median)
90 companies compete for NAICS 491110 contracts
See who's winning, their award values, and where you fit in the market
Explore CompetitorsSize Standards
The SBA establishes size standards for each NAICS code to define what qualifies as a "small business" for federal contracting purposes. For NAICS 491110 (Postal Service), the size standard is based on either average annual receipts or number of employees, depending on the specific industry. Meeting the size standard for your primary NAICS code is required to qualify for small business set-aside contracts.
Visit the SBA Size Standards Table to find the current threshold for NAICS 491110.
Recent NAICS 491110 Opportunities
View all →TRANSPORTATION: OTHER Postal Service
TRANSPORTATION: OTHER Postal Service Co
The U.S. Postal Service is procuring Contract Delivery Service (CDS) for HCR 935D0 in Palmdale, CA. The service is set to commence on October 1, 2026, with proposals due by July 27, 2026, at 10:00 AM Mountain Time. Interested vendors must submit their proposals according to the provided instructions and terms.
The Postal Service is procuring Contract Delivery Service (CDS) for the Wasilla Carrier Annex in Alaska, with services set to begin on August 1, 2026. Proposals must be submitted by July 27, 2026, at 10:00 AM Mountain Time, and interested parties should refer to the attached Terms and Conditions and Statement of Work for submission instructions.
The Postal Service is procuring contract delivery services for route HCR 935C9 in Palmdale, California. The contractor will be responsible for providing transportation and delivery services as specified in the statement of work.
The Department of Defense is procuring US Mail Delivery Services between Incheon Airport Military Mail Terminal, Busan Military Mail Terminal, and USFK Wide Military Post Offices. Key requirements include the provision of reliable mail delivery services to support military operations in the region.
The Postal Service is procuring Contract Delivery Service (CDS) for HCR 961B5 in Truckee, CA. The service is effective March 1, 2026, with proposals due February 17, 2026.
Frequently Asked Questions
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