This industry comprises establishments primarily engaged in providing mail services under a universal service obligation. Mail services include the carriage of letters, printed matter, or mailable packages, including acceptance, collection, processing, and delivery. Due to the infrastructure requirements of providing mail service under a universal service obligation, postal service establishments often provide parcel and express delivery services in addition to the mail service. Establishments primarily engaged in performing one or more parts of the basic mail service, such as sorting, routing and/or delivery (except bulk transportation of mail) are included in this industry.
$9M receiptsSBA size standard
0open contracts now
19posted in the last 12 months
4911Postal Service
Open government contracts under NAICS 491110
Nothing is open under NAICS 491110 today. New solicitations post every day; search all open contracts or check back.
What NAICS 491110 covers
This industry comprises establishments primarily engaged in providing mail services under a universal service obligation. Mail services include the carriage of letters, printed matter, or mailable packages, including acceptance, collection, processing, and delivery. Due to the infrastructure requirements of providing mail service under a universal service obligation, postal service establishments often provide parcel and express delivery services in addition to the mail service. Establishments primarily engaged in performing one or more parts of the basic mail service, such as sorting, routing and/or delivery (except bulk transportation of mail) are included in this industry.
Not in this code
Establishments primarily engaged in providing bulk transportation of mail on a contract basis to and from postal service establishments are classified in Industry Group 4841, General Freight Trucking.
Establishments primarily engaged in providing services outside of the basic mail service, such as mail presort, mail consolidation, or address bar coding services, on a contract or fee basis are classified in U.S. Industry 561499, All Other Business Support Services.
Establishments primarily engaged in providing courier services and express delivery of parcels without operating under a universal service obligation are classified in Industry 492110, Couriers and Express Delivery Services.
Establishments primarily engaged in providing mailbox services along with other business services are classified in U.S. Industry 561431, Private Mail Centers.
Establishments primarily engaged in providing local messenger and delivery services are classified in Industry 492210, Local Messengers and Local Delivery.
SBA size standard
A business is small under NAICS 491110 if it has no more than $9 million in average annual receipts (averaged over the last five completed fiscal years, including affiliates).
Source: SBA Table of Size Standards, effective 2023-03-17. Always check the size standard printed in the solicitation itself.
Who buys it
Departments that posted the most NAICS 491110 solicitations in the last two years:
56 FSS Postal Service Center Support · Department of Defense · Arizona · posted August 31, 2026
Contract Delivery Service (CDS) HCR 99863 SITKA MAIN OFFICE, AK - H063, AK · Postal Service · Alaska · posted August 29, 2026
GSA OASIS 8(a)- Mail Distribution and Management Services For NSA Crane · Department of Defense · Indiana · posted August 27, 2026
Contract Delivery Service (CDS) HCR 96178 RAVENDALE, CA - H078, CA · Postal Service · California · posted August 17, 2026
Contract Delivery Service (CDS) HCR 96162 RAVENDALE, CA - H062, CA · Postal Service · California · posted August 17, 2026
Contract Delivery Service (CDS) HCR 996E6 WASILLA CARRIER ANNEX, AK - H032, AK · Postal Service · Alaska · posted July 16, 2026
Contract Delivery Service (CDS) HCR 935D0 PALMDALE, CA - H082, CA · Postal Service · California · posted July 15, 2026
Contract Delivery Service (CDS) HCR 935C9 PALMDALE, CA - H046, CA · Postal Service · California · posted July 15, 2026
Do this kind of work?
Send XL Eagle your price on an open postal service job. We write and submit the bid under our registrations. If we win, you do the work at your price. No fees.
NAICS 491110 is Postal Service. This industry comprises establishments primarily engaged in providing mail services under a universal service obligation. Mail services include the carriage of letters, printed matter, or mailable packages, including acceptance, collection, processing, and delivery. Due to the infrastructure requirements of providing mail service under a universal service obligation, postal service establishments often provide parcel and express delivery services in addition to the mail service. Establishments primarily engaged in performing one or more parts of the basic mail service, such as sorting, routing and/or delivery (except bulk transportation of mail) are included in this industry.
What is the SBA size standard for NAICS 491110?
The size standard for NAICS 491110 is $9 million in average annual receipts. Firms at or under it count as small businesses for contracts assigned this code.
Are there government contracts for postal service?
None are open under NAICS 491110 today, but 19 were posted in the last 12 months. New ones post daily.
Can I bid on NAICS 491110 contracts without registering in SAM.gov?
You need an active SAM.gov registration to win a federal contract in your own name. If you would rather skip that, XL Eagle can bid as the prime contractor using your price, and you do the work as our subcontractor.
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