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NAICS Code· 491110

NAICS 491110: 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. Cross-References. Establishments primarily engaged in--Show more

NAICS 491110 – Postal Service encompasses the operation and support of mail and package delivery systems, including sorting, transportation, routing, and distribution of postal matter under the authority of the United States Postal Service. While primarily associated with the USPS itself, this NAICS code also covers contracted services that enable postal infrastructure, such as logistics support, fleet maintenance, mail processing automation, secure document handling, and last-mile delivery solutions.

17
Active Contracts
$18.2M
Total Obligations (12mo)
67
Awarded Contracts (12mo)
20
Contractors Awarded (12mo)
1
Median Bidders per Award
-55.5%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 491110.

AI Industry Description

NAICS 491110 – Postal Service encompasses the operation and support of mail and package delivery systems, including sorting, transportation, routing, and distribution of postal matter under the authority of the United States Postal Service. While primarily associated with the USPS itself, this NAICS...

NAICS 491110 – Postal Service encompasses the operation and support of mail and package delivery systems, including sorting, transportation, routing, and distribution of postal matter under the authority of the United States Postal Service. While primarily associated with the USPS itself, this NAICS code also covers contracted services that enable postal infrastructure, such as logistics support, fleet maintenance, mail processing automation, secure document handling, and last-mile delivery solutions. In the federal contracting landscape, this code represents a specialized niche where operational continuity, regulatory compliance, and nationwide reach are critical. Contractors in this space often provide mission-critical support to ensure the reliable movement of sensitive and non-sensitive mail across federal agencies, including classified and diplomatic correspondence. Top contractors in this sector include D2 GOVERNMENT SOLUTIONS, INC., a small business specializing in logistics and postal support services for federal clients. The competitive landscape is dominated by firms with expertise in government logistics, supply chain management, and secure transportation, with a strong presence of small businesses and service-oriented primes leveraging specialized certifications. Primary awarding agencies include the U.S. Postal Service, the Department of State, and the Department of Defense. These agencies rely on postal services for secure mail distribution, diplomatic pouch transport, veteran correspondence, and military personnel mail systems. Demand is driven by the need for reliable, auditable, and secure mail handling across domestic and international operations. The market is characterized by steady, recurring demand with low volatility, as postal operations are essential to federal continuity. Opportunities exist for contractors with experience in federal logistics, automated mail systems, and compliance with postal regulations such as USPS Handbook M-41. Contracting is highly relationship-driven, with incumbency and proven performance in secure mail environments providing significant advantages.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 491110 work as a small business.

$9.0M
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Top Contractors

Companies with the highest total award value under NAICS 491110, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
KOREA CONTAINER POOL CO.,LTD$9.0M2
VERSABILITY RESOURCES, INC.$4.9M13
PITNEY BOWES INC.$829K3
SERVICESOURCE INC$788K2
MISSISSIPPI GOODWORKS INC$519K1
UNITED STATES POSTAL SERVICE$360K1
MISCELLANEOUS FOREIGN AWARDEES$322K23
GOODWILL INDUSTRIES OF THE CHESAPEAKE, INC$307K1
THE PITNEY BOWES BANK, INC.$263K10
JBW GROUP LLC$257K1

Top Agencies

Federal agencies directing the most contract spending toward NAICS 491110.

0411 Aq Hq Contract Augmented1 award$8.5M
Department Of Defense21 awards$6.8M
Department Of Transportation2 awards$699K
Department Of Commerce1 award$599K
Department Of State27 awards$378K
Department Of The Treasury1 award$360K
Department Of Health And Human Services11 awards$313K
Department Of Homeland Security1 award$307K
US Embassy Muscat1 award$208K
Department Of Justice1 award$302.16

Competition

How many companies historically bid on federal awards in NAICS 491110, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 6,071 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

90%

Share of reported awards with one bidder

10+ Bidder Awards

1%

Share of reported awards with 10+ bidders

Reported Awards

0

87% of 6,947 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
491110This Code
Postal Service
Usually Single-Bid190%
6,07187% of 6,947
49111NAICS Industry
Usually Single-Bid190%
6,07187% of 6,947
4911Industry Group
Postal Service
Usually Single-Bid190%
6,07187% of 6,947
491Subsector
Usually Single-Bid190%
6,07187% of 6,947
49Sector
Transportation and Warehousing
Moderate Competition417%
253,30141% of 624,362

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Postal Service, by shared sector, subsector, and industry group.

Couriers and Express Delivery Services

This industry comprises establishments primarily engaged in providing air, surface, or combined mode...
492110Same SectorMedium Similarity

Local Messengers and Local Delivery

This industry comprises establishments primarily engaged in providing local messenger and delivery s...
492210Same SectorMedium Similarity

General Warehousing and Storage

This industry comprises establishments primarily engaged in operating merchandise warehousing and st...
493110Same SectorMedium Similarity

Refrigerated Warehousing and Storage

This industry comprises establishments primarily engaged in operating refrigerated warehousing and s...
493120Same SectorMedium Similarity

Farm Product Warehousing and Storage

This industry comprises establishments primarily engaged in operating bulk farm product warehousing ...
493130Same SectorMedium Similarity

Other Warehousing and Storage

This industry comprises establishments primarily engaged in operating warehousing and storage facili...
493190Same SectorMedium Similarity

Explore contracts across multiple NAICS codes Browse all NAICS Codes

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NAICS 491110 FAQ

Frequently Asked Questions

NAICS code 491110 covers 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. Cross-References. Establishments primarily engaged in--

Recently Posted in Postal Service

NAICS: 491110
New
International
Post Office Branch - Cardross
Solicitation # 2026/S 000-092556
Post Office Limited is seeking a retailer for the Cardross branch to either purchase the existing business or integrate a Post Office Local into a new or current retail operation. The goal is to embed post office counter services into a sustainable business to ensure consistent opening hours, with the final layout and design to be mutually agreed upon. This concession contract is particularly suited for small and medium-sized enterprises and is estimated to run for 50 years, from January 30, 2027, to January 30, 2077. The estimated annual fees for the location range between 12,100 and 13,500 British Pounds. The procurement follows a competitive flexible procedure with a submission deadline of October 10, 2026. Award decisions are based on a multi-stage quality assessment, beginning with a mandatory pass/fail evaluation of the candidate's business plan and finances. Only applicants who pass this financial screening will proceed to the second stage, which assesses their overall suitability to operate a Post Office branch. Electronic submissions in English are permitted and should be directed to the postmaster onboarding team.
Post Office Limited

POSTED

5 days ago

DEADLINE

in 5 days
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NAICS: 491110
New
International
Post Office Branch - Cefn Y Bedd
Solicitation # 2026/S 000-092548
Post Office Limited is seeking a retailer to integrate a Post Office Local into an existing or proposed business in the Flintshire and Wrexham area, specifically for the Cefn Y Bedd branch. The objective is to embed post office counter services into a sustainable retail environment where both the business and postal services share the same operating hours. The layout and design of the facility will be mutually agreed upon to fit the retailer's specific business needs. This concession contract is estimated to run for a 50-year term from January 30, 2027, to January 30, 2077, with estimated annual fees ranging between 8,000 and 14,000 GBP. The procurement follows a competitive flexible procedure under a light-touch regime and is particularly suited for small and medium-sized enterprises. The award process is multi-staged, beginning with a mandatory pass/fail financial assessment of the candidate's business plan and finances. Only those who pass this initial stage will proceed to a suitability assessment to determine their capability to operate a post office branch. Interested parties must submit their electronic applications in English by the deadline of October 10, 2026.
Post Office Limited

POSTED

5 days ago

DEADLINE

in 5 days
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NAICS: 491110
New
SLED
Mail-Back Logistics and Courier ServicesThe Mail-Back Logistics and Courier Services subcontract involves the shipping, sorting, and delivery of prohibited items for prime contractors operating on Massachusetts Port Authority airport projects. The selected provider will be responsible for collecting packages from Mail Back Units, processing all necessary postage and shipping labels, and coordinating with national carriers to ensure final delivery to the end customer. Due to the sensitive nature of the work environment, all personnel are required to obtain TSA security clearance and appropriate airport badging for site access. This opportunity is categorized under NAICS code 491110 and is managed through the Massachusetts Port Authority Goods and Services agency, with a response deadline set for November 12, 2026.
Massachusetts Port Authority - Goods & Services

POSTED

5 days ago

DEADLINE

in about 1 month
View Details
NAICS: 491110
New
Grant
Postage and Mailing ServicesThis subcontract, issued by the Department of Labor's Employment and Training Administration, focuses on the provision of high-volume mailing and postage services. The primary objective is to manage the printing and distribution of official government correspondence and notifications intended for claimants and employers within state workforce agencies that receive DOL funding. The contract falls under NAICS code 491110 and requires the delivery of completed bulk mailing services. Interested parties should note that the response deadline is set for October 30, 2026, following a posting date of September 30, 2026.
Employment And Training Administration

POSTED

5 days ago

DEADLINE

in 25 days
View Details
NAICS: 491110
New
Federal
Contract Delivery Service (CDS) HCR 84085 DUCHESNE, UT - H063, UT
Solicitation # 810-1476-26
The United States Postal Service is soliciting proposals for regular box route transportation services under contract HCR 84085, operating between Duchesne, UT and H063, UT. The contract term runs from November 28, 2026, through June 30, 2032. The selected supplier will be responsible for the secure and timely transport of mail, adhering to a fixed operating schedule with trips averaging 98.2 miles and casing requirements for 610 boxes. Required equipment includes at least one vehicle with a minimum of 120 cubes, equipped with roof-mounted warning lights and cellular communication capabilities. Proposals must be submitted electronically to Patrick A. Struthers by 10:00 AM Mountain Time on October 19, 2026. The evaluation process is based on best value, prioritizing technical factors—specifically past performance, supplier capability, and the operations plan—over price. Eligible offerors must be at least 18 years old with two years of driving experience and must submit a comprehensive package including PS Form 7405, PS Form 7468A, and various certifications. The contract is subject to Department of Labor prevailing wage determinations and requires strict adherence to safety and confidentiality standards.
Supplies Material Management

POSTED

6 days ago

DEADLINE

in 14 days
View Details
NAICS: 491110
New
Federal
Contract Delivery Service (CDS) HCR 95976 PARADISE, CA - H004, CA
Solicitation # 810-1466-26
The United States Postal Service is soliciting proposals for Contract Delivery Service (CDS) regular box route transportation on route HCR 95976, operating between Paradise, California, and H004, California. The contract term is scheduled to run from November 12, 2026, through September 30, 2032. The selected supplier will be responsible for the secure and timely transport of all tendered mail, requiring a 120-cube vehicle equipped with roof-mounted warning lights and cellular communication. Daily service is required except on Sundays and holidays, with a specific schedule departing Paradise at 0922 and arriving at H004 at 1139. Proposals must be submitted electronically to Patrick A. Struthers by October 7, 2026, at 10:00 AM Mountain Time. The evaluation process utilizes a best-value trade-off method where technical factors—specifically past performance, supplier capability, and the operations plan—are weighted more heavily than price. Eligible offerors must be at least 18 years old with two years of driving experience and must not be current USPS employees. Required submission documents include PS Form 7405 and the PS Form 7468A cost worksheet. The contract is subject to Department of Labor Service Contract Act wage determinations and requires strict adherence to safety standards and background investigations for all personnel.
Supplies Material Management

POSTED

6 days ago

DEADLINE

in 2 days
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NAICS: 491110
Closed
SLED
Direct Mail and Mailing ManagementThis subcontract for Direct Mail and Mailing Management involves providing comprehensive processing, addressing, and mailing services for printed materials on behalf of prime contractors for State of Michigan print management projects. The scope of work includes managing the sorting and distribution of deliverables through the use of specialized mailing software, addressing equipment, and postage management systems to ensure the successful delivery of correspondence. The project is managed under the Department of Technology, Management and Budget for the State of Michigan and falls under NAICS code 491110. All operations must strictly comply with USPS standards and the specific mail management terms established by the State of Michigan. The solicitation was posted on September 28, 2026, with a response deadline of October 2, 2026.
DTMB

POSTED

7 days ago

CLOSED

3 days ago
View Details
NAICS: 491110
SLED
Managed Fax ServicesThis subcontract for Managed Fax Services supports prime contractors on Haralson County local government projects in Georgia. The selected provider is responsible for the provision and maintenance of 12 fax service lines utilizing cloud-faxing platforms or digital fax-to-email gateways. A primary focus of the agreement is ensuring the secure delivery of faxed documents and the seamless integration of these services with the existing county IT infrastructure. The contract falls under NAICS code 491110 and was posted by the Haralson County Government. Interested parties must submit their responses by October 27, 2026, at 5:00 PM. The scope of work specifically requires the delivery of active fax service for all 12 designated lines to maintain operational communications for the county.
Haralson County Government

POSTED

10 days ago

DEADLINE

in 22 days
View Details
NAICS: 491110
Awarded
International
Post Office Branch - East Ayton
Solicitation # 2026/S 000-090764
Post Office Limited has issued a direct award contract for the Post Office branch located in East Ayton to JRS SERVICES (FORECOURTS) LIMITED. The purpose of this arrangement is to ensure the continuity of essential services by having a retailer either purchase the existing business or integrate a Post Office branch into their current or proposed operations. The contract is valued at 52,650 pounds including VAT, which aligns with the estimated annual fees for the location. The agreement is set to commence on October 8, 2026, with an estimated duration of 50 years.
Post Office Limited

POSTED

11 days ago

DEADLINE

N/A
View Details
NAICS: 491110
Closed
SLED
Mail Processing and Fulfillment ServicesThis subcontract for Mail Processing and Fulfillment Services involves the sorting, addressing, and mailing of State documents for prime contractors on State of Michigan PMM projects. The service provider is responsible for managing mail streams and utilizing high-speed mailing equipment and addressing software to ensure the successful delivery of processed correspondence. To be eligible, providers must be pre-qualified with PMM and registered as a vendor with the State of Michigan. Strict adherence to State Data confidentiality policies is required. This opportunity is managed by the DTMB for the State of Michigan under NAICS code 491110, with a response deadline of September 30, 2026.
DTMB

POSTED

11 days ago

CLOSED

5 days ago
View Details
NAICS: 491110
SLED
Mailing and Fulfillment ServicesThis subcontract for Mailing and Fulfillment Services supports prime contractors on projects for the North Carolina Department of Revenue. The selected provider will be responsible for the final packaging and logistics of assembled coupon books, which includes inserting them into mailing envelopes and applying the necessary addresses and postal barcodes. The contractor must utilize automated inserting and enveloping machinery to ensure efficiency and accuracy. All completed envelopes must be delivered to the United States Postal Service in strict accordance with USPS regulations for bulk mailing. This opportunity was posted on September 23, 2026, with a response deadline of October 21, 2026.
Department of Revenue

POSTED

12 days ago

DEADLINE

in 16 days
View Details
NAICS: 491110
SLED
Mailing and Fulfillment ServicesThis subcontract for Mailing and Fulfillment Services supports California State University, Sacramento by providing comprehensive logistics for the distribution of printed diplomas and certificates. The selected provider will be responsible for the addressing, stuffing, and sealing of documents using specialized mailing software and automated folding equipment to ensure accurate postal delivery to graduates. The contract requires the service provider to coordinate the entire mailing process and provide confirmed delivery of all documents to the end recipients. This opportunity is categorized under NAICS code 491110, with a response deadline set for November 8, 2026.
CSU, Sacramento

POSTED

13 days ago

DEADLINE

in about 1 month
View Details

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