NAICS Code 491110: Postal Service
National industry
SBA small business size standard: $9 million in average annual receipts
Definition
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.
Government contracts for this service: PSC R604 Mailing and Distribution Services
Code facts
- Part of
-
-
48-49
-
491
-
4911
- 49111
-
4911
-
491
-
48-49
- Contract awards
- 36 In the last 12 months
- Contract obligations
- $54,183,249 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 491110
- Postal delivery services, local, operated by U.S. Postal Service
- Postal delivery services, local, operated on a contract basis
- Postal services operated by U.S. Postal Service
- Postal stations operated by U.S. Postal Service
- Postal stations operated on a contract basis
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $287,129 |
| FY2026 | $53,495,467 |
| FY2025 | $54,183,249 |
| FY2024 | $52,106,896 |
| FY2023 | $49,806,706 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Servicesource Inc. | $14,265,678 | |
| 2 | Versability Resources, Inc. | $11,660,972 | |
| 3 | Servicesource Inc. | $4,883,096 | |
| 4 | Newview Oklahoma, Inc. | $3,077,583 | |
| 5 | IAP World Services, Inc. | $3,034,763 | |
| 6 | DMT Solutions Global Corporation | $2,945,205 | |
| 7 |
Korea Container Pool Co., |
$2,666,544 | |
| 8 | Fora Pathways, Inc. | $1,055,792 | |
| 9 | GPI Enterprises Inc. | $752,904 | |
| 10 | Nobis Enterprises, Inc. | $655,228 |
See the full FY2025 ranking of NAICS 491110 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Homeland Security | $18,954,132 | |
| 2 | Air Force | $18,383,075 | |
| 3 | Department of the Army | $4,292,752 | |
| 4 | Department of the Navy | $2,696,437 | |
| 5 | Department of Veterans Affairs | $2,436,976 | |
| 6 | Department of Transportation | $2,417,184 | |
| 7 | Department of Health and Human Services | $1,286,881 | |
| 8 | Department of State | $1,039,107 | |
| 9 | Department of Commerce | $825,725 | |
| 10 | National Aeronautics and Space Administration | $497,970 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | R604 Mailing and Distribution Services | $38,513,282 | |
| 2 | R613 Post Office Services | $3,811,260 | |
| 3 | R602 Courier and Messenger Services | $3,374,851 | |
| 4 | 3695 Miscellaneous Special Industry Machinery | $2,945,205 | |
| 5 | V119 Other Cargo and Freight Services | $2,666,544 | |
| 6 | R699 Other Administrative Support Services | $1,186,125 | |
| 7 |
R607 Word Processing/ |
$497,970 | |
| 8 | W074 Lease or Rental of Equipment: Office Machines, Text Processing Systems and Visible Record Equipment | $250,902 | |
| 9 | R706 Logistics Support Services | $249,366 | |
| 10 | R499 Other Professional Services | $235,325 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Maryland | $15,236,494 | |
| 2 | District of Columbia | $7,359,777 | |
| 3 | Illinois | $3,501,363 | |
| 4 | Florida | $1,728,032 | |
| 5 | Alabama | $1,122,723 | |
| 6 | Georgia | $1,059,896 | |
| 7 | New York | $1,055,792 | |
| 8 | Virginia | $779,275 | |
| 9 | Texas | $738,127 | |
| 10 | South Carolina | $731,206 | |
| 11 | Arkansas | $680,538 | |
| 12 | North Dakota | $646,511 | |
| 13 | Arizona | $633,395 | |
| 14 | Mississippi | $607,497 | |
| 15 | Nebraska | $581,673 | |
| 16 | Nevada | $568,810 | |
| 17 | North Carolina | $560,317 | |
| 18 | Ohio | $521,469 | |
| 19 | New Mexico | $495,412 | |
| 20 | Delaware | $488,722 | |
| 21 | Louisiana | $451,759 | |
| 22 | Oklahoma | $362,518 | |
| 23 | New Hampshire | $323,282 | |
| 24 | Connecticut | $272,668 | |
| 25 | Alaska | $245,813 | |
| 26 | Indiana | $193,969 | |
| 27 | Massachusetts | $141,139 | |
| 28 | Tennessee | $135,198 | |
| 29 | Washington | $98,147 | |
| 30 | Montana | $69,969 | |
| 31 | Colorado | $62,369 | |
| 32 | South Dakota | $46,328 | |
| 33 | Missouri | $1,999 | |
| 34 | Idaho | $666 |
Show all 34
Shares are of everything obligated under NAICS 491110 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 3,035 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 491110?
NAICS 491110 is Postal Service, a national industry in NAICS 48-49, Transportation and Warehousing.
What is the NAICS code for postal stations operated on a contract basis?
The NAICS code for postal stations operated on a contract basis is 491110, Postal Service.
When did the size standard for NAICS 491110 last change?
The most recent Federal Register rule on record that names NAICS 491110 in the SBA's size standards is "Small Business Size Standards: Adjustment of Monetary-Based Size Standards, Disadvantage Thresholds, and 8(a) Eligibility Thresholds for Inflation" (87 FR 69118), published Nov 17, 2022 and effective Dec 19, 2022.
How much do federal agencies spend under NAICS 491110?
Federal contracts under NAICS 491110 obligated $54,183,249 in fiscal year 2025 and $209,879,447 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 491110?
The contractors with the most obligated under NAICS 491110 in fiscal years 2026 and 2027 are Servicesource Inc. ($14,265,678); Versability Resources, Inc. ($11,660,972); and Newview Oklahoma, Inc. ($3,077,583).
Which agencies buy the most under NAICS 491110?
The agencies that obligated the most under NAICS 491110 in fiscal years 2026 and 2027 are Department of Homeland Security ($18,954,132), Air Force ($18,383,075) and Department of the Army ($4,292,752).
Which PSC codes are used with NAICS 491110?
The PSC codes with the most obligated under NAICS 491110 in fiscal years 2026 and 2027 are R604 Mailing and Distribution Services, R613 Post Office Services and R602 Courier and Messenger Services.
Where is the work under NAICS 491110 performed?
By place of performance, the states with the most contract obligations under NAICS 491110 over the last 12 months are Maryland ($15,236,494), the District of Columbia ($7,359,777) and Illinois ($3,501,363).
What is the latest contract opportunity under NAICS 491110?
The latest contract opportunity under NAICS 491110 is Contract Delivery Service (CDS) HCR 99579 CHUGIAK, AK - H079, AK, solicitation from United States Postal Service, posted October 27, 2026.
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