NAICS 491: Postal Service
Subsector
Code facts
- Part of
-
- 48-49
- Codes under it
- 1
- Contract awards
- 34 In the last 12 months
- Contract obligations
- $54,183,249 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $53,311,391 |
| 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. | $11,557,001 | |
| 3 | Servicesource Inc. | $4,680,613 | |
| 4 | IAP World Services, Inc. | $3,298,995 | |
| 5 | Newview Oklahoma, Inc. | $3,077,583 | |
| 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 491 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 | $18,540,953 | |
| 3 | Department of the Army | $4,254,142 | |
| 4 | Department of the Navy | $2,548,554 | |
| 5 | Department of Veterans Affairs | $2,436,976 | |
| 6 | Department of Transportation | $2,214,702 | |
| 7 | Department of Health and Human Services | $1,293,681 | |
| 8 | Department of State | $1,039,107 | |
| 9 | Department of Commerce | $825,725 | |
| 10 | National Aeronautics and Space Administration | $406,524 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | R604 Mailing and Distribution Services | $38,284,567 | |
| 2 | R613 Post Office Services | $3,653,416 | |
| 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/ |
$406,524 | |
| 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 | $15,251,694 | |
| 2 | District of Columbia | $7,157,294 | |
| 3 | Illinois | $3,501,363 | |
| 4 | Florida | $1,630,975 | |
| 5 | Alabama | $1,122,723 | |
| 6 | Georgia | $1,059,896 | |
| 7 | New York | $1,055,792 | |
| 8 | Texas | $738,127 | |
| 9 | South Carolina | $731,206 | |
| 10 | Arizona | $731,011 | |
| 11 | Arkansas | $678,541 | |
| 12 | North Dakota | $646,511 | |
| 13 | Virginia | $623,815 | |
| 14 | Mississippi | $607,497 | |
| 15 | Nebraska | $575,925 | |
| 16 | Nevada | $568,810 | |
| 17 | New Mexico | $559,697 | |
| 18 | Louisiana | $496,414 | |
| 19 | Delaware | $488,722 | |
| 20 | Ohio | $482,718 | |
| 21 | North Carolina | $480,051 | |
| 22 | Oklahoma | $415,818 | |
| 23 | New Hampshire | $341,282 | |
| 24 | Indiana | $290,145 | |
| 25 | Alaska | $273,825 | |
| 26 | Connecticut | $272,668 | |
| 27 | Massachusetts | $141,139 | |
| 28 | Tennessee | $135,198 | |
| 29 | Washington | $98,147 | |
| 30 | Missouri | $73,766 | |
| 31 | Montana | $69,969 | |
| 32 | Colorado | $62,369 | |
| 33 | South Dakota | $46,328 | |
| 34 | Idaho | $666 |
Show all 34
Shares are of everything obligated under NAICS 491 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 3,074 listed here. See the rest on GovTribe.
Codes under 491
| NAICS code |
|---|
| 4911 Postal Service |
Definition
The Postal Service subsector includes the activities of the National Post Office and its subcontractors operating under a universal service obligation to provide mail services, and using the infrastructure required to fulfill that obligation. These services include delivering letters and small parcels. These articles can be described as those that can be handled by one person without using special equipment. This allows the collection, pick-up, and delivery operations to be done with limited labor costs and minimal equipment.
Read the full definition
Sorting and transportation activities, where necessary, are generally mechanized. The restriction to small parcels distinguishes these establishments from those in the transportation industries. These establishments may also provide express delivery services using the infrastructure established for provision of basic mail services. The traditional activity of the National Postal Service is described in this subsector. Subcontractors include rural post offices on contract to the Postal Service.
Bulk transportation of mail on contract to the Postal Service is not included here, because it is usually done by transportation establishments that carry other customers' cargo as well. Establishments that provide courier and express delivery services without operating under a universal service obligation are classified in Subsector 492, Couriers and Messengers.
Quick answers
What is NAICS 491?
NAICS 491 is Postal Service, a subsector in NAICS 48-49, Transportation and Warehousing.
What codes are under NAICS 491?
NAICS 491 has one code under it with its own GovTribe page, 4911 Postal Service.
How much do federal agencies spend under NAICS 491?
Federal contracts under NAICS 491 obligated $54,183,249 in fiscal year 2025 and $209,408,242 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 491?
The contractors with the most obligated under NAICS 491 in fiscal years 2026 and 2027 are Servicesource Inc. ($14,265,678); Versability Resources, Inc. ($11,557,001); and IAP World Services, Inc. ($3,298,995).
Which agencies buy the most under NAICS 491?
The agencies that obligated the most under NAICS 491 in fiscal years 2026 and 2027 are Department of Homeland Security ($18,954,132), Air Force ($18,540,953) and Department of the Army ($4,254,142).
Which PSC codes are used with NAICS 491?
The PSC codes with the most obligated under NAICS 491 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 491 performed?
By place of performance, the states with the most contract obligations under NAICS 491 over the last 12 months are Maryland ($15,251,694), the District of Columbia ($7,157,294) and Illinois ($3,501,363).
What is the latest contract opportunity under NAICS 491?
The latest contract opportunity under NAICS 491 is Contract Delivery Service (CDS) HCR 996B3 PALMER, AK - H011, AK, solicitation from United States Postal Service, posted October 15, 2026.
On GovTribe
See everything under NAICS 491
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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