NAICS Subsector 488: Support Activities for Transportation
Subsector
Definition
Industries in the Support Activities for Transportation subsector provide services which support transportation. These services may be provided to transportation carrier establishments or to the general public. This subsector includes a wide array of establishments, including air traffic control services, marine cargo handling, and motor vehicle towing. The Support Activities for Transportation subsector includes services to transportation, separated by type of mode serviced.
Read the full definition
The Support Activities for Rail Transportation industry includes services to the rail industry (e.g., railroad switching and terminal establishments). Ship repair and maintenance services not done in a shipyard are included in the Other Support Activities for Water Transportation industry. An example would be floating drydock services in a harbor. Excluded from this subsector are establishments primarily engaged in providing factory conversion and overhaul of transportation equipment, which are classified in Subsector 336, Transportation Equipment Manufacturing.
Establishments primarily engaged in providing rental and leasing of transportation equipment without operator are classified in Subsector 532, Rental and Leasing Services. Also, establishments primarily engaged in providing travel arrangement and reservation services are classified in Industry Group 5615, Travel Arrangement and Reservation Services.
Government contracts for this service: PSC J015 Aircraft and Airframe Structural Components Maintenance and Repair
Code facts
- Part of
-
- 48-49
- Codes under it
- 6
- Contract awards
- 4,927 In the last 12 months
- Contract obligations
- $9,718,287,141 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 | $52,379,152 |
| FY2026 | $9,642,118,653 |
| FY2025 | $9,718,287,141 |
| FY2024 | $9,832,369,569 |
| FY2023 | $8,984,711,453 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Amentum Services, Inc. | $1,370,775,880 | |
| 2 | V2X Aerospace LLC | $1,183,502,398 | |
| 3 | M1 Support Services, L.P. | $789,615,033 | |
| 4 | General Atomics Aeronautical Systems, Inc. | $758,525,870 | |
| 5 | RTX Corporation | $551,693,703 | |
| 6 | Airbus US Space & Defense Inc. | $308,624,893 | |
| 7 | GDC Middle East Company | $282,219,956 | |
| 8 | Mantech Advanced Systems International, Inc. | $251,586,333 | |
| 9 | AAR Government Services, Inc. | $220,566,385 | |
| 10 | International Auto Logistics, LLC | $181,629,948 |
See the full FY2025 ranking of NAICS 488 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $2,562,262,964 | |
| 2 | Department of the Army | $2,387,451,010 | |
| 3 | Air Force | $2,260,330,369 | |
| 4 | Department of Homeland Security | $1,186,972,638 | |
| 5 | Department of Transportation | $430,588,010 | |
| 6 | Office of the Secretary of Defense | $235,528,470 | |
| 7 | Defense Logistics Agency | $196,036,912 | |
| 8 | US Special Operations Command | $119,440,197 | |
| 9 | National Aeronautics and Space Administration | $102,582,703 | |
| 10 | Department of State | $73,331,195 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | J015 Maintenance, Repair and Rebuilding of Equipment: Aircraft and Airframe Structural Components | $4,820,697,179 | |
| 2 | R425 Engineering and Technical Services | $807,052,575 | |
| 3 | J016 Maintenance, Repair and Rebuilding of Equipment: Aircraft Components and Accessories | $596,601,623 | |
| 4 | J028 Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components | $579,544,442 | |
| 5 | V119 Other Cargo and Freight Services | $345,919,884 | |
| 6 | R706 Logistics Support Services | $340,121,205 | |
| 7 | M1BA Operation of Air Traffic Control Towers | $296,181,495 | |
| 8 |
M2CA Ship Husbanding Services-Management/ |
$179,644,448 | |
| 9 | 3990 Miscellaneous Materials Handling Equipment | $167,840,730 | |
| 10 | H115 Quality Control Services: Aircraft and Airframe Structural Components | $166,871,220 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Virginia | $1,336,123,967 | |
| 2 | California | $1,057,397,909 | |
| 3 | Texas | $902,468,615 | |
| 4 | Maryland | $790,166,405 | |
| 5 | Alabama | $628,442,416 | |
| 6 | Connecticut | $578,550,275 | |
| 7 | Mississippi | $510,830,540 | |
| 8 | Oklahoma | $425,803,783 | |
| 9 | Florida | $381,921,719 | |
| 10 | District of Columbia | $254,932,297 | |
| 11 | Georgia | $245,119,588 | |
| 12 | Illinois | $177,585,125 | |
| 13 | Kentucky | $125,818,967 | |
| 14 | New York | $98,298,640 | |
| 15 | Nevada | $94,482,543 | |
| 16 | New Jersey | $78,001,096 | |
| 17 | Arizona | $76,657,723 | |
| 18 | Kansas | $74,847,199 | |
| 19 | Louisiana | $72,562,902 | |
| 20 | North Carolina | $61,828,769 | |
| 21 | New Mexico | $47,319,677 | |
| 22 | Indiana | $36,135,244 | |
| 23 | South Carolina | $24,293,151 | |
| 24 | Iowa | $20,342,262 | |
| 25 | Missouri | $19,812,261 | |
| 26 | Pennsylvania | $19,113,950 | |
| 27 | U.S. Virgin Islands | $18,265,281 | |
| 28 | Idaho | $17,088,485 | |
| 29 | Puerto Rico | $15,828,011 | |
| 30 | Washington | $15,520,899 | |
| 31 | Hawaii | $14,748,933 | |
| 32 | Wisconsin | $10,723,209 | |
| 33 | Guam | $9,658,215 | |
| 34 | Montana | $8,891,181 | |
| 35 | Colorado | $7,143,510 | |
| 36 | Maine | $6,055,416 | |
| 37 | Massachusetts | $5,500,089 | |
| 38 | Alaska | $5,332,787 | |
| 39 | Ohio | $3,736,262 | |
| 40 | Oregon | $3,710,120 | |
| 41 | Utah | $3,111,995 | |
| 42 | Delaware | $2,635,320 | |
| 43 | West Virginia | $2,440,886 | |
| 44 | Michigan | $2,155,861 | |
| 45 | Tennessee | $2,116,784 | |
| 46 | South Dakota | $954,561 | |
| 47 | Rhode Island | $865,873 | |
| 48 | Minnesota | $779,922 | |
| 49 | North Dakota | $260,082 | |
| 50 | Wyoming | $255,908 | |
| 51 | Arkansas | $206,529 | |
| 52 | New Hampshire | $175,954 | |
| 53 | Nebraska | $139,687 | |
| 54 | American Samoa | $129,060 | |
| 55 | Northern Mariana Islands | $11,450 |
Show all 55
Shares are of everything obligated under NAICS 488 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 29 more
Latest 39 of 26,535 listed here. See the rest on GovTribe.
Codes under 488
Quick answers
What is NAICS 488?
NAICS 488 is Support Activities for Transportation, a subsector in NAICS 48-49, Transportation and Warehousing.
What codes are under NAICS 488?
NAICS 488 has 6 codes under it with their own GovTribe pages, including 4881 Support Activities for Air Transportation, 4882 Support Activities for Rail Transportation and 4883 Support Activities for Water Transportation.
How much do federal agencies spend under NAICS 488?
Federal contracts under NAICS 488 obligated $9,718,287,141 in fiscal year 2025 and $38,229,865,968 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 488?
The contractors with the most obligated under NAICS 488 in fiscal years 2026 and 2027 are Amentum Services, Inc. ($1,370,775,880); V2X Aerospace LLC ($1,183,502,398); and M1 Support Services, L.P. ($789,615,033).
Which agencies buy the most under NAICS 488?
The agencies that obligated the most under NAICS 488 in fiscal years 2026 and 2027 are Department of the Navy ($2,562,262,964), Department of the Army ($2,387,451,010) and Air Force ($2,260,330,369).
Which PSC codes are used with NAICS 488?
The PSC codes with the most obligated under NAICS 488 in fiscal years 2026 and 2027 are J015 Maintenance, Repair and Rebuilding of Equipment: Aircraft and Airframe Structural Components; R425 Engineering and Technical Services; and J016 Maintenance, Repair and Rebuilding of Equipment: Aircraft Components and Accessories.
Where is the work under NAICS 488 performed?
By place of performance, the states with the most contract obligations under NAICS 488 over the last 12 months are Virginia ($1,336,123,967), California ($1,057,397,909) and Texas ($902,468,615).
What is the latest contract opportunity under NAICS 488?
The latest contract opportunity under NAICS 488 is 136 Airlift Wing C-130J Aircraft Wash, pre-solicitation from Army National Guard, posted November 13, 2026.
On GovTribe
See everything under NAICS 488
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