NAICS 4831: Deep Sea, Coastal, and Great Lakes Water Transportation
Industry group
Code facts
- Part of
-
-
48-49
- 483
-
48-49
- Codes under it
- 1
- Contract awards
- 1,254 In the last 12 months
- Contract obligations
- $3,348,373,858 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 | -$2,002,587 |
| FY2026 | $3,014,914,312 |
| FY2025 | $3,348,373,858 |
| FY2024 | $3,419,306,975 |
| FY2023 | $3,356,502,139 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Crowley Government Services, Inc. | $552,249,824 | |
| 2 | Patriot Contract Services, LLC | $338,948,954 | |
| 3 | Tote Services, LLC | $264,610,611 | |
| 4 | Ocean Ships, Inc. | $187,134,781 | |
| 5 | American Roll-On Roll-Off Carrier, LLC | $126,601,457 | |
| 6 | Schuyler Line Navigation Company LLC | $125,569,486 | |
| 7 | Transoceanic Cable Ship Company LLC | $114,349,408 | |
| 8 | U.s. Marine Management, LLC | $111,378,277 | |
| 9 | Hornbeck Offshore Operators LLC | $99,041,439 | |
| 10 | Keystone Shipping Services, Inc. | $81,491,666 |
See the full FY2025 ranking of NAICS 4831 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $2,479,191,406 | |
| 2 | Air Force | $402,704,003 | |
| 3 | Department of Transportation | $57,599,607 | |
| 4 | Missile Defense Agency | $18,816,322 | |
| 5 | Department of Commerce | $17,487,945 | |
| 6 | Department of Homeland Security | $16,726,607 | |
| 7 | Department of the Army | $8,746,250 | |
| 8 | Environmental Protection Agency | $5,350,000 | |
| 9 | Department of the Interior | $3,325,013 | |
| 10 | Department of Agriculture | $2,931,406 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | V124 Marine Charter for Things | $1,617,160,947 | |
| 2 | M1PZ Operation of Other Non-Building Facilities | $924,101,652 | |
| 3 | V115 Vessel Freight | $415,039,856 | |
| 4 | L019 Technical Representation Services: Ships, Small Craft, Pontoons, and Floating Docks | $32,821,640 | |
| 5 | 1910 Transport Vessels, Passenger and Troop | $9,966,420 | |
| 6 | V214 Marine Passenger Service | $5,524,285 | |
| 7 |
R427 Weather Reporting/ |
$3,281,250 | |
| 8 | V119 Other Cargo and Freight Services | $2,063,272 | |
| 9 | V224 Passenger Marine Charter Service | $1,399,845 | |
| 10 | V125 Vessel Towing Service | $923,212 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Florida | $626,837,670 | |
| 2 | California | $441,963,360 | |
| 3 | Virginia | $368,355,795 | |
| 4 | Texas | $284,971,777 | |
| 5 | Louisiana | $179,942,996 | |
| 6 | Maryland | $107,650,477 | |
| 7 | Oregon | $76,115,429 | |
| 8 | New York | $74,438,526 | |
| 9 | Alabama | $69,110,955 | |
| 10 | Washington | $62,359,563 | |
| 11 | Hawaii | $48,437,289 | |
| 12 | District of Columbia | $40,674,908 | |
| 13 | North Carolina | $39,009,651 | |
| 14 | South Carolina | $32,133,341 | |
| 15 | Indiana | $31,997,257 | |
| 16 | Pennsylvania | $25,921,247 | |
| 17 | Mississippi | $17,020,090 | |
| 18 | Colorado | $12,583,705 | |
| 19 | Wisconsin | $5,634,267 | |
| 20 | Alaska | $4,490,726 | |
| 21 | Northern Mariana Islands | $3,000,000 | |
| 22 | Michigan | $2,170,695 | |
| 23 | Puerto Rico | $1,511,296 | |
| 24 | Massachusetts | $1,365,866 | |
| 25 | Illinois | $504,000 | |
| 26 | Georgia | $306,697 | |
| 27 | U.S. Virgin Islands | $223,425 | |
| 28 | Guam | $112,009 | |
| 29 | Ohio | $10,560 | |
| 30 | Connecticut | $10,000 |
Show all 30
Shares are of everything obligated under NAICS 4831 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 38 more
Latest 48 of 6,325 listed here. See the rest on GovTribe.
Codes under 4831
Quick answers
What is NAICS 4831?
NAICS 4831 is Deep Sea, Coastal, and Great Lakes Water Transportation, an industry group in NAICS 48-49, Transportation and Warehousing.
What codes are under NAICS 4831?
NAICS 4831 has one code under it with its own GovTribe page, 48311 Deep Sea, Coastal, and Great Lakes Water Transportation.
How much do federal agencies spend under NAICS 4831?
Federal contracts under NAICS 4831 obligated $3,348,373,858 in fiscal year 2025 and $13,137,094,697 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 4831?
The contractors with the most obligated under NAICS 4831 in fiscal years 2026 and 2027 are Crowley Government Services, Inc. ($552,249,824); Patriot Contract Services, LLC ($338,948,954); and Tote Services, LLC ($264,610,611).
Which agencies buy the most under NAICS 4831?
The agencies that obligated the most under NAICS 4831 in fiscal years 2026 and 2027 are Department of the Navy ($2,479,191,406), Air Force ($402,704,003) and Department of Transportation ($57,599,607).
Which PSC codes are used with NAICS 4831?
The PSC codes with the most obligated under NAICS 4831 in fiscal years 2026 and 2027 are V124 Marine Charter for Things, M1PZ Operation of Other Non-Building Facilities and V115 Vessel Freight.
Where is the work under NAICS 4831 performed?
By place of performance, the states with the most contract obligations under NAICS 4831 over the last 12 months are Florida ($626,837,670), California ($441,963,360) and Virginia ($368,355,795).
What is the latest contract opportunity under NAICS 4831?
The latest contract opportunity under NAICS 4831 is MED tanker voyage charter, pre-solicitation from Military Sealift Command (Navy), posted October 22, 2026.
On GovTribe
See everything under NAICS 4831
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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