NAICS Industry Group 4831: Deep Sea, Coastal, and Great Lakes Water Transportation

Industry group

Government contracts for this service: PSC V124 Marine Charter for Things and PSC M1PZ Operation of Other Non-Building Facilities

Code facts

Codes under it
1
Contract awards
1,235 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 -$4,706,234
FY2026 $3,265,522,056
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. $577,987,562
2 Patriot Contract Services, LLC $354,007,858
3 Tote Services, LLC $266,397,562
4 Ocean Ships, Inc. $215,849,585
5 American Roll-On Roll-Off Carrier, LLC $133,182,366
6 Schuyler Line Navigation Company LLC $129,447,074
7 Transoceanic Cable Ship Company LLC $114,349,408
8 U.s. Marine Management, LLC $111,378,277
9 Hornbeck Offshore Operators LLC $104,398,045
10 Waterman Transport Inc. $85,222,629

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 Department of Defense $2,646,895,778
2 Air Force Department of Defense $483,963,010
3 Department of Transportation $57,575,421
4 Missile Defense Agency Department of Defense $18,816,322
5 Department of Commerce $17,487,945
6 Department of Homeland Security $15,691,357
7 Department of the Army Department of Defense $8,746,250
8 Environmental Protection Agency $5,350,000
9 Department of the Interior $3,325,013
10 Department of Agriculture $2,931,558
Rank PSC code Obligated, FY2026–FY2027 Share
1 V124 Marine Charter for Things $1,784,990,386
2 M1PZ Operation of Other Non-Building Facilities $923,952,400
3 V115 Vessel Freight $495,263,766
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/Observation Services $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 $660,617,107
2 California $460,746,869
3 Virginia $365,957,894
4 Texas $316,698,677
5 Louisiana $179,886,367
6 Maryland $107,139,688
7 New York $79,498,159
8 Oregon $75,753,373
9 Hawaii $68,831,974
10 Pennsylvania $67,446,130
11 Alabama $67,275,955
12 Washington $65,014,527
13 District of Columbia $39,615,473
14 North Carolina $38,663,587
15 Indiana $31,997,257
16 South Carolina $31,970,259
17 Mississippi $17,020,090
18 Colorado $13,126,771
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 $1,511,205
24 Massachusetts $1,384,204
25 Illinois $1,330,285
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

Notice Posted Due
Tanker voyage charter Pre-Solicitation · Military Sealift Command (Navy) · N32205-SS-N35C-27-021
Tanker Voyage Charter Pre-Solicitation · Military Sealift Command (Navy) · N32205-SS-N35C-27-019
30-day dry cargo time charter Pre-Solicitation · Military Sealift Command (Navy)
173-day dry cargo time charter Pre-Solicitation · Military Sealift Command (Navy)
Dry cargo time or voyage charter Pre-Solicitation · Military Sealift Command (Navy)
Tanker voyage charter Solicitation · Military Sealift Command (Navy) · N3220527R6019
Tanker voyage charter Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6019
90-Day Tanker Time Charter Award Notice · Military Sealift Command (Navy) · N3220527R6013 —
Ancillary Surface Craft (ASC) Shipping Pre-Solicitation · Military Sealift Command (Navy)
Tanker Voyage Charter Award Notice · Military Sealift Command (Navy) · N3220527R6011 —
Request for Information (RFI) – Market Research for Ocean Transportation of Hazardous Waste (Guam to CONUS) Pre-Solicitation · Defense Logistics Agency · RFI_22D0016_483113
Request for Information (RFI) – Market Research for Ocean Transportation of Hazardous Waste (Guam to CONUS) Pre-Solicitation · Defense Logistics Agency · RFI_22D0016_483111
Tugcon; open-ocean tow Solicitation · Military Sealift Command (Navy) · N3220527R6016
Tugcon; open-ocean tow Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6016
East Coast Tanker Time Charter (Extended Term) Pre-Solicitation · Military Sealift Command (Navy)
90-Day Tanker Time Charter Award Notice · Military Sealift Command (Navy) · N3220527R6008 —
Extended term time charter / consolidated cargo operations (CONSOL) capable combination container/breakbulk vessel Pre-Solicitation · Military Sealift Command (Navy)
Dry Cargo Voyage Charter Pre-Solicitation · Military Sealift Command (Navy) · N32205-SS-N321-27-013
Dry cargo voyage charter Pre-Solicitation · Military Sealift Command (Navy) · N32205-SS-N321-27-012
Hawaii National Marine Sanctuary Vessel Charter Services Pre-Solicitation · National Oceanic and Atmospheric Administration
Tanker (LNG) Voyage Charter Pre-Solicitation · Military Sealift Command (Navy)
120-day Tanker Time Charter with Two 60-day Options Pre-Solicitation · Military Sealift Command (Navy)
75-day dry cargo time charter (with three 75-day option periods) Pre-Solicitation · Military Sealift Command (Navy)
MED tanker voyage charter Pre-Solicitation · Military Sealift Command (Navy)
90-Day Tanker Time Charter Solicitation · Military Sealift Command (Navy) · N3220527R6014
90-Day Tanker Time Charter Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6014
360-day dry cargo time charter Solicitation · Military Sealift Command (Navy) · N3220527R6015
360-day dry cargo time charter Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6015
US east coast/gulf coast jones act tanker (extended term charter) Pre-Solicitation · Military Sealift Command (Navy)
90-Day Tanker Time Charter Solicitation · Military Sealift Command (Navy) · N3220527R6013
90-Day Tanker Time Charter Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6013
80-day dry cargo time charter Pre-Solicitation · Military Sealift Command (Navy)
Vessel Charter - Buoy Recovery and Deployment - Sa Award Notice · National Oceanic and Atmospheric Administration —
Passenger Vessel Pre-Solicitation · Military Sealift Command (Navy)
Tanker Voyage Charter Solicitation · Military Sealift Command (Navy) · N3220527R6011
Tanker Voyage Charter Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6011
90-Day Tanker Time Charter Solicitation · Military Sealift Command (Navy) · N3220527R6008
90-Day Tanker Time Charter Pre-Solicitation · Military Sealift Command (Navy) · N3220527R6008
Vessel Charter - Buoy Recovery and Deployment Solicitation · National Oceanic and Atmospheric Administration
60-Day U. S. Jones Act Tanker Time Charter Solicitation · Military Sealift Command (Navy)
50-Day U. S. Jones Act Tanker Time Charter Pre-Solicitation · Military Sealift Command (Navy)
Ie Shima Barge Transportation Solicitation · Marine Corps (Navy)
59-day dry cargo time charter Pre-Solicitation · Military Sealift Command (Navy)
Dry cargo voyage charter Pre-Solicitation · Military Sealift Command (Navy) · N32205-SS-N103-26-177
Tugcon, open-ocean tow Pre-Solicitation · Military Sealift Command (Navy)
365-day Dry Cargo Time Charter Award Notice · Military Sealift Command (Navy) —
ESD N3220526R0018 solicitation Special Notice · Military Sealift Command (Navy) —
TUGCON; Jones Act Open-Ocean Tow Solicitation · Military Sealift Command (Navy)
Vessel Atlantic Ops Physical Inspections Draft RFP Pre-Solicitation · Bureau of Safety and Environmental Enforcement
90-day tanker time charter Award Notice · Military Sealift Command (Navy) · N3220526P5236 —
Show 40 more

Latest 50 of 6,348 listed here. See the rest on GovTribe.

Codes under 4831

NAICS code
48311 Deep Sea, Coastal, and Great Lakes Water Transportation

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 $13,384,998,794 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. ($577,987,562); Patriot Contract Services, LLC ($354,007,858); and Tote Services, LLC ($266,397,562).

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 ($2,646,895,778), Air Force ($483,963,010) and Department of Transportation ($57,575,421).

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 ($660,617,107), California ($460,746,869) and Virginia ($365,957,894).

What is the latest contract opportunity under NAICS 4831?

The latest contract opportunity under NAICS 4831 is Tanker voyage charter, pre-solicitation from Military Sealift Command (Navy), posted November 12, 2026.

On GovTribe

See everything under NAICS 4831

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