Top NAICS Codes for Department of the Interior FY2026

Industries ranked by federal contract obligations awarded by Department of the Interior during fiscal year 2026.

Quick answer

NAICS 237130, POWER AND COMMUNICATION LINE AND RELATED STRUCTURES CONSTRUCTION, leads Department of the Interior in FY2026 with $68,735,483 in ingested obligations.

Market Snapshot

Ranked contractors57
Top obligations$68,735,483
RankNAICSNAICS industryObligationsAwards
1237130POWER AND COMMUNICATION LINE AND RELATED STRUCTURES CONSTRUCTION$68,735,4831
2541512COMPUTER SYSTEMS DESIGN SERVICES$38,340,6602
3238390OTHER BUILDING FINISHING CONTRACTORS$6,886,5201
4213112SUPPORT ACTIVITIES FOR OIL AND GAS OPERATIONS$6,140,8991
5541519OTHER COMPUTER RELATED SERVICES$1,779,6934
6115310SUPPORT ACTIVITIES FOR FORESTRY$1,470,3313
7541620ENVIRONMENTAL CONSULTING SERVICES$1,290,5001
8481211NONSCHEDULED CHARTERED PASSENGER AIR TRANSPORTATION$1,253,1244
9561720JANITORIAL SERVICES$921,7352
10483111DEEP SEA FREIGHT TRANSPORTATION$457,6731
11333120CONSTRUCTION MACHINERY MANUFACTURING$440,9551
12541850OUTDOOR ADVERTISING$414,5501
13238220PLUMBING, HEATING, AND AIR-CONDITIONING CONTRACTORS$334,0531
14112111BEEF CATTLE RANCHING AND FARMING$301,0002
15334513INSTRUMENTS AND RELATED PRODUCTS MANUFACTURING FOR MEASURING, DISPLAYING, AND CONTROLLING INDUSTRIAL PROCESS VARIABLES$220,7702
16541990ALL OTHER PROFESSIONAL, SCIENTIFIC, AND TECHNICAL SERVICES$215,4811
17237110WATER AND SEWER LINE AND RELATED STRUCTURES CONSTRUCTION$210,0881
18541511CUSTOM COMPUTER PROGRAMMING SERVICES$191,5141
19221122ELECTRIC POWER DISTRIBUTION$161,6132
20562991SEPTIC TANK AND RELATED SERVICES$152,1272
21541330ENGINEERING SERVICES$89,1331
22333112LAWN AND GARDEN TRACTOR AND HOME LAWN AND GARDEN EQUIPMENT MANUFACTURING$86,0611
23333111FARM MACHINERY AND EQUIPMENT MANUFACTURING$84,2481
24311423DRIED AND DEHYDRATED FOOD MANUFACTURING$69,8361
25336411AIRCRAFT MANUFACTURING$61,7702
26513210SOFTWARE PUBLISHERS$61,6573
27561730LANDSCAPING SERVICES$59,8801
28336112LIGHT TRUCK AND UTILITY VEHICLE MANUFACTURING$41,8551
29334111ELECTRONIC COMPUTER MANUFACTURING$35,1221
30519190ALL OTHER INFORMATION SERVICES$33,2601
31238330FLOORING CONTRACTORS$33,0321
32236220COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION$32,0001
33238290OTHER BUILDING EQUIPMENT CONTRACTORS$31,8861
34334519OTHER MEASURING AND CONTROLLING DEVICE MANUFACTURING$25,7201
35561320TEMPORARY HELP SERVICES$25,0001
36541380TESTING LABORATORIES AND SERVICES$22,6801
37621340OFFICES OF PHYSICAL, OCCUPATIONAL AND SPEECH THERAPISTS, AND AUDIOLOGISTS$19,8001
38324122ASPHALT SHINGLE AND COATING MATERIALS MANUFACTURING$18,7471
39811210ELECTRONIC AND PRECISION EQUIPMENT REPAIR AND MAINTENANCE$18,2482
40335312MOTOR AND GENERATOR MANUFACTURING$15,9751
41541690OTHER SCIENTIFIC AND TECHNICAL CONSULTING SERVICES$15,7581
42334516ANALYTICAL LABORATORY INSTRUMENT MANUFACTURING$13,9201
43332312FABRICATED STRUCTURAL METAL MANUFACTURING$12,0101
44238160ROOFING CONTRACTORS$11,9721
45339999ALL OTHER MISCELLANEOUS MANUFACTURING$9,9991
46531320OFFICES OF REAL ESTATE APPRAISERS$9,5001
47561499ALL OTHER BUSINESS SUPPORT SERVICES$9,3081
48811310COMMERCIAL AND INDUSTRIAL MACHINERY AND EQUIPMENT (EXCEPT AUTOMOTIVE AND ELECTRONIC) REPAIR AND MAINTENANCE$7,7751
49562910REMEDIATION SERVICES$6,1191
50484210USED HOUSEHOLD AND OFFICE GOODS MOVING$5,8371
51561421TELEPHONE ANSWERING SERVICES$4,5001
52336212TRUCK TRAILER MANUFACTURING$3,9901
53811121AUTOMOTIVE BODY, PAINT, AND INTERIOR REPAIR AND MAINTENANCE$3,3511
54811490OTHER PERSONAL AND HOUSEHOLD GOODS REPAIR AND MAINTENANCE$3,2471
55811111GENERAL AUTOMOTIVE REPAIR$3,0511
56332992SMALL ARMS AMMUNITION MANUFACTURING$1,7321
57221310WATER SUPPLY AND IRRIGATION SYSTEMS$4001

Source: USAspending.gov. Last updated from ingested federal spending data: May 7, 2026.