All federal markets
DOI
Department of the Interior contracting by NAICS
The Department of the Interior obligated $5.4B in net prime contract dollars in the 12 months ending Oct 5, 2026. The 80 NAICS markets below cover $5.1B of it.
Largest increases
NAICS markets with the largest dollar growth versus the preceding 12 months.
| NAICS market | Prior 12 mo | Latest 12 mo | Change |
|---|---|---|---|
| 237110 · Water and Sewer Line and Related Structures Construction | $447.6M | $752.0M | Up $304.4M (68.0%) |
| 237310 · Highway, Street, and Bridge Construction | $86.3M | $191.3M | Up $105.0M (121.7%) |
| 237130 · Power and Communication Line and Related Structures Construction | $18.2M | $75.4M | Up $57.2M (314.4%) |
| 336411 · Aircraft Manufacturing | $2.9M | $57.4M | Up $54.4M (1848.2%) |
| 325998 · All Other Miscellaneous Chemical Product and Preparation Manufacturing | $67.2M | $116.9M | Up $49.7M (74.0%) |
Largest declines
NAICS markets with the largest dollar decline versus the preceding 12 months.
| NAICS market | Prior 12 mo | Latest 12 mo | Change |
|---|---|---|---|
| 237990 · Other Heavy and Civil Engineering Construction | $820.6M | $494.3M | Down $326.3M (39.8%) |
| 236220 · Commercial and Institutional Building Construction | $719.8M | $573.4M | Down $146.4M (20.3%) |
| 115310 · Support Activities for Forestry | $329.7M | $287.4M | Down $42.3M (12.8%) |
| 541310 · Architectural Services | $47.7M | $20.4M | Down $27.3M (57.2%) |
| 541330 · Engineering Services | $188.7M | $168.5M | Down $20.2M (10.7%) |
All Interior NAICS markets
Ranked by net obligations in the latest 12 months.
237110 · Water and Sewer Line and Related Structures Construction
$752.0M236220 · Commercial and Institutional Building Construction
$573.4M237990 · Other Heavy and Civil Engineering Construction
$494.3M541519 · Other Computer Related Services
$349.2M115310 · Support Activities for Forestry
$287.4M237310 · Highway, Street, and Bridge Construction
$191.3M541330 · Engineering Services
$168.5M541360 · Geophysical Surveying and Mapping Services
$131.7M481211 · Nonscheduled Chartered Passenger Air Transportation
$126.3M541511 · Custom Computer Programming Services
$119.4M325998 · All Other Miscellaneous Chemical Product and Preparation Manufacturing
$116.9M541512 · Computer Systems Design Services
$89.7M115210 · Support Activities for Animal Production
$84.9M541513 · Computer Facilities Management Services
$83.9M518210 · Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
$83.7M541620 · Environmental Consulting Services
$77.7M237130 · Power and Communication Line and Related Structures Construction
$75.4M541611 · Administrative Management and General Management Consulting Services
$69.2M517110 · Wired Telecommunications Carriers
$68.3M213112 · Support Activities for Oil and Gas Operations
$67.2M541990 · All Other Professional, Scientific, and Technical Services
$62.9M561210 · Facilities Support Services
$59.3M336411 · Aircraft Manufacturing
$57.4M511210 · Software Publishers
$55.8M481212 · Nonscheduled Chartered Freight Air Transportation
$40.4M561720 · Janitorial Services
$38.7M561612 · Security Guards and Patrol Services
$38.5M561730 · Landscaping Services
$33.2M334111 · Electronic Computer Manufacturing
$31.6M238220 · Plumbing, Heating, and Air-conditioning Contractors
$29.9M336992 · Military Armored Vehicle, Tank, and Tank Component Manufacturing
$29.7M333120 · Construction Machinery Manufacturing
$27.7M513210 · Software Publishers
$26.0M113210 · Forest Nurseries and Gathering of Forest Products
$23.8M541310 · Architectural Services
$20.4M334513 · Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
$19.6M336120 · Heavy Duty Truck Manufacturing
$18.8M334220 · Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
$18.7M541690 · Other Scientific and Technical Consulting Services
$18.1M238210 · Electrical Contractors and Other Wiring Installation Contractors
$18.0M221122 · Electric Power Distribution
$18.0M811310 · Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
$17.2M238990 · All Other Specialty Trade Contractors
$16.8M562111 · Solid Waste Collection
$15.5M562910 · Remediation Services
$14.8M611710 · Educational Support Services
$12.6M541370 · Surveying and Mapping (except Geophysical) Services
$12.6M238910 · Site Preparation Contractors
$12.0M311999 · All Other Miscellaneous Food Manufacturing
$11.9M541380 · Testing Laboratories and Services
$11.8M238160 · Roofing Contractors
$11.7M517312 · Wireless Telecommunications Carriers (except Satellite)
$11.3M488190 · Other Support Activities for Air Transportation
$11.3M561990 · All Other Support Services
$11.3M315210 · Cut and Sew Apparel Contractors
$11.1M221310 · Water Supply and Irrigation Systems
$9.9M334516 · Analytical Laboratory Instrument Manufacturing
$9.2M922120 · Police Protection
$9.2M212319 · Other Crushed and Broken Stone Mining and Quarrying
$8.7M562991 · Septic Tank and Related Services
$8.6M541211 · Offices of Certified Public Accountants
$8.6M541715 · Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
$8.1M238320 · Painting and Wall Covering Contractors
$8.0M336112 · Light Truck and Utility Vehicle Manufacturing
$8.0M561621 · Security Systems Services (except Locksmiths)
$7.3M334511 · Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
$7.2M541940 · Veterinary Services
$7.2M336612 · Boat Building
$6.8M332999 · All Other Miscellaneous Fabricated Metal Product Manufacturing
$6.6M324110 · Petroleum Refineries
$6.5M332992 · Small Arms Ammunition Manufacturing
$6.4M334310 · Audio and Video Equipment Manufacturing
$6.3M115112 · Soil Preparation, Planting, and Cultivating
$6.2M212321 · Construction Sand and Gravel Mining
$5.8M333924 · Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
$5.7M541199 · All Other Legal Services
$5.7M519290 · Web Search Portals and All Other Information Services
$5.5M337212 · Custom Architectural Woodwork and Millwork Manufacturing
$5.4M621498 · All Other Outpatient Care Centers
$5.4M621340 · Offices of Physical, Occupational and Speech Therapists, and Audiologists
$5.3MPrime contracts (award types A–D) funded by the Department of the Interior, from USAspending.gov. A market is listed when it had at least $5M in the latest 12 months, $1M in the preceding 12 months, and 10 awards with activity in each period.
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