Agencies
Department of Transportation capture intelligence by NAICS
See which NAICS markets at Department of Transportation reported the largest obligation gains and declines. Compare prime contractors, buying methods, award activity, and lifecycle signals in each market.
52 published NAICS profiles
Latest 12 months vs. preceding 12 months
Where reported obligations moved
Latest period –
The following are the largest material movements among 51 comparable NAICS profiles on this page.
Largest increase: NAICS 334511 — Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing reported an increase of $974.1M from $107.7M to $1.1B.
Largest decline: NAICS 336611 — Ship Building and Repairing reported a decline of $41.4M from $108.6M to $67.3M.
Largest reported increases
Ranked by absolute obligation movement| NAICS | Preceding 12 months | Latest 12 months | Change |
|---|---|---|---|
1NAICS 334511Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing166 preceding
· 145 latest
positive awards
| $107.7M | $1.1B | Up $974.1MUp 904.1% |
2NAICS 541330Engineering Services900 preceding
· 964 latest
positive awards
| $1.3B | $1.8B | Up $449.7MUp 33.4% |
3NAICS 541512Computer Systems Design Services573 preceding
· 554 latest
positive awards
| $333.5M | $729.8M | Up $396.3MUp 118.8% |
4NAICS 236220Commercial and Institutional Building Construction294 preceding
· 255 latest
positive awards
| $309.9M | $543.1M | Up $233.2MUp 75.2% |
5NAICS 237310Highway, Street, and Bridge Construction180 preceding
· 194 latest
positive awards
| $633.7M | $849.6M | Up $215.9MUp 34.1% |
Largest reported declines
Ranked by absolute obligation movement| NAICS | Preceding 12 months | Latest 12 months | Change |
|---|---|---|---|
1NAICS 336611Ship Building and Repairing66 preceding
· 39 latest
positive awards
| $108.6M | $67.3M | Down $41.4MDown 38.1% |
2NAICS 238210Electrical Contractors and Other Wiring Installation Contractors433 preceding
· 367 latest
positive awards
| $113M | $76.5M | Down $36.4MDown 32.3% |
3NAICS 541620Environmental Consulting Services72 preceding
· 45 latest
positive awards
| $34.5M | $14.7M | Down $19.7MDown 57.3% |
4NAICS 541611Administrative Management and General Management Consulting Services631 preceding
· 477 latest
positive awards
| $367.8M | $352.1M | Down $15.6MDown 4.2% |
5NAICS 811219Other Electronic and Precision Equipment Repair and Maintenance26 preceding
· 11 latest
positive awards
| $22.3M | $12.3M | Down $10MDown 44.9% |
Scope and comparison rules
The latest period runs from Sep 11, 2025 through Sep 10, 2026. It is compared with Sep 11, 2024 through Sep 10, 2025.
Rankings cover this page’s 52 published profiles. A profile must contain at least 10 positive-obligation awards in each period, at least $1M in preceding-period net obligations, nonnegative latest-period net obligations, and at least $1M of absolute movement to appear.
Net obligations include deobligations and corrections. A historical increase or decline does not establish market attractiveness, requirement demand, future buying intent, or a forecast. Green and red indicate direction only, not favorability.
TRANSPORTATION directory
Department of Transportation spending by NAICS
Choose a NAICS market to inspect its prime contractors, buying methods, award activity, and lifecycle signals.
- 342 prime contractorsNAICS 236220
Commercial and Institutional Building Construction
$1.5B Reported obligations - 121 prime contractorsNAICS 237130
Power and Communication Line and Related Structures Construction
$296.8M Reported obligations - 347 prime contractorsNAICS 237310
Highway, Street, and Bridge Construction
$4.3B Reported obligations - 71 prime contractorsNAICS 238160
Roofing Contractors
$46.3M Reported obligations - 158 prime contractorsNAICS 238210
Electrical Contractors and Other Wiring Installation Contractors
$579.2M Reported obligations - 208 prime contractorsNAICS 238220
Plumbing, Heating, and Air-Conditioning Contractors
$165.5M Reported obligations - 70 prime contractorsNAICS 238290
Other Building Equipment Contractors
$26.3M Reported obligations - 123 prime contractorsNAICS 238990
All Other Specialty Trade Contractors
$55.5M Reported obligations - 129 prime contractorsNAICS 334111
Electronic Computer Manufacturing
$761.7M Reported obligations - 121 prime contractorsNAICS 334220
Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
$512.9M Reported obligations - 90 prime contractorsNAICS 334290
Other Communications Equipment Manufacturing
$72.8M Reported obligations - 35 prime contractorsNAICS 334310
Audio and Video Equipment Manufacturing
$26.7M Reported obligations - 173 prime contractorsNAICS 334419
Other Electronic Component Manufacturing
$90.1M Reported obligations - 134 prime contractorsNAICS 334511
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
$1.5B Reported obligations - 63 prime contractorsNAICS 334515
Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
$40.2M Reported obligations - 64 prime contractorsNAICS 334519
Other Measuring and Controlling Device Manufacturing
$113.3M Reported obligations - 75 prime contractorsNAICS 335999
All Other Miscellaneous Electrical Equipment and Component Manufacturing
$135.1M Reported obligations - 46 prime contractorsNAICS 336413
Other Aircraft Parts and Auxiliary Equipment Manufacturing
$17.4M Reported obligations - 50 prime contractorsNAICS 336611
Ship Building and Repairing
$1.3B Reported obligations - 41 prime contractorsNAICS 337214
Office Furniture (except Wood) Manufacturing
$106.9M Reported obligations - 51 prime contractorsNAICS 423610
Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers
$30.9M Reported obligations - 67 prime contractorsNAICS 423690
Other Electronic Parts and Equipment Merchant Wholesalers
$12.6M Reported obligations - 45 prime contractorsNAICS 488190
Other Support Activities for Air Transportation
$125M Reported obligations - 151 prime contractorsNAICS 511210
Software Publishers
$113.2M Reported obligations - 153 prime contractorsNAICS 513210
Software Publishers
$308.3M Reported obligations - 75 prime contractorsNAICS 518210
Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
$1.4B Reported obligations - 27 prime contractorsNAICS 541211
Offices of Certified Public Accountants
$21.3M Reported obligations - 46 prime contractorsNAICS 541310
Architectural Services
$71.6M Reported obligations - 462 prime contractorsNAICS 541330
Engineering Services
$7.1B Reported obligations - 94 prime contractorsNAICS 541380
Testing Laboratories and Services
$247.2M Reported obligations - 210 prime contractorsNAICS 541511
Custom Computer Programming Services
$1.1B Reported obligations - 156 prime contractorsNAICS 541512
Computer Systems Design Services
$2.1B Reported obligations - 339 prime contractorsNAICS 541519
Other Computer Related Services
$2.1B Reported obligations - 531 prime contractorsNAICS 541611
Administrative Management and General Management Consulting Services
$1.8B Reported obligations - 49 prime contractorsNAICS 541612
Human Resources Consulting Services
$31.4M Reported obligations - 118 prime contractorsNAICS 541620
Environmental Consulting Services
$94.1M Reported obligations - 97 prime contractorsNAICS 541690
Other Scientific and Technical Consulting Services
$105.2M Reported obligations - 298 prime contractorsNAICS 541715
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
$496.4M Reported obligations - 40 prime contractorsNAICS 541720
Research and Development in the Social Sciences and Humanities
$64.4M Reported obligations - 200 prime contractorsNAICS 541990
All Other Professional, Scientific, and Technical Services
$1.6B Reported obligations - 40 prime contractorsNAICS 561110
Office Administrative Services
$88.5M Reported obligations - 77 prime contractorsNAICS 561210
Facilities Support Services
$363.8M Reported obligations - 60 prime contractorsNAICS 561621
Security Systems Services (except Locksmiths)
$181.7M Reported obligations - 212 prime contractorsNAICS 561720
Janitorial Services
$280.4M Reported obligations - 150 prime contractorsNAICS 561730
Landscaping Services
$28.6M Reported obligations - 37 prime contractorsNAICS 561990
All Other Support Services
$26.1M Reported obligations - 116 prime contractorsNAICS 562910
Remediation Services
$193.2M Reported obligations - 211 prime contractorsNAICS 611430
Professional and Management Development Training
$217.1M Reported obligations - 61 prime contractorsNAICS 611512
Flight Training
$139.9M Reported obligations - 40 prime contractorsNAICS 811210
Electronic and Precision Equipment Repair and Maintenance
$41.3M Reported obligations - 36 prime contractorsNAICS 811219
Other Electronic and Precision Equipment Repair and Maintenance
$161.7M Reported obligations - 35 prime contractorsNAICS 813920
Professional Organizations
$25.1M Reported obligations
This directory lists available market profiles, not every NAICS in which the agency has reported obligations. Review the methodology on each market page for coverage and interpretation details.