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 $973M from $109M to $1.1B.
Largest decline: NAICS 336611 — Ship Building and Repairing reported a decline of $42.9M from $110M to $67M.
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 Manufacturing170 preceding
· 147 latest
positive awards
| $109M | $1.1B | Up $973MUp 892.9% |
2NAICS 541330Engineering Services907 preceding
· 974 latest
positive awards
| $1.3B | $1.7B | Up $410.5MUp 30.7% |
3NAICS 541512Computer Systems Design Services578 preceding
· 562 latest
positive awards
| $335.9M | $722.7M | Up $386.8MUp 115.1% |
4NAICS 236220Commercial and Institutional Building Construction287 preceding
· 262 latest
positive awards
| $311.3M | $543.3M | Up $232MUp 74.6% |
5NAICS 541990All Other Professional, Scientific, and Technical Services148 preceding
· 122 latest
positive awards
| $292.2M | $512.2M | Up $220MUp 75.3% |
Largest reported declines
Ranked by absolute obligation movement| NAICS | Preceding 12 months | Latest 12 months | Change |
|---|---|---|---|
1NAICS 336611Ship Building and Repairing68 preceding
· 38 latest
positive awards
| $110M | $67M | Down $42.9MDown 39% |
2NAICS 238210Electrical Contractors and Other Wiring Installation Contractors436 preceding
· 365 latest
positive awards
| $111M | $82.3M | Down $28.6MDown 25.8% |
3NAICS 541620Environmental Consulting Services77 preceding
· 47 latest
positive awards
| $36.5M | $15M | Down $21.5MDown 58.9% |
4NAICS 541611Administrative Management and General Management Consulting Services640 preceding
· 491 latest
positive awards
| $373.2M | $358.1M | Down $15.1MDown 4.1% |
5NAICS 811219Other Electronic and Precision Equipment Repair and Maintenance27 preceding
· 12 latest
positive awards
| $21.5M | $13.2M | Down $8.3MDown 38.7% |
Scope and comparison rules
The latest period runs from Sep 5, 2025 through Sep 4, 2026. It is compared with Sep 5, 2024 through Sep 4, 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
$294.2M Reported obligations - 347 prime contractorsNAICS 237310
Highway, Street, and Bridge Construction
$4.3B Reported obligations - 71 prime contractorsNAICS 238160
Roofing Contractors
$46.2M Reported obligations - 158 prime contractorsNAICS 238210
Electrical Contractors and Other Wiring Installation Contractors
$578M Reported obligations - 207 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 - 122 prime contractorsNAICS 238990
All Other Specialty Trade Contractors
$55.3M Reported obligations - 126 prime contractorsNAICS 334111
Electronic Computer Manufacturing
$757.8M Reported obligations - 121 prime contractorsNAICS 334220
Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
$512.1M Reported obligations - 89 prime contractorsNAICS 334290
Other Communications Equipment Manufacturing
$72.7M Reported obligations - 35 prime contractorsNAICS 334310
Audio and Video Equipment Manufacturing
$26.7M Reported obligations - 172 prime contractorsNAICS 334419
Other Electronic Component Manufacturing
$88.6M Reported obligations - 133 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
$113.1M Reported obligations - 74 prime contractorsNAICS 335999
All Other Miscellaneous Electrical Equipment and Component Manufacturing
$134.8M Reported obligations - 46 prime contractorsNAICS 336413
Other Aircraft Parts and Auxiliary Equipment Manufacturing
$17.4M Reported obligations - 49 prime contractorsNAICS 336611
Ship Building and Repairing
$1.3B Reported obligations - 41 prime contractorsNAICS 337214
Office Furniture (except Wood) Manufacturing
$102.8M Reported obligations - 50 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
$307.9M 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
$71.5M Reported obligations - 462 prime contractorsNAICS 541330
Engineering Services
$7B Reported obligations - 94 prime contractorsNAICS 541380
Testing Laboratories and Services
$246.6M Reported obligations - 210 prime contractorsNAICS 541511
Custom Computer Programming Services
$1.1B Reported obligations - 156 prime contractorsNAICS 541512
Computer Systems Design Services
$2B 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
$31.6M Reported obligations - 118 prime contractorsNAICS 541620
Environmental Consulting Services
$94.1M Reported obligations - 96 prime contractorsNAICS 541690
Other Scientific and Technical Consulting Services
$104.8M Reported obligations - 298 prime contractorsNAICS 541715
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
$495.2M Reported obligations - 40 prime contractorsNAICS 541720
Research and Development in the Social Sciences and Humanities
$62.9M Reported obligations - 199 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
$362.1M Reported obligations - 60 prime contractorsNAICS 561621
Security Systems Services (except Locksmiths)
$181M 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
$26M Reported obligations - 116 prime contractorsNAICS 562910
Remediation Services
$193.1M Reported obligations - 211 prime contractorsNAICS 611430
Professional and Management Development Training
$217.1M Reported obligations - 61 prime contractorsNAICS 611512
Flight Training
$139.8M 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.