Which NAICS codes have the most active contract vehicles?
NAICS 115310 (Support Activities for Forestry) carries the most active federal contract vehicles, 12,620 held by 4,071 companies, 10.2% of the 123,364 vehicles open for orders as of 2026-09-10.
Source: The Federal Contract Vehicles index (complete IDV parent set), BidSparq
Data as of: September 10, 2026 (refreshed weekly)
Sample: 123,364 active vehicles with a primary NAICS code (as of 2026-09-10).
License: free to cite with attribution to BidSparq
Essential statistics
- Top three codes: 115310 (12,620), 541330 (7,142), 541715 (5,048).
- The top 15 codes account for 42.0% of active vehicles; every vehicle carries one primary NAICS code.
- Highest small-business share among the top ten: 115310 at 98.5%.
NAICS codes by active federal contract vehicles
| Rank | NAICS | Industry | Active vehicles | Holders | Small-business share |
|---|---|---|---|---|---|
| 1 | 115310 | Support Activities for Forestry | 12,620 | 4,071 | 98.5% |
| 2 | 541330 | Engineering Services | 7,142 | 5,243 | 71.5% |
| 3 | 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | 5,048 | 3,512 | 75.7% |
| 4 | 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | 3,862 | 1,067 | 73.8% |
| 5 | 236220 | Commercial and Institutional Building Construction | 3,785 | 1,978 | 78.8% |
| 6 | 541519 | Other Computer Related Services | 2,554 | 1,976 | 80.0% |
| 7 | 541611 | Administrative Management and General Management Consulting Services | 2,492 | 1,640 | 75.5% |
| 8 | 423450 | Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | 2,437 | 241 | 9.3% |
| 9 | 332722 | Bolt, Nut, Screw, Rivet, and Washer Manufacturing | 2,097 | 425 | 92.2% |
| 10 | 336611 | Ship Building and Repairing | 2,023 | 1,149 | 88.5% |
| 11 | 541512 | Computer Systems Design Services | 1,737 | 1,229 | 74.2% |
| 12 | 561210 | Facilities Support Services | 1,580 | 952 | 71.8% |
| 13 | 721110 | Hotels (except Casino Hotels) and Motels | 1,500 | 1,058 | 56.2% |
| 14 | 332510 | Hardware Manufacturing | 1,464 | 572 | 83.2% |
| 15 | 485999 | All Other Transit and Ground Passenger Transportation | 1,434 | 596 | 96.6% |
What this means
An indefinite delivery vehicle is the umbrella contract agencies place orders under: GWACs, GSA Schedules, IDIQs, BPAs and BOAs. This corpus holds every IDV parent USAspending records with a transaction since fiscal 2008, refreshed daily, so these are counts over the whole population, not a sample. Active means the ordering period ends today or later.
Counts are of vehicles, never of dollars: a vehicle's ceiling is shared by every holder and says nothing about what has been ordered. Holder rankings exclude USAspending's recipient placeholder for miscellaneous foreign awardees.
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