Which NAICS codes have the most open government bids right now?
As of 2026-09-07, NAICS 237310 (Highway, Street, and Bridge Construction) carries the most open bids in BidSparq's tracked sources with 5,667 solicitations, out of 46,797 open solicitations tagged across 1,245 NAICS codes.
Source: The NAICS Code Lookup, BidSparq
Data as of: September 7, 2026 (refreshed weekly)
Sample: 46,797 open solicitations tagged with a NAICS code in BidSparq's tracked sources, 2026-09-07
License: free to cite with attribution to BidSparq
Essential statistics
- Top three: 237310 Highway, Street, and Bridge Construction (5,667); 236220 Commercial and Institutional Building Construction (3,055); 541330 Engineering Services (3,026).
- The 15 busiest codes hold 69.6% of all NAICS-tagged open bids; the long tail runs across 1,230 other codes.
- 1,245 of the 2,125 codes in the 2022 NAICS list have at least one open bid this week.
Top 15 NAICS codes by open bids
| Rank | NAICS | Industry | Open bids |
|---|---|---|---|
| 1 | 237310 | Highway, Street, and Bridge Construction | 5,667 |
| 2 | 236220 | Commercial and Institutional Building Construction | 3,055 |
| 3 | 541330 | Engineering Services | 3,026 |
| 4 | 237990 | Other Heavy and Civil Engineering Construction | 2,674 |
| 5 | 541512 | Computer Systems Design Services | 2,377 |
| 6 | 238990 | All Other Specialty Trade Contractors | 2,164 |
| 7 | 237110 | Water and Sewer Line and Related Structures Construction | 2,131 |
| 8 | 238210 | Electrical Contractors and Other Wiring Installation Contractors | 1,867 |
| 9 | 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 1,706 |
| 10 | 541310 | Architectural Services | 1,504 |
| 11 | 541690 | Other Scientific and Technical Consulting Services | 1,447 |
| 12 | 541620 | Environmental Consulting Services | 1,434 |
| 13 | 541611 | Administrative Management and General Management Consulting Services | 1,373 |
| 14 | 541618 | Other Management Consulting Services | 1,129 |
| 15 | 561730 | Landscaping Services | 1,021 |
What this means
These counts measure what BidSparq tracks across 23,000+ federal, state, local, education, and healthcare sources, tagged by the NAICS code on the solicitation or assigned by classification; they are not a census of every government bid in the country. The ranking refreshes weekly with the corpus.
A crowded code means more bids and, usually, more competitors. Pair the count with set-aside and recompete signals before choosing where to spend proposal hours.
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