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Open federal opportunities in NAICS 212321 (Construction Sand And Gravel Mining)

There are currently 4 open federal opportunities indexed under NAICS 212321, from 3 agencies. 3 close in the next 14 days. 100% carry a small-business or socio-economic set-aside.

NAICS 212321 sits in industry group 2123 (Nonmetallic Mineral Mining And Quarrying), part of the Mining Quarrying And Oil And Gas Extraction sector. It's the code contracting officers assign to say which industry a requirement belongs to, and it sets the size standard a firm must meet to compete for any small-business set-aside.

Open now
4
Closing in 14 days
3
Set aside
100%

Agencies buying most in this space

Department of Agriculture posted 50% of the open NAICS 212321 notices.

  • Department of Agriculture2 open
  • Department of Defense1 open
  • Department of the Interior1 open

Where these opportunities are in the process

  • Solicitation: open for bids now1
  • Combined synopsis/solicitation: open for bids now, usually a simpler buy3

Set-asides

A set-aside limits who can bid. If your firm holds the matching certification and meets the size standard for NAICS 212321, these are the opportunities with the fewest competitors.

  • Small business4 (100%)

Closing next

Primes that subcontract in NAICS 212321

Prime contractors with the most distinct subcontractors on reported subawards in this code. A good place to start if you'd rather team than bid alone.

  • AMES 1 , LLC1 subs

Which of these could you actually win?

Score your firm against a NAICS 212321 opportunity. Free, no login.

Score your fit

Source: SAM.gov opportunity data and FSRS subaward data indexed by WinnableGov · as of October 26, 2026. Counts reflect open notices with a future response deadline. NAICS 212321 (Construction Sand And Gravel Mining) data refreshes hourly.