Federal NAICS Codes

NAICS 212312

Crushed and Broken Limestone Mining and Quarrying

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 212312.

NAICS 212312 federal market metrics

Total obligations
$254.3M
Total awards
3,282 awards
Active obligations
$16.2M
Size standard
750 employees

What this NAICS covers

NAICS 212312 covers establishments that mine, crush, and process limestone rock into crushed stone, aggregate, and related products, including quarrying, primary crushing, sizing, and stockpiling for sale and shipment.

Federal opportunities under 212312 typically involve long-term supply contracts for specified aggregate gradations, quarry crushing and stockpile management, material testing certificates, bulk delivery logistics, and compliance with mining permits and environmental controls.

FY2025 snapshot

Obligations
$23.6M
Awards
105
Average award
$224.5K
Change from FY2024
+37.9%

Recent awards

Search contractors

$60,000

CROWLEY HOLDINGS LLC

Forest Service

PIID
12444026P0052
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

$84,744

E & J EXPRESS LOGISTICS LLC

US Fish and Wildlife Service

PIID
140FS226P0127
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

$22,338

CROWLEY HOLDINGS LLC

National Park Service

PIID
140P1226P0014
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

$31,755

CROWLEY HOLDINGS LLC

US Fish and Wildlife Service

PIID
140FS226P0099
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

$562,905

GIVING TREE CAPITAL, LLC

US Fish and Wildlife Service

PIID
140F0S26P0008
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

$12,613

CAVE QUARRIES INC

US Fish and Wildlife Service

PIID
140FS226P0061
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

$21,126

GIVING TREE CAPITAL, LLC

US Fish and Wildlife Service

PIID
140FS326P0050
PSC
5610 - MINERAL CONSTRUCTION MATERIALS, BULK

FAQ

What work fits NAICS 212312?
  • Supplying crushed limestone aggregate meeting specified sieve gradations and providing certified material test reports for construction base and backfill.
  • Operating quarry crushing and screening circuits to produce required gradations with stockpile management and load-out documentation.
  • Delivering bulk loads by tonnage with scale tickets, delivery schedules, and testing certificates for use in paving, base course, or erosion control.
  • Providing graded limestone products for concrete aggregate with documented gradation, specific gravity, and wash loss test results.
When is NAICS 212312 a weak fit?
  • Lime manufacturing or calcination where limestone is chemically processed into lime products rather than crushed and sold as aggregate.
  • Ready-mix concrete supply where the contractor produces and delivers concrete mixtures rather than supplying quarry-produced crushed limestone aggregate.
  • Site excavation and rock removal services that remove material for disposal without producing and supplying processed crushed stone products for sale.
What solicitation language points to NAICS 212312?
  • Specifications that list required aggregate gradations, sieve analysis results, compressive properties, and required material test reports with each delivery.
  • Contract clauses requiring proof of mining permits, environmental compliance measures, quarry reclamation plans, or certified scale tickets for tonnage accounting.
  • Delivery and logistics requirements specifying bulk tonnage delivery, stockpile management plans, load-out schedules, and material traceability records.

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