NAICS Code Guide
NAICS 237990: Other Heavy Construction
237990 captures everything that doesn't fit cleanly into other heavy-civil codes — site preparation, levee work, marine construction, and shoreline projects.
Quick facts
- NAICS code
- 237990
- Title
- Other Heavy Construction
- SBA size standard
- $45M
Government buyers
Example contract opportunities
- Levee armoring (USACE)
- Marine wharf construction (NAVFAC)
- Disaster-debris removal (FEMA)
Industry context
Many opportunities flow through MATOC pools — getting on a regional MATOC is the dominant entry strategy.
Related NAICS codes
- NAICS 237310 — Highway, Street & Bridge Construction
- NAICS 237110 — Water & Sewer Line Construction
- NAICS 562910 — Remediation Services
Related industries
States with the most activity in this NAICS
FAQs
- What is NAICS 237990?
- NAICS 237990 is the federal classification for Other Heavy Construction. 237990 captures everything that doesn't fit cleanly into other heavy-civil codes — site preparation, levee work, marine construction, and shoreline projects.
- What is the SBA small-business size standard for NAICS 237990?
- The SBA size standard for NAICS 237990 is $45M. A business at or below this threshold qualifies for small-business set-asides under this code.
- Which agencies buy under NAICS 237990?
- Top federal buyers under NAICS 237990 include U.S. Army Corps of Engineers, NAVFAC, FEMA.
- What are example contracts under NAICS 237990?
- Levee armoring (USACE); Marine wharf construction (NAVFAC); Disaster-debris removal (FEMA).
- What are the most-related NAICS codes?
- Closely related codes include 237310 (Highway, Street & Bridge Construction), 237110 (Water & Sewer Line Construction), 562910 (Remediation Services).