237990: Other Heavy and Civil Engineering Construction
Sector 23, Construction. Subsector 237, Heavy and Civil Engineering Construction. The federal award record for this code: who buys it, who won it, what it went for, what recompetes soon.
NAICS 237990 in numbers
The Army Corps of Engineers dominates this category, with five of the six top buyers managing civil engineering projects at major installations. The New Orleans district leads with 1,405 awards totaling $17.11 billion, followed by Jacksonville with 660 awards worth $10.81 billion. Most awards go to open competition (23,257 awards), but small business set-asides account for a significant share: 10,244 SBA awards, 7,667 8(a) awards, and 1,978 HUBZone awards. Vendors should expect to compete against 3,327 distinct firms on record.
The median award of $169,100 suggests this category includes many smaller projects alongside major contracts. However, the total value of $150.4 billion across 53,349 awards indicates substantial opportunity. Firms considering entry should note that open competition dominates, but small business certifications (SBA, 8(a), HUBZone, SDVOSBC) create distinct pathways. The 361 active notices show ongoing procurement activity.
Watch for 633 contracts worth $11.18 billion ending within the next 12 months. These represent recompete opportunities at established locations. The New Orleans, Jacksonville, and Galveston districts account for over $32 billion in historical awards, so monitoring their upcoming solicitations will be critical for firms seeking to enter or expand in this market.
Everything behind these numbers for NAICS 237990
- Every buying office that awarded in this code, ranked by what they spent
- Every vendor that won, resolved to one record per business
- Every award back to FY2001, searchable and exportable
- Contracts ending soon, scored for how open the next round looks
- Every open notice on this code, with the buyer history beside it
The numbers above are open to anybody. The organized record behind them is what a plan pays for: every award, every buyer, every vendor, cleaned, resolved and read again every night.
Open right now under NAICS 237990
395 open notices right now, 31 closing within seven days. The newest 5:
| Posted | Notice | Buyer | NAICS | Set-aside | Due |
|---|---|---|---|---|---|
| Oct 28, 2026 | Houston Ship Channel (HSC) Expansion Channel Improvement Project (ECIP) 11, Package 9, Segment 4 Boggy Bayou tSolicitation | W076 ENDIST GALVESTON | 237990 | Dec 1, 2026 | |
| Oct 28, 2026 | Y--Timucuan Ecological and Historic Preserve TIMU-335Solicitation | DSC CONTRACTING SERVICES DIVISION | 237990 | Nov 13, 2026 | |
| Oct 28, 2026 | Duluth Vessel Yard Phase III RepairsSolicitation | W072 ENDIST DETROIT | 237990 | SBA | Dec 1, 2026 |
| Oct 28, 2026 | Mid-Bay James Island Restoration Phase 2Solicitation | W2SD ENDIST BALTIMORE | 237990 | Nov 30, 2026 | |
| Oct 28, 2026 | Shipyard Infrastructure Optimization Program Multi-Mission Dry Dock, Multiple Award Construction ContractSolicitation | NAVFACSYSCOM NORTHWEST | 237990 | Dec 1, 2026 |
Where this code sits
NAICS 237990 is a six-digit national industry in the 2022 North American Industry Classification System. It sits under industry group 2379 (Other Heavy and Civil Engineering Construction), in subsector 237 (Heavy and Civil Engineering Construction) of sector 23 (Construction).
Federal buyers assign one NAICS code to each award and each notice. The code describes the kind of business the buyer expects to perform the work, not the item itself; the item is described by the PSC code. The numbers above come from awards and notices carrying this exact code. Related work often sits in the neighboring codes listed below, so watch the neighbors too.
The official definition, with what the code includes and excludes, is on the Census NAICS page linked at the bottom.
How to use this page
Who bought it ranks contracting offices by what they obligated under this code. Who won it ranks vendors after names are resolved to one record each. What it went for shows award size bands; the median describes a typical award better than the average. What recompetes soon lists awards whose period of performance ends inside twelve months.
A code with nothing on record yet says so. Members see the individual awards and notices behind every number, buyer and incumbent profiles, alerts and briefs.
Related
- Every NAICS codeThe index by sector and subsector.
- Choosing NAICS codesPrimary and secondary codes for your registration.
- Recompete radarContracts in this code coming due.
- Award historyWho won last time and at what price.
See who was last awarded in your NAICS
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