Federal Contracts in NAICS 237990 (Other Heavy and Civil Engineering Construction)

3,679 total opportunities indexed 292 award notices 3,387 open / pre-award

What is NAICS 237990?

Heavy and civil-engineering construction not classified elsewhere — pipelines, dams, harbors, dredging, marine construction.

SBA small-business size standard: $45.0M average annual receipts

Top Awardees in NAICS 237990

Vendor	Awards	Total Value
MORRISH-WALLACE CONSTRUCTION, INC. CAGE 5Y029	6	$212.0M
DEAN MARINE AND EXCAVATING, INC. CAGE 498B6	6	$210.3M
WEEKS MARINE, INC. CAGE 1RHV3	5	$191.6M
GREAT LAKES DREDGE & DOCK CO, LLC CAGE 1BSU5	5	$88.0M
MCMILLEN, INC. CAGE 41PM4	4	$84.9M
KING CO INC CAGE 0EJK0	4	$183.5M
MANSON CONSTRUCTION CO CAGE 0FCP9	4	$100.7M
MICHELS CONSTRUCTION, INC. CAGE 9C1R4	3	$106.8M
INLAND DREDGING COMPANY, L.L.C. CAGE 093F7	3	$31.0M
DOUBLE BRONZE STAR MARKETING AND CONSULTING, INC CAGE 85E49	3	$5.9M
J. F. BRENNAN COMPANY, INC. CAGE 0EV95	3	$205.1M
COTTRELL CONTRACTING CORPORATION CAGE 091W6	3	$26.7M
CURTIN MARITIME CORP CAGE 4ADU6	3	$32.6M
VIKING MARINE CONSTRUCTION LLC CAGE 90N74	3	$182.8M
DIVERSIFIED FABRICATORS & ERECTORS, INC CAGE 15NF5	2	$1.6M
HME CONSTRUCTION INC CAGE 1KNC1	2	$12.9M
MAGRUDER CONSTRUCTION CO INC CAGE 0JHC5	2	$111.6M
SOUTHERN DREDGING CO INC CAGE 0C011	2	$6.9M
AGM MARINE CONTRACTORS INC CAGE 0JVC7	2	$3.3M
WORRELL CONTRACTING CO INC CAGE 1PKN0	2	$5.2M

Award Trends (2024-2026)

Year	Awards	Total Obligated
2026	164	$4.5B
2025	128	$6.1B

Top Buying Agencies

Agency	Solicitations
DEPT OF DEFENSE	2,871
INTERIOR, DEPARTMENT OF THE	374
AGRICULTURE, DEPARTMENT OF	195
VETERANS AFFAIRS, DEPARTMENT OF	115
HOMELAND SECURITY, DEPARTMENT OF	81
COMMERCE, DEPARTMENT OF	16
STATE, DEPARTMENT OF	10
INTERNATIONAL BOUNDARY AND WATER COMMISSION: US-MEXICO	10
TRANSPORTATION, DEPARTMENT OF	3
HEALTH AND HUMAN SERVICES, DEPARTMENT OF	3

Set-Aside Breakdown

Set-Aside Type	Opportunities
Open / Full and Open	1,770
SBA	1,358
NONE	344
SDVOSBC	104
8A	32
WOSB	31
HZC	14
ISBEE	10
WOSBSS	6
8AN	5
SDVOSBS	4
SBP	1

Active Opportunities

Title	Agency	Deadline
Z--Construct Resilience Improvements to Santa Barbara Island Wharf	INTERIOR, DEPARTMENT OF THE	2026-07-24T17:00:00+02:00
FY26 Charleston Harbor Lower Harbor Maintenance Dredging	DEPT OF DEFENSE	2026-07-14T18:00:00+02:00
GIWW Matagorda to Corpus Christi Bay Beneficial Use Site (Bus A) Improvement, in Calhoun County, Texas	DEPT OF DEFENSE	2026-07-23T17:00:00+02:00
WWYK250096 - Repair Stormwater Spill Gate 11 Structure	DEPT OF DEFENSE	2026-07-20T21:00:00+02:00
Y--Speelyi Shoreline protection	INTERIOR, DEPARTMENT OF THE	2026-07-22T21:00:00+02:00
Pre Solicitation Notice: FY27 Maintenance Dredging Yokohama North Dock	DEPT OF DEFENSE	2026-11-16T07:00:00+01:00
Dashields Locks and Dam Hydraulic System Upgrade	DEPT OF DEFENSE	2026-07-28T17:00:00+02:00
INDEFINITE DELIVERY INDEFINITE QUANTITY MULTIPLE AWARD CONSTRUCTION CONTRACT FOR NEW CONSTRUCTION, REPAIR, AND RENOVATIO	DEPT OF DEFENSE	2026-08-11T23:00:00+02:00
Naval Submarine Base Kings Bay, Maintenance Dredging, Entrance Channel, Camden County, Georgia and Nassau County, Florid	DEPT OF DEFENSE	2026-08-12T19:00:00+02:00
Z--GLAC REMOVE SLUDGE AT WLD WWTP	INTERIOR, DEPARTMENT OF THE	2026-07-14T18:00:00+02:00

How to Bid Federal Contracts in NAICS 237990

USACE Districts (especially South Atlantic + Pacific Ocean Divisions), USCG, NOAA, and NAVFAC are the top buyers. Most projects exceed small-business size thresholds and run as either full-and-open or HUBZone set-asides. Bonding + dredging-equipment ownership are gating factors for marine work.

« Browse all NAICS codes

Explore more federal-contracting data

Browse opportunities by NAICS code · set-aside category · state & jurisdiction · buying agency