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

2,991 total opportunities indexed 240 award notices 2,751 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
CK May Excavating, Inc.	11	$239.1M
MORRISH-WALLACE CONSTRUCTION, INC. CAGE 5Y029	6	$212.0M
DEAN MARINE AND EXCAVATING, INC. CAGE 498B6	5	$195.4M
WEEKS MARINE, INC. CAGE 1RHV3	5	$191.6M
GREAT LAKES DREDGE & DOCK CO, LLC CAGE 1BSU5	5	$88.0M
MANSON CONSTRUCTION CO CAGE 0FCP9	4	$100.7M
KING CO INC CAGE 0EJK0	4	$183.5M
MCMILLEN, INC. CAGE 41PM4	3	$63.9M
THREE OAKS CONSTRUCTION, INC CAGE 9PPC1	2	$14.2M
MICHELS CONSTRUCTION, INC. CAGE 9C1R4	2	$7.3M
VIKING MARINE CONSTRUCTION LLC CAGE 90N74	2	$181.2M
KMC SOLUTIONS, LLC CAGE 884X9	2	$20.8M
Dredgit Corporation CAGE 7CDN1	2	$181.7M
MTC CONSTRUCTION, LLC CAGE 6LV62	2	$2.2M
HENDRICKSON TRANSPORTATION LLC CAGE 6H9B8	2	$44.6M
BETTER BY DESIGN LLC CAGE 5H8U0	2	$190.0M
ALASKA MARINE EXCAVATION LLC CAGE 5BFG5	2	$8.9M
GALE CONSTRUCTION COMPANY OF ILLINOIS CAGE 5A6N2	2	$99.4M
CURTIN MARITIME CORP CAGE 4ADU6	2	$19.8M
C. J. MAHAN CONSTRUCTION COMPANY, LLC CAGE 3N7D2	2	$572.0M

Award Trends (2024–2026)

Year	Awards	Total Obligated
2026	112	$3.5B
2025	128	$6.1B

Top Buying Agencies

Agency	Solicitations
DEPT OF DEFENSE	2,437
INTERIOR, DEPARTMENT OF THE	250
AGRICULTURE, DEPARTMENT OF	133
VETERANS AFFAIRS, DEPARTMENT OF	81
HOMELAND SECURITY, DEPARTMENT OF	62
COMMERCE, DEPARTMENT OF	9
STATE, DEPARTMENT OF	6
INTERNATIONAL BOUNDARY AND WATER COMMISSION: US-MEXICO	6
TRANSPORTATION, DEPARTMENT OF	3
HEALTH AND HUMAN SERVICES, DEPARTMENT OF	3

Set-Aside Breakdown

Set-Aside Type	Opportunities
Open / Full and Open	1,497
SBA	1,082
NONE	271
SDVOSBC	70
WOSB	27
8A	18
HZC	10
SDVOSBS	4
ISBEE	4
8AN	4
WOSBSS	3
SBP	1

Active Opportunities

Title	Agency	Deadline
Mississippi River, Baton Rouge to Gulf, Southwest Pass Hopper Dredge Contract No. 1-2026 (OM26001)	DEPT OF DEFENSE	2026-06-09T00:00:00+00:00
Renovation of the Fish Collection Facility on the Toutle River	DEPT OF DEFENSE	2026-05-25T00:00:00+00:00
Construction Services -Technical Security Upgrade (TSU)	STATE, DEPARTMENT OF	2026-06-08T00:00:00+00:00
Mississippi River, Baton Rouge to Gulf, Southwest Pass Hopper Dredge Contract No. 10-2026 (OM26010)	DEPT OF DEFENSE	2028-05-07T00:00:00+00:00
Z1DA--550-24-109 Pond Area Improvement CON	VETERANS AFFAIRS, DEPARTMENT OF	2026-05-28T00:00:00+00:00
DESIGN-BID-BUILD (DBB) P171 WEAPONS MAGAZINES, NAVAL WEAPONS STATION YORKTOWN, YORKTOWN, VIRGINIA	DEPT OF DEFENSE	2026-05-25T00:00:00+00:00
Beneficial Use of Dredged Material (BUDM) – Salt Marsh Restoration at Naval Submarine Base (NSB) Kings Bay, Georgia	DEPT OF DEFENSE	2026-06-12T00:00:00+00:00
Danville National Cemetery – National Shrine Project 809-NSP25-006	VETERANS AFFAIRS, DEPARTMENT OF	2026-06-08T00:00:00+00:00
Y--GARNET HILL RECREATION AREA IMPROVEMENTS	INTERIOR, DEPARTMENT OF THE	2026-05-18T00:00:00+00:00
Mississippi River, Baton Rouge to Gulf, Southwest Pass Hopper Dredge Contract No. 6-2026 (OM26006)	DEPT OF DEFENSE	2028-05-07T00:00:00+00:00

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.

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