Great Lakes Dredge & Dock Co, LLC
Houston, TX
- UEI
- M9LFLA6K8HE4
- CAGE
- 1BSU5
- Primary NAICS
- 237990 Other Heavy and Civil Engineering Construction
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
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-
Parent
Houston, TX
Y1TKNHJ8TK71
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Parent
Houston, TX
Y1TKNHJ8TK71
- SAM.gov registration date
- Physical address
- 9811 Katy Fwy Suite 1200, Houston, TX 77024, USA
- Website
- gldd.com
- Founded
- 1890
- Employees
- 251-1K
- Estimated annual revenue
- $500M-$1B
- Industry
-
- Industrials
- Capital Goods
- Construction & Engineering
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $83,351,049 |
| FY2025 | $336,601,883 |
| FY2024 | $636,060,533 |
| FY2023 | $527,915,644 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $83,351,049 |
Contract vehicles
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Dredgit Corporation | Houston, TX | 237990 Other Heavy and Civil Engineering Construction |
| Weeks Marine, Inc. | Covington, LA | 237990 Other Heavy and Civil Engineering Construction |
| GEO Gradel Co | Toledo, OH | 237990 Other Heavy and Civil Engineering Construction |
| King Co Inc. | Holland, MI | 237990 Other Heavy and Civil Engineering Construction |
| Cottrell Contracting Corporation | Chesapeake, VA | 237990 Other Heavy and Civil Engineering Construction |
About the company
Great Lakes Dredge & Dock Co, LLC, a subsidiary of Houston-based Great Lakes Dredge & Dock Corporation, is the federal government's primary large-scale dredging and marine construction contractor, operating as a prime contractor on 100% of its 1,115 recent federal awards across the U.S. Army Corps of Engineers without competing under any small-business set-asides. The company specializes in hopper dredging, cutterhead hydraulic pipeline dredging, maintenance dredging, beach renourishment, and coastal storm risk management across harbor channels, inland waterways, and shoreline projects nationwide.
Customer concentration flows heavily through Army Corps of Engineers districts. The top five funding entities account for approximately 74% of combined potential value: the Department of the Army Corps of Engineers Engineering District Jacksonville leads with 72 awards worth $2.44 billion (centered on Florida harbor and beach projects); the broader Department of the Army Corps of Engineers carries 426 awards totaling $2.06 billion; the Philadelphia District holds 53 awards valued at $1.36 billion (primarily New Jersey and Delaware beach nourishment); the New York District commands 55 awards worth $1.18 billion; and the Charleston District anchors $694.4 million across 15 awards. The portfolio spans 35 distinct federal agencies, but Corps work dominates by multiple magnitudes.
Activity has remained steady at 15–22 awards annually over the past five years; the company is currently executing $10.52 billion in combined potential value across all awards, with $9.75 billion obligated. Primary NAICS classification is 237990 (Other Heavy and Civil Engineering Construction), which covers 519 of 526 awards with category data; PSC codes concentrate in Maintenance Of Dredging Facilities (106 awards), Construction Of Dredging Facilities (77), and related dredging maintenance and repair (71 and 66 respectively).
Representative recent prime work includes a $235.4 million hopper dredging contract for the Sabine-Neches Waterway Channel Improvement Project in Texas (September 2024), a $174.8 million channel improvement and dredging reach contract for Freeport Harbor (July 2023), a $117.98 million beach fill project in Beach Haven, New Jersey (August 2024), a $113.5 million Manasquan Beach Fill modification in New Jersey (October 2024), and a $74.3 million emergency renourishment contract for Myrtle Beach, South Carolina (December 2024). The company also holds three indefinite delivery/indefinite quantity vehicles: a $98 million single-award hopper dredging contract for Freeport Harbor through December 2026 (U.S. Army Corps of Engineers), a $59.1 million single-award station dredging IDIQ for the McClellan-Kerr Arkansas River Navigation System through August 2027 with eleven task orders issued ranging from $280,500 to $6.7 million, and a $49.5 million multiple-award DREDGE MATOC through September 2027.
Nine awards with ultimate completion in the next twenty-four months carry combined potential value of $528.6 million, signaling a material recompete cliff in that window. The company does not sub-award work; its award footprint is 100% prime delivery.
Quick answers
Is Great Lakes Dredge & Dock Co, LLC registered in SAM.gov?
Yes. Great Lakes Dredge & Dock Co, LLC's SAM.gov registration is active through June 22, 2027.
Which contract vehicles does Great Lakes Dredge & Dock Co, LLC hold?
Great Lakes Dredge & Dock Co, LLC holds a place on 5 federal contract vehicles, including FY 22 DREDGE MATOC.
How much has Great Lakes Dredge & Dock Co, LLC received in federal contracts?
Federal contracts obligated $336,601,883 to Great Lakes Dredge & Dock Co, LLC in fiscal year 2025 and $1,583,929,109 in fiscal years 2023 through 2027.
How does Great Lakes Dredge & Dock Co, LLC rank among federal contractors?
Great Lakes Dredge & Dock Co, LLC ranked #1 in PSC Z1KB, #1 in PSC Z1KF and #2 in PSC Z1 in FY2025.
What is Great Lakes Dredge & Dock Co, LLC's most recent federal award?
Great Lakes Dredge & Dock Co, LLC's most recent federal contract award is The U.S. Army corps of engineers (USACE), philadelphia district (NAP), intends to award the contract for the beach… (W912BU26CA025), from ENDIST Philadelphia (USACE), on June 2, 2026.
On GovTribe
See Great Lakes Dredge & Dock Co, LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors