Company Description
Great Lakes Dredge & Dock Corporation provides dredging services in the United States.
The company offers capital dredging that consists of port expansion projects; coastal restoration and land reclamations; trench digging for pipelines, tunnels, and cables; and other dredging related to the construction of breakwaters, jetties, canals, and other marine structures.
It is also involved in coastal protection projects comprising moving sand from the ocean floor to shoreline locations where erosion threatens shoreline assets; maintenance dredging, which consists of the re-dredging of previously deepened waterways and harbors to remove silt, sand, and other accumulated sediments; and lake and river dredging, inland levee and construction dredging, environmental restoration and habitat improvement, and other marine construction projects.
In addition, the company operates hydraulic dredges, hopper dredges, mechanical dredges, scows, and multi cats equipment.
It serves federal, state, and local governments; foreign governments; and domestic and foreign private concerns comprising utilities, oil and gas, and other energy companies.
The company was formerly known as Lydon & Drews Partnership and changed its name to Great Lakes Dredge & Dock Corporation in 1905.
Great Lakes Dredge & Dock Corporation was founded in 1890 and is headquartered in Houston, Texas.
| Country | United States |
| Founded | 1890 |
| IPO Date | Dec 27, 2006 |
| Industry | Engineering & Construction |
| Sector | Industrials |
| Employees | 398 |
| CEO | Lasse Petterson |
Contact Details
Address: 9811 Katy Freeway, Suite 1200 Houston, Texas 77024 United States | |
| Phone | 346 359 1010 |
| Website | gldd.com |
Stock Details
| Ticker Symbol | GLDD |
| Exchange | NASDAQ |
| Stock Type | Common Stock |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0001372020 |
| CUSIP Number | 390607109 |
| ISIN Number | US3906071093 |
| Employer ID | 20-5336063 |
| SIC Code | 1600 |
Key Executives
| Name | Position |
|---|---|
| Lasse J. Petterson | Chief Executive Officer, President and Director |
| David J. Johanson | Senior Vice President of Project Acquisition and Operations |
| Christopher G. Gunsten P.E. | Senior Vice President of Project Services and Fleet Engineering |
| Ryan M. Bayer | Vice President and Chief Accounting Officer |
| Trond Ellefsen | Vice President and Chief Technology and Information Security Officer |
| Eric Birge | Vice President of Investor Relations and Finance |
| Robert Worrell | Vice President of Human Resources and Labor Relations |
| Steven W. Becker | Senior Vice President of Fleet Engineering |
| William H. Hanson | Senior Vice President of Market Development |
| Dr. Eleni Beyko Ph.D. | Senior Vice President of Offshore Energy |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Mar 9, 2026 | 10-K/A | [Amend] Annual report |
| Mar 4, 2026 | SC 14D9 | Filing |
| Mar 4, 2026 | SCHEDULE 13G/A | Filing |
| Mar 4, 2026 | SC TO-T | Filing |
| Feb 23, 2026 | 10-K | Annual Report |
| Feb 23, 2026 | 8-K | Current Report |
| Feb 12, 2026 | 8-K | Current Report |
| Feb 11, 2026 | SC14D9C | Filing |
| Feb 11, 2026 | SC TO-C | Filing |
| Feb 11, 2026 | 8-K | Current Report |