| Brennan Marine, Inc. | La Crosse, WI; Upper Mississippi, Wisconsin rivers | https://www.brennanmarine.com |
| Callan Marine | Galveston, TX | https://www.callanmarineltd.com |
| Cashman Dredging & Marine Contracting | Quincy, MA; US East Coast | https://www.cashmandredging.com |
| Coastal Dredging Company | Southeast US | http://www.coastaldredgingcompanyinc.com |
| Coastal Marine Contractors LLC | Slidell, LA | http://www.coastalmc.com |
| Cottrell Contracting | Chesapeake, VA | https://www.cottrellcontracting.com |
| Couvillion Group | Belle Chasse, LA | https://www.couvilliongrp.com |
| Dean Marine & Excavating | Mount Clemens, MI | https://www.deanmarine.net |
| Donjon Marine | Hillside, NJ; East Coast & Gulf | https://www.donjon.com |
| Dredge America | Kansas City, KS | https://www.dredgeamerica.com |
| Durocher Marine (Kokosing) | Cheboygan, MI | https://www.kokosing.biz |
| Dutra Group | San Rafael, CA; California & West Coast | https://www.dutragroup.com |
| Eagle Marine Towing | Houma, LA | https://www.emtowing.com |
| Encore Dredging Partners | Houston, TX | https://www.encoredredgingpartners.com |
| Gator Dredging | Largo, FL | https://www.gatordredging.com/ |
| Geo. Gradel Co. | Toledo, OH | https://geogradelco.com/ |
| Gillen Marine Construction | Mequon, WI | https://www.gillenmarine.com |
| Great Lakes Dock & Materials | Muskegon, MI | https://greatlakesdock.com |
| Great Lakes Dredge & Dock | Houston, TX; US coasts, inland, international | https://www.gldd.com |
| Gulf Marine Solutions | Mississippi Gulf Coast | https://www.gulfmarinesolutions.com |
| Hawaiian Dredging Construction | Honolulu, HI | https://www.hdcc.com |
| JT Cleary (Tully Group) | New York, NY | https://jtcleary.com |
| Luhr Crosby LLC | MI / OH; Great Lakes, inland rivers | https://www.luhr.com |
| Manson Construction | Seattle, WA; West Coast, AK, Hawaii | https://www.mansonconstruction.com |
| Marine Contracting Corporation | Chesapeake, VA | https://www.marinecontractingcorp.com |
| Matthews Brothers Dredging | Pascagoula, MS | https://www.mbdllc.net |
| MCM Marine | Sault Ste. Marie, MI | http://www.mcmmarine.com |
| McMullen & Pitz Construction | Manitowoc, WI | https://www.mcmullenandpitz.com |
| Mike Hooks LLC | Westlake, LA | https://www.mikehooks.com |
| Norfolk Dredging Company | Chesapeake, VA | https://www.norfolkdredging.com |
| Orion Group Holdings | Houston, TX | https://www.oriongroupholdingsinc.com |
| Patriot Marine Services | Lockport, LA | https://www.patriotmarineservicesllc.com |
| Posillico Inc. | Farmingdale, NY | https://posillicoinc.com |
| Reinauer Transportation | Staten Island, NY | https://www.reinauer.com/ |
| Robbins Maritime | Norfolk, VA | https://www.robbinsmaritime.com |
| Ryba Marine Construction | Cheboygan, MI; Great Lakes | https://www.rybamarine.com |
| Scarborough Marine Group | Somers Point, NJ | https://scarboroughmarinegroup.com |
| Shoreline Contractors | Houston, TX | https://www.shorelinetx.com |
| Simpson & Brown | Cranford, NJ | https://simpsonandbrown.com |
| Smith Marine Towing | Morgan City, LA | https://www.smithmarinetowing.com |
| Southern Dredging & Marine | Southeast US | https://www.southerndredgingandmarine.com |
| Southern Maryland Dredging | Friendship, MD | https://southernmarylanddredging.com |
| Specialty Diving of Louisiana | Loranger, LA | https://www.sdive.com |
| The King Company | Holland, MI | https://www.kingco.us |
| Trevcon Construction | Liberty Corner, NJ | https://trevconconstruction.com |
| Weeks Marine | Cranford, NJ; East & Gulf Coasts | https://www.weeksmarine.com |