Tugboat Service Companies
| Jack Hornor Marine Survey (Davidsonville, MD)
Primarily Serving: Bowie, MD - Columbia, MD - Silver Spring, MD - Dundalk, MD |
| Jacobsen Pilot Svc Inc (Long Beach, CA)
Primarily Serving: Lakewood, CA - Carson, CA - Bellflower, CA - Paramount, CA |
| Jarvie Marine Surveyors (Scottsdale, AZ)
Primarily Serving: Mesa, AZ - Tempe, AZ - Phoenix, AZ - Gilbert, AZ |
| John E Marrocco Marine (Ormond Beach, FL)
Primarily Serving: Daytona Beach, FL - Port Orange, FL - Palm Coast, FL - Deltona, FL |
| Johnny's Marine (Alamo, GA)
Primarily Serving: Warner Robins, GA - Cobb, GA - Macon, GA - Albany, GA |
| K P Helmrich & Assoc (Saint Amant, LA)
Primarily Serving: Baton Rouge, LA - Kenner, LA - Metairie, LA - New Orleans, LA |
| Kelly Hunter & Co (San Pedro, CA)
Primarily Serving: Torrance, CA - Long Beach, CA - Carson, CA - Redondo Beach, CA |
| Ken's Boat Rental Inc (Belle Chasse, LA)
Primarily Serving: New Orleans, LA - Metairie, LA - Kenner, LA - Gulfport, MS |
| Kinsey Marine Surveying (Mattituck, NY)
Primarily Serving: West Haven, CT - New Haven, CT - Milford, CT - Hamden, CT |
| Knox Marine Consultants (Norfolk, VA)
Primarily Serving: Portsmouth, VA - Chesapeake, VA - Hampton, VA - Virginia Beach, VA |
| Kosnac Floating Derrick Corp (Staten Island, NY)
Primarily Serving: Bayonne, NJ - Elizabeth, NJ - Union, NJ - Newark, NJ |
| L & L Marine Inc (Harvey, LA)
Primarily Serving: New Orleans, LA - Metairie, LA - Kenner, LA - Gulfport, MS |
| La Marque Marine Svc Inc (Solomons, MD)
Primarily Serving: Alexandria, VA - Bowie, MD - Arlington, VA - Annandale, VA |
| Lakes & Eastern Marine Srvyrs (Des Plaines, IL)
Primarily Serving: Mount Prospect, IL - Arlington Heights, IL - Skokie, IL - Palatine, IL |
| Larry W Dobbins Inc (Camptonville, CA)
Primarily Serving: Loomis, CA - Rocklin, CA - Chico, CA - Roseville, CA |
| Lash Marine Svc (Tampa, FL)
Primarily Serving: Brandon, FL - Clearwater, FL - Palm Harbor, FL - Saint Petersburg, FL |
| Lawson & Lawson Towing Co Inc (Wynne, AR)
Primarily Serving: Jonesboro, AR - Memphis, TN - North Little Rock, AR - Little Rock, AR |
| Le Beouf Bros Towing Co Inc (Bourg, LA)
Primarily Serving: Kenner, LA - Metairie, LA - New Orleans, LA - Baton Rouge, LA |
| Linck Marine Surveying (Little Rock, AR)
Primarily Serving: North Little Rock, AR - Conway, AR - Pine Bluff, AR - Jonesboro, AR |
| Lincoln Maritime (Mystic, CT)
Primarily Serving: Warwick, RI - Cranston, RI - Manchester, CT - Providence, RI |
| Litchfield County Marine (Waterbury, CT)
Primarily Serving: Bristol, CT - Meriden, CT - Hamden, CT - New Britain, CT |
| Livingston Marine Assoc (Jamestown, RI)
Primarily Serving: Warwick, RI - Fall River, MA - Cranston, RI - Providence, RI |
| Lloyd's Register Americas Inc (Houston, TX)
Primarily Serving: Pasadena, TX - Missouri City, TX - Sugar Land, TX - League City, TX |
| Lloyd's Register Na Inc (Bellevue, WA)
Primarily Serving: Redmond, WA - Seattle, WA - Renton, WA - Issaquah, WA |
| Lloyds Register North America (Long Beach, CA)
Primarily Serving: Lakewood, CA - Carson, CA - Bellflower, CA - Paramount, CA |
