| S.No | Name | Business | Country | Port (city) |
| 1 | Clipper Bulk Portland Inc | Owner, Manager | United States of America | Portland |
| 2 | Seabourn Cruise Line | Port Service | United States of America | Miami |
| 3 | Crowley Maritime Corp | Owner, Manager | United States of America | Oakland |
| 4 | WesternGeco LLC | Owner, Manager | United States of America | Houston |
| 5 | Oglebay Norton | Owner, Manager | United States of America | Cleveland |
| 6 | Sealift Inc | Owner, Manager | United States of America | Oyster Bay |
| 7 | Skaarup Shipping Corp | Owner, Manager | United States of America | Greenwich |
| 8 | APL Ltd | Owner, Manager | United States of America | Oakland |
| 9 | Halliburton Energy Services | Owner, Manager | United States of America | Duncan |
| 10 | Brown & Root | Owner, Manager | United States of America | Houston |
| 11 | Green Cove Maritime | Owner, Manager | United States of America | Fort Lauderdale |
| 12 | Ionian Transport | Owner, Manager | United States of America | New York |
| 13 | Groton Pacific Carriers Inc | Owner, Manager | United States of America | Stamford |
| 14 | Conoco Shipping Co | Owner, Manager | United States of America | Houston |
| 15 | Pacific-Gulf Marine | Owner, Manager | United States of America | Terrytown |
| 16 | Hyde Shipping Corp | Owner, Manager | United States of America | Medley |
| 17 | Royal Caribbean Cruises Ltd | Owner, Manager | United States of America | Miami |
| 18 | Washington State Ferries | Owner, Manager | United States of America | Seattle |
| 19 | West Indies Transport Ltda SA | Owner, Manager | United States of America | Oyster Bay |
| 20 | Stolt-Nielsen Transportation | Owner, Manager | United States of America | Norwalk |
| 21 | Delaware River & Bay Authority | Owner, Manager | United States of America | New Castle |
| 22 | Great Lakes Fleet Inc | Owner, Manager | United States of America | Duluth |
| 23 | Brokerage & Management Corp | Owner, Manager | United States of America | New York |
| 24 | Tropical Shipping Co Ltd | Owner, Manager | United States of America | Riviera Beach |
| 25 | Tidewater Marine LLC | Owner, Manager | United States of America | New Orleans |
| 26 | Rowan Companies Inc | Owner, Manager | United States of America | Houston |
| 27 | Ocean Ships | Owner, Manager | United States of America | Houston |
| 28 | International Maritime Ships | Owner, Manager | United States of America | Miami |
| 29 | Northern Marine Management LLC | Owner, Manager | United States of America | Houston |
| 30 | American Heavy Lift Shipping | Owner, Manager | United States of America | San Antonio |
| 31 | Delta Navigation Corp | Owner, Manager | United States of America | New York |
| 32 | Interocean American Shipping | Owner, Manager | United States of America | Voorhees |
| 33 | McDermott Inc | Owner, Manager | United States of America | New Orleans |
| 34 | International Shipholding Corp | Owner, Manager | United States of America | Mobile |
| 35 | Alaska State | Owner, Manager | United States of America | Juneau |
| 36 | ConocoPhillips Inc | Owner, Manager | United States of America | Houston |
| 37 | TORM USA LLC | Ship Broker | United States of America | Stamford |
| 38 | Bernuth Agencies Inc | Owner, Manager | United States of America | Miami |
| 39 | Marine Chartering Co Inc | Port Agent | United States of America | San Francisco |
| 40 | Keystone Shipping | Owner, Manager | United States of America | Bala-Cynwyd |
| 41 | Waterman Steamship Corp | Owner, Manager | United States of America | Mobile |
| 42 | Carnival Corp | Owner, Manager | United States of America | Doral |
| 43 | Apex Marine | Owner, Manager | United States of America | New York |
| 44 | American Steamship Co | Owner, Manager | United States of America | Williamsville |
| 45 | Matson Navigation | Owner, Manager | United States of America | Oakland |
| 46 | Marine Transport Corp | Owner, Manager | United States of America | Secaucus |
| 47 | SPAR Associates Inc | Other | United States of America | Annapolis |
| 48 | Chromalox Inc | Marine Equipment | United States of America | Pittsburgh |
| 49 | Woodward | Marine Equipment | United States of America | Fort Collins |
| 50 | American Boa Inc | Marine Equipment | United States of America | Cumming |
| 51 | Microphor | Marine Equipment | United States of America | Willits |
| 52 | Bettis Corp | Marine Equipment | United States of America | Waller |
| 53 | General Marine Refrig | Marine Equipment | United States of America | Philadelphia |
| 54 | Umoe Schat-Harding Inc | Marine Equipment | United States of America | New Iberia |
| 55 | Baker Lyman & Co Inc | Marine Equipment | United States of America | Metairie |
| 56 | Graco Inc | Marine Equipment | United States of America | Minneapolis |
| 57 | Blume Worldwide Services | Marine Equipment | United States of America | Scarsdale |
| 58 | Clampco Products Inc. | Marine Equipment | United States of America | Wadsworth |
| 59 | Henry Co - Diplomatic Marine | Marine Equipment | United States of America | Houston |
| 60 | Kiene Diesel Accessories Inc | Marine Equipment | United States of America | Addison |
| 61 | Holland America Line | Owner, Manager | United States of America | Seattle |
| 62 | Fairfield-Maxwell Services | Owner, Manager | United States of America | Roseland |
| 63 | Delta Queen Steamboat Co Inc | Owner, Manager | United States of America | New Orleans |
| 64 | Channellock Inc | Marine Equipment | United States of America | Meadville |
| 65 | Evac North America Inc | Marine Equipment | United States of America | Machesney Park |
| 66 | Ederer Inc | Marine Equipment | United States of America | Seattle |
| 67 | Bosch Rexroth Corp | Marine Equipment | United States of America | Lexington |
| 68 | Chemetron Fire Systems | Marine Equipment | United States of America | Matteson |
| 69 | San Pedro Harbor Ship Supply | Marine Equipment | United States of America | San Pedro |
| 70 | Parker Systems Inc (PSI) | Marine Equipment | United States of America | Chesapeake |
| 71 | Parmatic Filter Corp | Marine Equipment | United States of America | Branchville |
| 72 | Soundown Corp | Marine Equipment | United States of America | Salem |
| 73 | Patterson-Kelley | Marine Equipment | United States of America | East Stroudsburg |
| 74 | Baier Hatch Co Inc | Marine Equipment | United States of America | Woodinville |
| 75 | Space Machine & Engineering CP | Marine Equipment | United States of America | St Petersburg |
| 76 | Harco Manufacturing Co | Marine Equipment | United States of America | Newberg |
| 77 | Victaulic Co of America | Marine Equipment | United States of America | Easton |
| 78 | Micrologic | Marine Equipment | United States of America | Buckhannon |
| 79 | Veson Nautical Corp | Marine Equipment | United States of America | Boston |
| 80 | Ernst & Co Inc,John C | Marine Equipment | United States of America | Sparta |
| 81 | Freeman Marine Equipment Inc | Marine Equipment | United States of America | Gold Beach |
| 82 | Horsburgh & Scott | Marine Equipment | United States of America | Cleveland |
| 83 | King Engineering Corp | Marine Equipment | United States of America | Ann Arbor |
| 84 | Young Windows Inc | Marine Equipment | United States of America | Conshohocken |
| 85 | Thern Inc | Marine Equipment | United States of America | Winona |
| 86 | Bardex Corporation | Marine Equipment | United States of America | Goleta |
| 87 | FAST Systems | Marine Equipment | United States of America | Sunset Hills |
| 88 | Pacer Pumps | Marine Equipment | United States of America | Lancaster |
| 89 | Clemco Industries Corp | Marine Equipment | United States of America | Washington |
| 90 | Penberthy Inc | Marine Equipment | United States of America | Prophetstown |
| 91 | Buell Manufacturing Co | Marine Equipment | United States of America | Lyons |
| 92 | Klein Tools Inc | Marine Equipment | United States of America | Skokie |
| 93 | Crossfield Products Corp | Marine Equipment | United States of America | Roselle Park |
| 94 | Acorn Iron & Supply Co | Marine Equipment | United States of America | Philadelphia |
| 95 | Cotta Transmission Co | Marine Equipment | United States of America | Beloit |
| 96 | Coast Marine & Ind Supply | Marine Equipment | United States of America | San Francisco |
| 97 | CLS America Inc | Marine Equipment | United States of America | Largo |
| 98 | Schutte & Koerting | Marine Equipment | United States of America | Trevose |
| 99 | Sealand Technology Inc | Marine Equipment | United States of America | Big Prairie |
| 100 | Wabash Power Equipment Co | Marine Equipment | United States of America | Wheeling |
| 101 | Penn-Troy Machine Co | Marine Equipment | United States of America | Troy |
| 102 | Ellicott | Marine Equipment | United States of America | Baltimore |
| 103 | Mackay Marine - Edison | Marine Equipment | United States of America | Edison |
| 104 | Grove Worldwide | Marine Equipment | United States of America | Shady Grove |
| 105 | Zippertubing Co | Marine Equipment | United States of America | Los Angeles |
| 106 | Perko Inc | Marine Equipment | United States of America | Miami |
| 107 | American Tool Companies Inc. | Marine Equipment | United States of America | Huntersville |
| 108 | Stearns Inc | Marine Equipment | United States of America | St Cloud |
| 109 | AL Don Co | Marine Equipment | United States of America | Matawan |
| 110 | Empire Abrasive Equipment Co | Marine Equipment | United States of America | Langhorne |
| 111 | Oil-Rite Corp | Marine Equipment | United States of America | Manitowoc |
| 112 | Aisco | Marine Equipment | United States of America | Edison |
| 113 | Radar-Digital Systems Inc | Marine Equipment | United States of America | Santa Cruz |
| 114 | Broco Inc | Marine Equipment | United States of America | Rancho Cucamonga |
| 115 | Tools For Bending Inc | Marine Equipment | United States of America | Denver |
| 116 | Braden Carco Gearmatic | Marine Equipment | United States of America | Broken Arrow |
| 117 | Endeco/Ysi Inc | Marine Equipment | United States of America | Marion |
| 118 | Lubriplate Lubricants-Fiske | Marine Equipment | United States of America | Newark |
| 119 | Marco Global | Marine Equipment | United States of America | Seattle |
| 120 | Seco/Warwick Corp | Marine Equipment | United States of America | Meadville |
| 121 | Bromma Inc (Roxboro) | Marine Equipment | United States of America | Durham |
| 122 | Research Tool & Die Works | Marine Equipment | United States of America | Carson |
| 123 | Bayleysuit | Marine Equipment | United States of America | Hydesville |
| 124 | Gyro Chemical & Equipment Co | Marine Equipment | United States of America | Deer Park |
| 125 | Warren-Knight Instrument Co | Marine Equipment | United States of America | Philadelphia |
| 126 | Peck & Hale LLC | Marine Equipment | United States of America | Long Island |
| 127 | KVH Industries Inc | Marine Equipment | United States of America | Middletown |
| 128 | Grimmer Industries | Marine Equipment | United States of America | Franklin |
| 129 | ITW Philadelphia Resins Corp | Marine Equipment | United States of America | Montgomeryville |
| 130 | Sen-Dure Products Inc | Marine Equipment | United States of America | Fort Lauderdale |
| 131 | CPV Manufacturing Inc | Marine Equipment | United States of America | Philadelphia |
| 132 | Butterworth Systems Inc | Marine Equipment | United States of America | Houston |
| 133 | Insinger Machine Co | Marine Equipment | United States of America | Philadelphia |
| 134 | Octel Marine & Power | Marine Equipment | United States of America | Bellevue |
| 135 | Win-Chekd Inc | Marine Equipment | United States of America | Waco |
| 136 | SPI/Mobile Pulley Works Inc | Marine Equipment | United States of America | Mobile |
| 137 | MP Pumps Inc | Marine Equipment | United States of America | Fraser |
| 138 | Tideland Signal Corp | Marine Equipment | United States of America | Houston |
| 139 | Pioneer Motor Bearing Co | Marine Equipment | United States of America | Burlingame |
| 140 | Operating & Maintenance Spec | Marine Equipment | United States of America | Monroe |
| 141 | Aqua-Chem Inc Water Tech Div | Marine Equipment | United States of America | Knoxville |
| 142 | Carrier Transicold - USA | Marine Equipment | United States of America | Syracuse |
| 143 | Seaworthy Systems Inc | Consultants, Surveyors | United States of America | Essex |
| 144 | FIC Corp | Marine Equipment | United States of America | Rockville |
| 145 | Hubbell Electric Heater Co | Marine Equipment | United States of America | Stratford |
| 146 | Beaird Industries Inc | Marine Equipment | United States of America | Shreveport |
| 147 | Hyster Co | Marine Equipment | United States of America | Danville |
| 148 | Eaton Corp Airflex Division | Marine Equipment | United States of America | Cleveland |
| 149 | Hankison International | Marine Equipment | United States of America | Canonsburg |
| 150 | Metrix Instrument Co | Marine Equipment | United States of America | Houston |
| 151 | Ritchie E S & Sons Inc | Marine Equipment | United States of America | Pembroke |
| 152 | Phoenix Products Co Inc | Marine Equipment | United States of America | Milwaukee |
| 153 | Kahn Companies, The | Marine Equipment | United States of America | Wethersfield |
| 154 | Aeroquip Corp | Marine Equipment | United States of America | Maumee |
| 155 | Innerspace Technology Inc | Marine Equipment | United States of America | Carlstadt |
| 156 | Clark Co Inc, David | Marine Equipment | United States of America | Worcester |
| 157 | Sunroc Corp | Marine Equipment | United States of America | Columbus |
| 158 | Draka Cableteq USA | Marine Equipment | United States of America | North Dighton |
| 159 | MPRI Ship Analytics Inc | Other | United States of America | Salt Lake City |
| 160 | Si-Tex Marine Electronics Inc | Marine Equipment | United States of America | St Petersburg |
| 161 | General Wire Spring Co | Marine Equipment | United States of America | McKees Rocks |
| 162 | Box Inc, J | Marine Equipment | United States of America | Marrero |
| 163 | Leistritz Corp | Marine Equipment | United States of America | Allendale |
| 164 | Esmet Inc | Marine Equipment | United States of America | Canton |
| 165 | Dayco Products Inc | Marine Equipment | United States of America | Miamisburg |
| 166 | Powers Process Controls | Marine Equipment | United States of America | Buffalo Grove |
| 167 | Weigh-Tronix Inc | Marine Equipment | United States of America | Fairmont |
| 168 | Rice Electronics LP - Houston | Marine Equipment | United States of America | Houston |
| 169 | Atkinson Dynamics | Marine Equipment | United States of America | University Park |
| 170 | Swagelok Co | Marine Equipment | United States of America | Solon |
| 171 | Cook Composites & Polymer | Marine Equipment | United States of America | Kansas City |
| 172 | Labour Pumps | Marine Equipment | United States of America | Indianapolis |
| 173 | Atlantic Cordage Corp | Marine Equipment | United States of America | Avenel |
| 174 | Samtan Engineering Corp. | Marine Equipment | United States of America | Malden |
| 175 | Cooper Air Tools | Marine Equipment | United States of America | Lexington |
| 176 | Sioux Steam Cleaner Corp | Marine Equipment | United States of America | Beresford |
| 177 | Sperry Marine - Virginia | Marine Equipment | United States of America | Charlottesville |
| 178 | Syntechnics Inc | Marine Equipment | United States of America | Paducah |
| 179 | Maritime Power Corp | Marine Equipment | United States of America | Jersey City |
| 180 | WMH Tool Group Inc | Marine Equipment | United States of America | Elgin |
| 181 | Hempel (USA) Inc | Marine Equipment | United States of America | Conroe |
| 182 | Powerbrace America | Marine Equipment | United States of America | Kenosha |
| 183 | White, S S Technologies | Marine Equipment | United States of America | Piscataway |
| 184 | Marathon Electric Mfg | Marine Equipment | United States of America | Wausau |
| 185 | Coppus Portable Ventilation | Marine Equipment | United States of America | Worcester |
| 186 | McElroy Machine & Mfg Co Inc | Marine Equipment | United States of America | Tulsa |
| 187 | Neuhaus LP, J D | Marine Equipment | United States of America | Sparks |
| 188 | CAT PUMPS | Marine Equipment | United States of America | Minneapolis |
| 189 | Slickbar Products Corp | Marine Equipment | United States of America | Seymour |
| 190 | Centerline Power Inc | Marine Equipment | United States of America | Longmont |
| 191 | Coupling Corporation America | Marine Equipment | United States of America | York |
| 192 | Taylor Tools | Marine Equipment | United States of America | Oklahoma City |
| 193 | Servomex Inc | Marine Equipment | United States of America | Sugar Land |
| 194 | Northrop Grumman Corp | Marine Equipment | United States of America | New Orleans |
| 195 | Newmar | Marine Equipment | United States of America | Newport |
| 196 | Taylortec Inc | Marine Equipment | United States of America | Hammond |
| 197 | Bug-O Systems International | Marine Equipment | United States of America | Pittsburgh |
| 198 | Electric Techometer Corp | Marine Equipment | United States of America | Sodus |
| 199 | Juniper Industries Inc | Marine Equipment | United States of America | Middle Village |
| 200 | Lake Carriers' Assoc | Maritime Organisation | United States of America | Cleveland |