| Ship Name | Operator | Length | Country |
| A.E.Verril | Dauphin Island Sea Lab (DISL) | 20 m | USA |
| Aade | Reederei F. Laeisz (Bremerhaven) GmbH | 12 m | Germany |
| Abate Molina | Instituto De Formento Pesquero - Ifop | 44 m | Chile |
| Academic Alexander Nesmeyanov | Department of Marine Research Fleet (DMRF) | 111 m | Russia |
| Academik M. A. Lavrentiev | Department of Marine Research Fleet | 76 m | Russia |
| Acadiana | Louisiana University Marine Consortium | 20 m | USA |
| Adjaria | Dept. of Navigation and Oceanography | 124 m | Russia |
| Aegaeo | Greek NCMR | 62 m | Greece |
| Africana | Marine and Coastal Management | 78 m | South Africa |
| Agassiz | Michigan Technological University | 11 m | USA |
| Águas Vivas | Department of Oceanography and Fisheries of the University of the Azores (DOP/UAç) | 11 m | Portugal |
| Agulhas | Marine and Coastal Management | 112 m | South Africa |
| Akademic | Institute of Oceanology | 56 m | Bulgaria |
| Akademik Alexander Vinogradov | Department of Marine Research Fleet (DMRF) | 110 m | Russia |
| Akademik Boris Petrov | SCS Shipping Consulting & Service GmbH | 76 m | Russia |
| Akademik Fedorov | SCS Shipping Consulting & Service GmbH | 141 m | Russia |
| Akademik Golitsyn | SCS Shipping Consulting & Service GmbH | 72 m | Russia |
| Akademik Ioffe | SCS Shipping Consulting & Service GmbH | 117 m | Russia |
| Akademik Korolev | Far East Hydrometeorological Institute | 124 m | Russia |
| Akademik Kurchatov | P.P. Shirshov Institute of Oceanology | 124 m | Russia |
| Akademik Mstislav Keldysh | P.P. Shirshov Institute of Oceanology | 122 m | Russia |
| Akademik Nikolaj Strakhov | Geological Institute | 76 m | Russia |
| Akademik Oparin | Department of Marine Research Fleet (DMRF) | 76 m | Russia |
| Akademik Sergey Vavilov | P.P. Shirshov Institute of Oceanology | 117 m | Russia |
| Akademik Shirshov | Far Eastern Hydrometeorological Institute | 124 m | Russia |
| Akademik Shokalsky | Far Eastern Hydrometeorological Institute | 72 m | Russia |
| Akademik Shuleikin | The Arctic and Antarctic Research Institute | 72 m | Russia |
| Akademik Vernadsky | Marine Hydrophysical Institute | 124 m | Ukraine |
| Alaska Region Research Vessel (ARRV) | Institute of Marine Science | 72 m | USA |
| Albatross IV | Office of Marine and Aviation Operations (OMAO) | 57 m | USA |
| Aldebaran | Direccion General De Oceanografica Naval | 56 m | Mexico |
| Alfred Needler (CCGS) | Bedford Institute of Oceanography (BIO) | 50 m | Canada |
| Algoa | Marine and Coastal Management | 53 m | South Africa |
| Alguita | ORV Alguita, Inc. | 15 m | USA |
| Alis | Centre IRD de Bretagne | 28 m | France |
| Alkor | IFM-GEOMAR, Kiel, Germany | 55 m | Germany |
| Alliance | NATO SACLANT Undersea Research Centre | 93 m | NATO |
| Alpha Helix | University of Alaska, Fairbanks | 41 m | USA |
| Altair | Secretaria De Marina | 63 m | Mexico |
| Alvin (DSV) | Woods Hole Oceanographic Institution | 7 m | USA |
| Amethist | Department of Marine Research Fleet (DMRF) | 34 m | Russia |
| Amundsen (CCGS) | Fisheries and Oceans Canada (DFO) | 98 m | Canada |
| Ancylus | National Board of Fisheries | 24 m | Sweden |
| Andrea | Laboratorio di Biologia Marina e Pesca | 29 m | Italy |
| Annika Marie | Oceanic Research Services, Inc. | 13 m | USA |
| Anova | Shannon Point Marine Center | 9 m | USA |
| Antares | Direccion General De Oceanografia Naval | 64 m | Mexico |
| Antedon II | Institut Nacional de Sciences de L´Univers (INSU - CNRS) | 16 m | France |
| Anticosti | Starline, Inc | 54 m | Canada |
| Antonija | Institute of Aquatic Ecology, University of Latvia | 22 m | Latvia |
| Aomori Maru | Hachinobe Fisheries High School | 58 m | Japan |
| Aora | University Marine Biological Station, Millport (UMBSM) | 22 m | UK |
| Aplysia | University Marine Biological Station, Millport (UMBSM) | 11 m | UK |
| Aqualab | Toronto and Region Conservation Authority | 9 m | Canada |
| Aquarius (DOV) | Nuytco Research Ltd. | 4 m | Canada |
| Aquarius (GLCBSC) | Great Lakes Center Buffalo State College | 12 m | USA |
| Aquarius (UM) | University of Maryland | 20 m | USA |
| Arabella | Inst. of Marine and Coastal Sciences | 15 m | USA |
| Aranda | Finnish Institute of Marine Research (FIMR) | 60 m | Finland |
| Arar | Institute of Marine Sciences and Management | 31 m | Turkey |
| Arar 1 | Institute of Marine Sciences and Management | 16 m | Turkey |
| Arc Malpelo | Dimar - Armada Nacional | 51 m | Columbia |
| Arc Providencia | Comunidad Cientifico Nacional Colombiana | 50 m | Columbia |
| Arca | Netherlands Ministry of Transport, Public Works and Water Management, North Sea Directorate | 83 m | Netherlands |
| Argo | New York State DEC | 13 m | USA |
| Argo II (ROV) | Woods Hole Oceanographic Institution (WHOI) | 5 m | USA |
| Argos | Swedish National Board of Fisheries | 61 m | Sweden |
| Argus | Meetinformatiedienst Zeeland | 33 m | Netherlands |
| Arktika | Murmansk Shipping Co. | 148 m | Russia |
| Arne Tiselius | Kristineberg Marine Research Station (KMRS) | 31 m | Sweden |
| Arni Fridriksson | Marine Research Institute, Reykjavik, Iceland | 70 m | Iceland |
| Arquipelago | Department of Oceanography and Fisheries of the University of the Azores (DOP/UAç) | 25 m | Portugal |
| Ashu Maru | Tokushima Prefectual Fisheries Experimental Station | 52 m | Japan |
| Astrea | ICRAM | 24 m | Italy |
| Atair | Federal Ministry of Transport, Building and Housing | 51 m | Germany |
| Atigamayg | Lake Huron Fisheries Research Unit, OMNR | 17 m | Canada |
| Atlantic Explorer | Bermuda Biological Station for Research | 51 m | Bermuda |
| Atlantida | Zaprybpromrazvedka | 62 m | Russia |
| Atlantis | Woods Hole Oceanographic Institution (WHOI) | 84 m | USA |
| Atlantniro | Zaprybpromrazvedka | 62 m | Russia |
| Atyimba | Coast & Geodetic Survey Dept. | 49 m | Philippines |
| Aurelia | Stockholm Marine Research Centre, Askö Laboratory | 17 m | Sweden |
| Aurora Australis | P&O Polar Australia Pty Ltd | 95 m | Australia |
| Baltica | Sea Fisheries Institute (MIR) | 41 m | Poland |
| Barney Devine | Wisconsin Department of Natural Resources | 16 m | USA |
| Baruna Jaya III | UPT BARUNA JAYA - BPPT | 60 m | Indonesia |
| Basatt | Department of Marine Research Fleet | 34 m | Russia |
| Bay Eagle | Virginia Inst. of Marine Science | 20 m | USA |
| Behr Paima | Hydrographic Dept. | 61 m | Pakistan |
| Bei Dou | Yellow Sea Fisheries Research Institute (Ysfri) | 56 m | China |
| Belgica | Management Unit of the North Sea Mathematical Model | 51 m | Belgium |
| Bellows | Florida Institute of Oceanography | 25 m | USA |
| Berill | Department of Marine Research Fleet (DMRF) | 34 m | Russia |
| Bernicia | School of Marine Science and Technology | 16 m | UK |
| Bien Dong | Institute of Marine Products Research | 48 m | Vietnam |
| Bilim | Institute of Marine Sciences | 40 m | Turkey |
| Bill Conway | School of Ocean & Earth Science | 12 m | UK |
| Bin Hai 512 | DWS International Inc | 81 m | Panama |
| Biolab | OSU, FT Stone Laboratory | 1137 m | USA |
| Bios | Institute of Oceanography and Fisheries | 28 m | Croatia |
| Bjarni Saemundsson | Marine Research Institute | 56 m | Iceland |
| Bjorn Foyn | Faculty of Mathematics and Natural Sciences | 12 m | Norway |
| Blue Heron | Large Lakes Observatory | 26 m | USA |
| Boreus | Department of Marine Research Fleet (DMRF) | 34 m | Russia |
| Bowditch (USNS) | Military Sealift Command Pacific | 100 m | USA |
| Brig | Department of Marine Research Fleet (DMRF) | 34 m | Russia |
| Bruce C. Heezen (USNS) | Military Sealift Command Atlantic | 100 m | USA |
| C.E. Miller | University of Washington Applied Physics Laboratory | 15 m | USA |
| Calanus | Stafford Morrison | 23 m | USA |
| Calanus - UK | Dunstaffnage Marine Laboratory (DML) | 20 m | UK |
| Calanus II (CCGS) | Fisheries and Oceans Canada | 20 m | Canada |
| Caleta | Institute of Marine and Coastal Sciences | 9 m | USA |
| Callista | National Oceanography Centre, University of Southampton | 20 m | UK |
| Cape Fear | University of North Carolina at Wilmington | 21 m | USA |
| Cape Hatteras | Duke/UNC Oceanographic Consortium | 41 m | USA |
| Cape Pillar | Department of Transport and Communications | 73 m | Australia |
| Capella | Federal Ministry of Transport, Building and Housing | 43 m | Germany |
| Capitan Oca Balda | Inidep Playa Grande | 65 m | Argentina |
| Capitan Oleynichuk | Turnif | 114 m | Russia |
| Capricorn | University of North Carolina Chapel Hill Institute of Marine Sciences | 15 m | USA |
| Capricornio | Instituto Português de Investigação das Pescas e do Mar - IPIMAR | 47 m | Portugal |
| Caribou Isle (CCGS) | Canadian Coast Guard | 22 m | Canada |
| CEFAS Endeavour | Centre for Environment, Fisheries and Aquaculture Science (CEFAS) | 73 m | UK |
| Celtic Explorer | Marine Institute / Ocean Science Services | 66 m | Ireland |
| Celtic Voyager | Marine Institute / Ocean Science Services | 31 m | Ireland |
| Centennial | University of Washington, Friday Harbor Laboratories | 18 m | USA |
| Centennial 92 | Ontario Ministry of Natural Resources | 9 m | Canada |
| Cesme | Department of the Hydrography, Oceanography and Navigation | 87 m | Turkey |
| Challenger | Marine Science Program, University of Connecticut | 8 m | USA |
| Channel Cat | Michigan Dept. of Natural Resources | 14 m | USA |
| Chiba Maru | Ahio Harada | 51 m | Japan |
| Chikyu | Global Ocean Develoment Inc. (GODI) | 210 m | Japan |
| Chinook | Michigan Dept. of Natural Resources | 15 m | USA |
| Chishio Maru | Chiba-Ken Kyoiku Iinkai | 49 m | Japan |
| Chofu Maru | Nagasaki Marine Observatory | 56 m | Japan |
| Chosui Maru | Nagasaki Fisheries High School (NFHS) | 50 m | Japan |
| Chulabhorn | Exploratory Fisheries Division (EFD) | 67 m | Thailand |
| Chun Nam 402 | Yo-su National Fisheries College | 43 m | Korea |
| Clelia | Harbor Branch Oceanographic Institution Marine Operations | 7 m | USA |
| Clifford A. Barnes | School of Oceanography, University of Washington | 20 m | USA |
| Clupea | FRS Marine Laboratory | 32 m | UK |
| Clupea (Germany) | Federal Agency of Agriculture and Food, Hamburg | 18 m | Germany |
| Coastal Guardian | Environment Agency, National Marine Service | 16 m | UK |
| Coastal II | Coastal Carolina University Center for Marine and Wetland Studies | 13 m | USA |
| Coastal Surveyor | University of New Hampshire Marine Program | 12 m | USA |
| Colonel Templer | MoD, Defence Evaluation and Research Agency, Farnborough | 57 m | UK |
| Connecticut | University of Connecticut | 23 m | USA |
| Coral Sea | Humboldt State University Marine Lab | 27 m | USA |
| Coriollis II | REFORMAR | 50 m | Canada |
| Cornide de Saavedra | Instituto Espanol de Oceanografia (IEO) | 67 m | Spain |
| Corwith Cramer | Sea Education Association | 41 m | USA |
| Corystes | Agri-Food and Biosciences Institute | 52 m | UK |
| Côte d´Aquitaine | Institut Nacional de Sciences de l'Univers (INSU - CNRS) | 19 m | France |
| Côtes de la Manche | Institut Nacional de Sciences de l'Univers (INSU - CNRS) | 25 m | France |
| Cove Isle (CCGS) | Canadian Coast Guard Base Parry Sound | 20 m | Canada |
| Cubuklu | Department of the Hydrography, Oceanography and Navigation | 40 m | Turkey |
| D. J. Angus | GVSU Annis Water Resources Institute | 14 m | USA |
| Dallaporta | ISMAR-CNR Sezione Pesca Marittima | 35 m | Italy |
| Dan Moore | Cape Fear Community College | 26 m | USA |
| Dana | DFU | 78 m | Denmark |
| Darius | Fishery Research Laboratory | 23 m | Lithuania |
| David Starr Jordan | NOAA, Pacific Marine Center | 52 m | USA |
| Deep Flyer (DOV) | Nuytco Research Ltd. | 2 m | Canada |
| Deep Rover (DOV) | Nuytco Research Ltd. | 2 m | Canada |
| Deepworker (DOV) | Nuytco Research Ltd. | 2 m | Canada |
| Delaware II | NOAA Marine and Aviation Operations | 47 m | USA |
| Delphinus | Florida Institute of Technology, Melbourne | 18 m | USA |
| Delta | Meetinformatiedienst Zeeland | 42 m | Netherlands |
| Delta (UVMS) | Delta Oceanographics | 5 m | USA |
| Deneb | Federal Ministry of Transport, Building and Housing | 52 m | Germany |
| Derek M. Baylis | SeaLife Conservation | 19 m | USA |
| Diablo | Diablo Charters | 10 m | UK |
| Discovery | NERC Research Ship Unit | 90 m | UK |
| Dmitry Mendeleev | P.P. Shirshov Institute of Oceanology | 124 m | Russia |
| Dmitry Stefanov | Yugniro | 62 m | Ukraine |
| Doktor Lubecki | Maritime Institute | 23 m | Poland |
| Dolphin (USS) | Naval Sea Systems Command | 50 m | USA |
| Donald W. Pritchard | Marine Sciences Research Center | 8 m | USA |
| Dong Fang Hong 2 | Oceanic Research Centre, Ocean University of QingDao | 96 m | China |
| Dorothy J. | Ontario Ministry of Natural Resources | 12 m | Canada |
| Dr. Eduardo Holmberg | Inidep Playa Grande | 62 m | Argentina |
| Dr. Fridtjof Nansen | Institute of Marine Research (IMR) | 57 m | Norway |
| Drofn | Marine Research Institute, Reykjavik, Iceland | 26 m | Iceland |
| DSL-120A (ROV) | Woods Hole Oceanographic Institution (WHOI) | 3 m | USA |
| Eardo | Korean Ocean Research and Development Institute (KORDI) | 49 m | Korea |
| Echo (HMS) | Vosper Thornycroft (UK) Ltd (VT) | 91 m | UK |
| Eeva | Ecometria | 36 m | Spain |
| El Austral | Conicet | 44 m | Argentina |
| El Puma | Coordinacion de Plataformas Oceanograficas | 50 m | Mexico |
| Elakha | Oregon State University | 16 m | USA |
| Endeavor | University of Rhode Island Graduate School of Oceanography | 56 m | USA |
| Endurance (HMS) | Hydrographic Surveying Squadron, MoD | 91 m | UK |
| Enterprise (HMS) | Vosper Thornycroft (UK) Ltd (VT) | 91 m | UK |
| ERDA-1 | Argonne National Laboratory | 7 m | USA |
| Erdemli | Institute of Marine Sciences | 17 m | Turkey |
| Erie Explorer | Ontario Ministry of Natural Resources | 19 m | Canada |
| Erline | Naval Underwater Sys. Ctr | 32 m | USA |
| Ernest Shackleton | NERC, British Antarctic Survey | 80 m | UK |
| Everett H | Ontario Ministry of Natural Resources - Lake Superior Management Unit | 19 m | Canada |
| Explora | Istituto Nazionale di Oceanografia e di Geofisica Sperimentale – OGS | 73 m | Italy |
| Explorer | Mines and Geosciences Bureau | 55 m | Philippines |
| Explorer of the Seas | Royal Caribbean Cruise Lines | 311 m | Bahamas |
| F.C.G. Smith (CCGS) | Fisheries and Oceans Canada | 35 m | Canada |
| Fairweather | NOAA Marine and Aviation Operations | 70 m | USA |
| Fangst | Institute of Marine Research (IMR) | 15 m | Norway |
| Fauna | Shannon Point Marine Center | 7 m | USA |
| Fay Slover | Old Dominion University Center for Coastal Physical Oceanography | 17 m | USA |
| Fish Hawk | owner | 9 m | USA |
| Flip (FLoating Platform) | Scripps Institution of Oceanography, Marine Physical Laboratory (UCSD) | 108 m | USA |
| Flora | Shannon Point Marine Center | 6 m | USA |
| Forerunner | Clatsop Community College | 15 m | USA |
| Four Winds | University of Hawaii at Hilo Kalakaua Marine Education Center | 16 m | USA |
| Francisco de Paula Navarro | Instituto Espanõl Oceanografia (IOE) | 30 m | Spain |
| Frederick G. Creed (CCGS) | Fisheries and Oceans Canada | 20 m | Canada |
| Fuji Maru | Shizuoka Prefectural Fisheries Experimental Station | 51 m | Japan |
| Fukushima Maru | Onohama Fisheries High School | 55 m | Japan |
| Furetto | IAMC-CNR, section of Istituto Sperimentale Talassografico, Consiglio Nazionale delle Ricerche (CNR) | 10 m | Italy |
| G. M. Dannevig | Institute of Marine Research (IMR) | 28 m | Norway |
| G. O. Sars | Institute of Marine Research | 78 m | Norway |
| Gal Mae Gi | Korea Fishing Training Centre | 52 m | Korea |
| Gal Mae Gi No. 2 | Korea Fishing Training Centre | 52 m | Korea |
| Garcia del Cid | UTM. CMIMA (Centro Mediterráneo de Investigaciones Medio-Ambientales) | 37 m | Spain |
| Gauss | Federal Ministry of Transport, Building and Housing | 69 m | Germany |
| GC-03 (CCGS) | Fisheries and Oceans Canada | 18 m | Canada |
| Gelendzhik | CGGE International | 104 m | Russia |
| Genetica II | Department of Marine Ecology, Institute of Biological Sciences | 15 m | Denmark |
| Geofizik | SCS Shipping Consulting & Service GmbH | 56 m | Russia |
| Geolog Dmitriy Nalivkin | SCS Shipping Consulting & Service GmbH | 72 m | Russia |
| Geomari | Geological Survey of Finland (GTK) | 20 m | Finland |
| Georgia Bulldog | The University of Georgia Marine Extension Service | 22 m | USA |
| Gidronavt | Underwater Scientific Research Center | 54 m | Ukraine |
| Gintaras | Center of Marine Research | 21 m | Lithuania |
| Gleaner | MoD, Hydrographic Surveying Squadron | 49 m | UK |
| Gordon Gunter | Office of Marine and Aviation Operations (OMAO) | 68 m | USA |
| Grandon | Ohio Department of Natural Resources | 14 m | USA |
| Greyling | USGS Great Lakes Science Center | 23 m | USA |
| GS-1 | Division of Geological Survey | 15 m | USA |
| GS-3 | Division of Geological Survey | 8 m | USA |
| Guardian II | Ontario Ministry of Environment and Natural Resources | 20 m | Canada |
| Guilan | Guilan Fisheries Research Centre | 54 m | Iran |
| Gulf Challenger | Jackson Estuarine Laboratory, University of New Hampshire | 15 m | USA |
| Gull Isle (CCGS) | Coast Guard Base Amherstburg | 20 m | Canada |
| Gunnar Thorson | National Environmental Research Institute, | 56 m | Denmark |
| Gwen Drez | Genavir | 24 m | France |
| Gydrobiolog | Underwater Scientific Research Center | 53 m | Ukraine |
| Hack Noyes | Fisheries Services, Maryland Department of Natural Resources | 17 m | USA |
| Haendel | Cayuga Wooden Boat Works | 14 m | USA |
| Hakon Mosby | Geophysical Institute of the University of Bergen and Institute of Marine Research (IMR) | 47 m | Norway |
| Hakuho Maru | Ocean Research Institute, University of Tokyo | 100 m | Japan |
| Hakusan Maru | Ishikawa Prefectual Fisheries Experimental Station | 41 m | Japan |
| Hamashio | 3rd Regional Coast Guard Headquarters | 21 m | Japan |
| Hans Brattstrom | Department of Fisheries and Marine Biology of the University of Bergen and Institute of Marine Research (IMR) | 24 m | Norway |
| Harry Borthen I | Norwegian University of Science and Technology (NTNU) | 20 m | Norway |
| Hayashio | 7th Regional Coast Guard Headquarters | 21 m | Japan |
| Hayes (USNS) | Military Sealift Command | 75 m | USA |
| Healy | U.S. Coast Guard | 128 m | USA |
| Heincke | RF Reedereigemeinschaft Forschungsschiffahrt GmbH, Bremen | 55 m | Germany |
| Henry M. Stommel | Bermuda Biological Station for Research | 12 m | USA |
| Henson (USNS) | Military Sealift Command Atlantic | 100 m | USA |
| Hermes | University of Southern Mississippi Gulf Coast Research Laboratory | 12 m | USA |
| Hesperides | Ministry for Science and Technology | 82 m | Spain |
| Hidra | Hydrographic Institute of the Republic of Croatia | 22 m | Croatia |
| Hi'Ialakai | NOAA, Marine Operations Center, Pacific | 68 m | USA |
| Hokko Maru | Hokkaido National Fisheries Research Institute (HNF) | 50 m | Japan |
| Hokusei Maru | Faculty of Fisheries, Hokkaido University | 62 m | Japan |
| Hr. Ms. Buyskes | Hydrographic Services of the Royal Netherlands Navy | 60 m | Netherlands |
| Hudson (CCGS) | Bedford Institute of Oceanography (BIO) | 90 m | Canada |
| Hugh R. Sharp | University of Delaware College of Marine Studies | 44 m | USA |
| Humboldt | Instituto del Mar del Peru (IMARPE) | 76 m | Germany |
| Humboldt | Instituto del Mar del Peru (IMARPE) | 76 m | Peru |
| Hyas | The Norwegian College of Fishery Science/The University of Tromsö | 12 m | Norway |
| Hydronaut | Department of Marine Research Fleet (DMRF) | 41 m | Russia |
| Hyper-Dolphin (ROV) | Nippon Marine Enterprises, Ltd. | 3 m | Japan |
| Ikhtiandr | Underwater Scientific Research Center | 84 m | Ukraine |
| Imor | Maritime Institute, Gdansk | 32 m | Poland |
| Independence | Mar Inc, Rockville, MD | 61 m | USA |
| Inland Seas | Inland Seas Education Association | 24 m | USA |
| Ira C | Ira C. Darling Marine Center for Research, University of Maine | 13 m | USA |
| Iseshio | 4th Regional Coast Guard Headquarters | 21 m | Japan |
| Isis | Ministry of Agriculture, Nature and Food Quality | 28 m | Netherlands |
| Isla Magueyes | Dept. of Marine Sciences | 22 m | USA |
| Isoshio | 10th Regional Coast Guard Headquarters | 21 m | Japan |
| Istros | National Institute of Marine Geology and Geoecology - GeoEcoMar | 32 m | Romania |
| Ivan Kruzenshtern | Dept. of Navigation and Oceanography (HDNO) | 147 m | Russia |
| J. L. Hart (CCGS) | Fisheries and Oceans Canada Communications Branch | 20 m | Canada |
| J. W. Powell | Texas A&M Research Foundation (GERG) | 43 m | USA |
| J.E. Henderson | University of Washington Applied Physics Laboratory | 21 m | USA |
| J.H. Martin | MLML Small Boat/Diving Operations | 17 m | USA |
| James Auld | Ontario Ministry of Natural Resources | 14 m | Canada |
| James Clark Ross | British Antarctic Survey | 99 m | UK |
| James Cook | NO LONGER IN SERVICE, was: Ministry of Agriculture & Fisheries | 42 m | New Zealand |
| JAMSTEC/ Deep Tow (4 KC/ 6 KC/ 4 KS) | (JAMSTEC) Mutsu Institute for Oceanography | 4 m | Japan |
| Jan Mayen | Univeristy of Tromso/Norwegian College of Fisheries Science | 64 m | Norway |
| Jason II/ Medea (ROV) | Woods Hole Oceanographic Institution (WHOI) | 3 m | USA |
| Ji Di | North China Sea Branch, SOA | 152 m | China |
| Jin Dal Le | Korea Fishing Training Centre | 44 m | Korea |
| Johan Hjort | Institute of Marine Research (IMR) | 64 m | Norway |
| Johan Ruud | The Norwegian College of Fishery Science/The University of Tromsö | 30 m | Norway |
| John B. Heiser | Shoals Marine Laboratory | 11 m | USA |
| John H. Martin | Moss Landing Marine Laboratory | 17 m | USA |
| John M. Kingsbury | Shoals Marine Laboratory | 14 m | USA |
| John McDonnell (USNS) | Military Sealift Command Atlantic | 63 m | USA |
| John N. Cobb | Office of Marine and Aviation Operations (OMAO) | 28 m | USA |
| John P. Tully (CCGS) | Fisheries and Oceans Canada | 69 m | Canada |
| Johnson-Sea-Link I (UVMS) | Marine Operations | 8 m | USA |
| JOIDES Resolution | Integrated Ocean Drilling program (IODP) | 143 m | USA |
| José Mª Navaz | Instituto Espanõl Oceanografia (IOE) | 16 m | Spain |
| José Rioja | Instituto Español de Oceanografia (IOE) | 16 m | Spain |
| Joseph Leidy | ANS / Est. Res. Cntr. | 13 m | USA |
| Judy | Mich Dept. of Natural Resources (DNR) | 12 m | USA |
| Juku | Nautical College of Estonian Maritime Academy | 24 m | Estonia |
| Justo Sierra | Coordinacion de Plataformas Oceanograficas | 50 m | Mexico |
| K. H. Loftus | Ontario Ministry of Natural Resources | 13 m | Canada |
| K. Piri Reis | Institute of marine Sciences and Technology (IMST) | 36 m | Turkey |
| Kagoshima Maru | Faculty of Fisheries, Kagoshima University | 69 m | Japan |
| Kaharoa | NIWA Vessel Management Limited | 28 m | New Zealand |
| Kaho | Great Lakes Science Center USGS/BRD | 20 m | USA |
| Kaimikai-o-Kanalao | University of Hawaii | 68 m | USA |
| Ka'Imimoana | Office of Marine and Aviation Operations (OMAO) | 68 m | USA |
| Kairei | Nippon Marine Enterprises, Ltd | 105 m | Japan |
| Kairos | The Kairos Company Ltd. | 37 m | Panama |
| Kaiun Maru | Aomori Fisheries Experimental Station | 45 m | Japan |
| Kaiyo | Hydropraphic and Oceanographic Department, JCG | 60 m | Japan |
| Kaiyo (JAMSTEC) | Nippon Marine Enterprises, Ltd | 62 m | Japan |
| Kaiyo Maru | Fisheries Agency | 93 m | Japan |
| Kakuyo Maru | Nagasaki University | 64 m | Japan |
| Kapitan Danitsyn | Murmansk Shipping Company | 132 m | Russia |
| Karluk | Coastal & Marine Geology Program | 13 m | USA |
| Katran | Department of Marine Research Fleet (DMRF) | 20 m | Russia |
| Katy | University of Texas at Austin Marine Science Institute | 17 m | USA |
| KBV 005 | Kustbevakningen & Umeå Marine Research Centre | 46 m | Sweden |
| Keenosay | Ontario Ministry of Natural Resources | 18 m | Canada |
| Keifu Maru | Kobe Marine Observatory | 81 m | Japan |
| Keiten Maru | University of Kagoshimo | 62 m | Japan |
| Kerhin | Maryland Dept. Natural Resources | 16 m | USA |
| Khronometr | Underwater Scientific Research Center | 82 m | Ukraine |
| Kila | Marine Center, University of Hawaii | 31 m | USA |
| Kilo Moana | University of Hawaii | 57 m | USA |
| Kiyi | Great Lakes Science Center USGS/BRD | 33 m | USA |
| Knorr | Woods Hole Oceanographic Institution (WHOI) | 85 m | USA |
| Kofu Maru | Hakodate Marine Observatory | 56 m | Japan |
| Kolesnikov | Marine Hydrophysical Institute | 64 m | Ukraine |
| Komandor | Turnif | 89 m | Russia |
| Komet | Federal Ministry of Transport, Building and Housing | 64 m | Germany |
| Koyo Maru | Shimonoseki University of Fisheries (SUF) | 81 m | Japan |
| Kraken (ROV) | National Undersea Research Center | 2 m | USA |
| KTU Denar I | Facilty of Marine Sciences | 24 m | Turkey |
| Kurushima | 6th Regional Coast Guard Headquarters | 21 m | Japan |
| L. L. Smith Jr. | University of Wisconsin-Superior Lake Superior Research | 18 m | USA |
| La Curieuse | Institut Polaire Français (IPEV) | 25 m | France |
| Laidly | Cooperative Oxford Laboratory | 17 m | USA |
| Lake Guardian | Great Lakes Nat. Program | 55 m | USA |
| Lamas | Institute of Marine Sciences | 16 m | Turkey |
| Lance | Troms Fylkes Dampskibsselskap | 61 m | Norway |
| Langley | Virginia Inst. of Marine Science | 13 m | USA |
| Larga | Department of Marine Research Fleet (DMRF) | 20 m | Russia |
| L'Astrolabe | Compagnie Morbihannaise de Navigation | 65 m | France |
| L'Atalante | Genavir | 85 m | France |
| Laurence M. Gould | Raytheon Polar Services Company | 70 m | USA |
| Laurentian | GLERL | 24 m | USA |
| Le Suroit | Genavir | 56 m | France |
| Lee | US Geological Survey | 63 m | USA |
| Leonardo | NATO SACLANT Undersea Research Centre | 29 m | NATO |
| Leonid Demin | Dept. of Navigation and Oceanography (HDNO) | 147 m | Russia |
| Lesozavodsk | Turnif | 55 m | Russia |
| L'Europe | Genavir | 30 m | France |
| Limnos (CCGS) | Fisheries and Oceans Canada Communications Branch | 45 m | Canada |
| Little Dipper | University Of Alaska | 5 m | USA |
| Littlehales (USNS) | Military Sealift Command | 63 m | USA |
| Littorina | IFM-GEOMAR, Kiel, Germany | 30 m | Germany |
| Lomonosov | Marine Hydrophysical Institute | 102 m | Ukraine |
| Longhorn | Marine Science Institute, University of Texas | 31 m | USA |
| Lotty | Umea Marine Sciences Centre | 16 m | Sweden |
| Louis M. Lauzier (CCGS) | Fisheries and Oceans Canada Communications Branch | 37 m | Canada |
| Luctor | Netherlands Institute of Ecology | 34 m | Netherlands |
| Ludwing Prandtl | Institute for Coastal Research of GKSS Research Centre | 32 m | Germany |
| Lugovoe | Department of Marine Research Fleet (DMRF) | 34 m | Russia |
| Luigi Sanzo | IAMC-CNR, section Istituto Sperimentale Talassografico of Messina | 15 m | Italy |
| Lura | Instituto Español de Oceanografia (IOE) | 14 m | Spain |
| Magnus Heinason | Faroese Fisheries Laboratory | 44 m | Faroe Islands |
| Mako | California Department of Fish and Game At San Pedro/ Long Beach | 24 m | USA |
| Mare Nigrum | Geo Ecomar Bucharest | 82 m | Romania |
| Maria S. Merian | Leitstelle Forschungsschiffe, Universitaet Hamburg | 95 m | Germany |
| Marion Dufresne | Compagnie Générale Maritime (CGM) | 120 m | France |
| Mary Sear (USNS) | Military Sealift Command Atlantic | 100 m | USA |
| Matsya Mohini | Fishery Survey of India (FSI) | 42 m | India |
| Matsya Nireekshani | Fishery Survey of India (FSI) | 41 m | India |
| Matthew (CCGS) | Bedford Institute of Oceanography (Bio) | 50 m | Canada |
| Maurice Ewing | Lamont-Doherty Earth Observatory | 70 m | USA |
| Maxrover 2x4, MK1 (ROV) | Naval Facilities Engineering Service Center | 2 m | USA |
| McArthur II | NOAA Marine and Aviation Operations | 68 m | USA |
| Mediterranean Explorer | Weil Shipping LTD | 20 m | Israel |
| Meiyo | Japan Coast Guard | 60 m | Japan |
| Melosira | University of Vermont | 14 m | USA |
| Melville | Scripps Institution of Oceanography (SIO) | 85 m | USA |
| Meteor | Leitstelle Forschungsschiffe, Universitaet Hamburg | 98 m | Germany |
| Mikhail Somov | SCS Shipping Consulting & Service GmbH | 133 m | Russia |
| Miller Freeman | NOAA Marine and Aviation Operations | 66 m | USA |
| Mirai | Global Ocean Development Inc (GODI) | 129 m | Japan |
| Mitomaru | Fisheries Experimental Station of Ibaraki Pref. | 46 m | Japan |
| Mlechny Put | Turnif | 102 m | Russia |
| Moana Wave | University of Hawaii | 66 m | USA |
| Monitor VI | Ontario MOE | 8 m | Canada |
| Monokristall | Zaprybpromrazvedka | 55 m | Russia |
| Moresby | Hydrographic Service | 96 m | Australia |
| Morskoy Geofizik | Department of Marine Research Fleet (DMRF) | 56 m | Russia |
| Mt Mitchell | Mt. Mitchell, LLC | 70 m | USA |
| MTA Sismik I | MTA General Directorate | 56 m | Turkey |
| Mudpuppy | Great Lakes National Program Office EPA | 10 m | USA |
| Muikku | South Savo Regional Environment Centre and University of Joensuu, Large Lakes Research Unit | 28 m | Finland |
| Musky II | Great Lakes Science Center USGS/BRD | 14 m | USA |
| Mussel Point | UCDAVIS | 13 m | USA |
| Mutiara | Hydrographic Directorate, Ministry of Defence | 71 m | Malaysia |
| Mya | Reederei F. Laeisz (Bremerhaven) GmbH | 18 m | Germany |
| Mytilus | Instituto de Investigaciones Marinas de Vigo | 24 m | Spain |
| Naftilos | Hellenic Navy Hydrographic Service | 63 m | Greece |
| Namaycush | Ontario Ministry of Natural Resources - Lake Ontario Management Unit | 15 m | Canada |
| Nancy Foster | NOAA Marine and Aviation Operations | 57 m | USA |
| Natell | Wavemaster Langkawi Yacht Centre | 27 m | St Vincent & Grenadines |
| Nathaniel B. Palmer | Raytheon Polar Services Company | 94 m | USA |
| Natsushima | Nippon Marine Enterprises, Ltd. | 67 m | Japan |
| NAVAIR Acoustic Pioneer | Seaward Services Inc. | 57 m | USA |
| NAVAIR-03 | Seaward Services | 20 m | USA |
| NAVAIR-38 | Seaward Services Inc. | 58 m | USA |
| Navicula | Institute of Oceanography and Fisheries | 11 m | Croatia |
| Navicula | Nederlands Instituut voor Onderzoek der Zee (NlOZ) | 24 m | Netherlands |
| Navicula (CCGS) | Bedford Institute of Oceanography (Bio) | 20 m | Canada |
| Navicula (MTU) | Michigan Technological University | 9 m | USA |
| Nawigator XXI | Maritime University of Szczecin | 60 m | Poland |
| Neeskay | Center of Great Lakes Studies | 22 m | USA |
| Neptune | Hydrographic Survey Co. Inc. | 21 m | USA |
| Nereus | Tjärnö Marine Biological Laboratory | 16 m | Sweden |
| New Horizon | Scripps Institution of Oceanography (SIO) | 52 m | USA |
| Newton | MoD, Royal Maritime Auxiliary Service | 99 m | UK |
| Nippon Maru | Japan Marine Fishery Resource Research Center (JAMARC) | 79 m | Japan |
| Noctiluca | School of Biological Sciences | 12 m | UK |
| Noodin | The Large Lakes Observatory | 8 m | USA |
| Northern Whale | Star Line, Inc. | 29 m | Canada |
| Noruega | Instituto de Investigação das Pescas e do Mar (IPIMAR) | 48 m | Portugal |
| Nour | Marine Biological Research Center | 49 m | Libya |
| NRP "Almirante Gago Coutinho" | Instituto Hidrográfico | 68 m | Portugal |
| NRP "Andrómeda" | Instituto Hidrográfico | 31 m | Portugal |
| NRP "Auriga" | NRP “Auriga” – Base Naval de Lisboa | 32 m | Portugal |
| NRP "D. Carlos I" | Instituto Hidrográfico | 68 m | Portugal |
| Nucella | Ira C. Darling Marine Center for Research, University of Maine | 8 m | USA |
| Ocean | Far East Hydrometeorological Institute | 97 m | Russia |
| Ocean Endeavour | Gardline Geosurvey Limited | 77 m | UK |
| Ocean Seeker | Gardline Geosurvey Limited | 81 m | UK |
| Ocean Surveyor | Worldwide Ocean Surveying Ltd. | 87 m | Bermuda |
| Oceaneer IV | Florida Atlantic University, Department of Ocean Engineering | 10 m | USA |
| Oceania | Institute of Oceanology of the Polish Academy of Sciences (IO-PAS) | 49 m | Poland |
| Oceanograf 2 | Institute of Oceanography, University of Gdansk | 23 m | Poland |
| Oceanus | Woods Hole Oceanographic Institution (WHOI) | 54 m | USA |
| Oddissej | Underwater Scientific Research Center | 84 m | Ukraine |
| Oden | Swedish Maritime Administration | 108 m | Sweden |
| Odón de Buen | Instituto Español de Oceanografia (IOE) | 22 m | Spain |
| Odyssey | Odyssey Marine Services | 34 m | USA |
| Odyssey (WCI) | Ocean Alliance & Whale Conservation Institute | 28 m | USA |
| Odyssey Explorer | Odyssey Marine Exploration, Inc | 77 m | USA |
| Oita Maru | Oita Fisheries High School | 54 m | Japan |
| Onnuri | korean Ocean Research and Development Institute (KORDI) | 64 m | Korea |
| Ophelia | Marine Biological Laboratorium | 15 m | Denmark |
| Opilio (CCGS) | Fisheries and Oceans Canada Communications Branch | 18 m | Canada |
| Oregon II | NOAA Marine and Aviation Operations | 52 m | USA |
| Orion (Ecuador) | Inocar | 70 m | Ecuador |
| Oscar Dyson | NOAA, Pacific Marine Operations Centre | 64 m | USA |
| Oscar Elton Sette | NOAA, Pacific Island Science Center | 68 m | USA |
| Oscar von Sydow | Kristineberg Marine Research Station | 12 m | Sweden |
| Oshoro Maru | Faculty of Fisheries, Hokkaido University | 73 m | Japan |
| Osprey | T.L.G. of Miami, Inc. | 29 m | USA |
| Outer Limits | M/V Outer Limits, Inc. | 22 m | USA |
| Oyama | Toyama Prefecture General Education Center | 56 m | Japan |
| P. Gordienko | Far East Hydrometeorolgical Institute | 50 m | Russia |
| Palagruza | Hydrographic Institute of the Republic of Croatia | 46 m | Croatia |
| Palmetto | South Carolina Department of Natural Resources (SCDNR), Marine Resources Research Institute | 34 m | USA |
| Pandalus III (CCGS) | Fisheries and Oceans Canada Communications Branch | 13 m | Canada |
| Parizeau (CCGS) | Bedford Institute of Oceanography (BIO) | 64 m | Canada |
| Pathfinder (USNS) | Military Sealift Command Atlantic | 100 m | USA |
| Pavluchenkov | Yugniro | 62 m | Ukraine |
| Pelagia | Nederlands Instituut voor Onderzoek der Zee (NlOZ) | 66 m | Netherlands |
| Pelican | Louisiana Universities Marine Consortium | 35 m | USA |
| Pender (CCGS) | Fisheries and Oceans Canada Communications Branch | 30 m | Canada |
| Perca | Pennsylvania Fish and Boat Commission | 15 m | USA |
| Perca (WDNR) | WDNR | 14 m | USA |
| Peter W. Anderson | US Environmental Protection Agency (EPA) | 50 m | USA |
| Phantom 300 | NOAA's Undersea Research Center at the University of North Carolina at Wilmington | 1 m | USA |
| Phantom DHD+2 ROV | Naval Facilities Engineering Service Center | 2 m | USA |
| Phantom IV | Tutt Marine Charters | 26 m | Canada |
| Philia | H.C.M.R Marine Department | 26 m | Greece |
| Pipeline Surveyor | BIDCO Marine Group | 34 m | USA |
| Pisces | Great Lakes Center Buffalo State College | 8 m | USA |
| Pisces IV (UVMS) | University Of Hawaii, Hawai'i Undersea Research Laboratory | 6 m | USA |
| Pisces V (UVMS) | Hawai'i Undersea Research Laboratory (HURL) | 6 m | USA |
| Pitheas | Hellenic Navy Hydrographic Service | 50 m | Greece |
| Pluteus | Oregon Institute of Marine Biology | 13 m | USA |
| Point Lobos | Monterey Bay Aquarium Research Institute (MBARI) | 34 m | USA |
| Point Sur | Moss Landing Marine Laboratory | 41 m | USA |
| Polar Duke | Rieber Shipping AS | 67 m | Norway |
| Polar King | Rieber Shipping AS | 103 m | Norway |
| Polar Prince | Star Line Inc. | 73 m | Canada |
| Polar Sea | US Coast Guard | 122 m | USA |
| Polar Star | USCGC POLAR STAR (WAGB 10) | 122 m | USA |
| Polarfuchs | Institute of Marine Research, University of Kiel | 13 m | Germany |
| Polarstern | Reederei F. Laeisz (Bremerhaven) GmbH | 118 m | Germany |
| Poseidon | IFM-GEOMAR, Kiel, Germany | 61 m | Germany |
| Priboy | Far East Hydrometeorological Institute | 96 m | Russia |
| Pride of Michigan | Nobel Odyssey Foundation | 25 m | USA |
| Priliv | Far East Hydrometeorological Institute | 97 m | Russia |
| Prince Madog | VT Ocean Sciences | 35 m | UK |
| Prof. Albrecht Penck | Baltic Marine Service (BMS) | 39 m | Germany |
| Prof. Sergey Dorofeev | State Hydrometeorological Institute of Russian Federation | 73 m | Russia |
| Prof. W. Besnard | Instituto Oceanografico of the Sao Paulo University | 49 m | Brazil |
| Professor A. Valkanov | Institute of Fisheries and Aqua Culture | 34 m | Bulgaria |
| Professor Bogorov | DMRF | 69 m | Russia |
| Professor Gagarinsky | Department of Marine Research Fleet | 56 m | Russia |
| Professor Kaganovsky | Pacific Dept. of Perspective Scientific Fisheries Research-Turnif | 62 m | Russia |
| Professor Khromov | Far East Hydrometeorological Institute (FERHRI) | 72 m | Russia |
| Professor Kizivetter | Turnif | 62 m | Russia |
| Professor Kurentsov | SCS Shipping Consulting & Service GmbH | 69 m | Russia |
| Professor Levanidov | Turnif | 62 m | Russia |
| Professor Logachev | Polar Marine Geosurvey Expedition | 105 m | Russia |
| Professor Marti | Npo Sevrybpoisk | 62 m | Russia |
| Professor Multanovskiy | SCS Shipping Consulting & Service GmbH | 72 m | Russia |
| Professor Shtockman | P.P. Shirshov Institute of Oceanology | 69 m | Russia |
| Professor Soldatov | Pacific Dept. of Perspective Scientific Fisheries Research-Turnif | 62 m | Russia |
| Professor Viese | The Arctic & Antarctic Research Institute (DDNII) | 124 m | Russia |
| Professor Vodyanitskiy | Institute of Biology of the Southern Seas | 6886 m | Ukraine |
| Professor Zubov | The Arctic & Antarctic Research institute (DDNII) | 124 m | Russia |
| Puerto Deseado | Conicet | 77 m | Argentina |
| Pugettia | Oregon Institute of Marine Biology | 7 m | USA |
| Pusan 403 | National Fisheries Nuiversity of Pusan | 43 m | Korea |
| Pusan 851 | National Fisheries Research and Development Agency | 70 m | Korea |
| Quest | Defence R and D Canada - Atlantic | 77 m | Canada |
| R. B. Young (CCGS) | Fisheries and Oceans Canada Communications Branch | 32 m | Canada |
| Rafeal | USGS Coastal and Marine Geology Program | 8 m | USA |
| Rainier | NOAA Marine and Aviation Operations | 70 m | USA |
| Research IV | DTE Energy Corporation | 8 m | USA |
| Researcher | Fishery Resources Research Division | 44 m | Philippines |
| Retriever | Monterey Canyon Research Vessels, Inc. | 15 m | USA |
| Revisor (CCGS) | Fisheries and Oceans Canada Communications Branch | 12 m | Canada |
| Richardson Point | Seaward Engineering and Research Ltd. | 20 m | Canada |
| Rift | P.P Shirshov institute of Oceanology | 54 m | Russia |
| Roagan | Port Erin Marine Laboratory | 24 m | UK |
| Robert C Seamans | Sea Education Association | 41 m | USA |
| Robert Gordon Sproul | Scripps Institution of Oceanography (SIO) | 38 m | USA |
| Roebuck (HMS) | Hydrographic Surveying Squadron | 64 m | UK |
| Roger Revelle | Scripps Institution of Oceanography (SIO) | 83 m | USA |
| Ronald H. Brown | NOAA's Office of Marine and Aviation Operations (OMAO) | 84 m | USA |
| Ropos (ROV) | Canadian Scientific Submersible Facility | 3 m | Canada |
| Rossija | Murmansk Shipping Co. | 148 m | Russia |
| Rude | NOAA, Atlantic Marine Center | 27 m | USA |
| Ryofu Maru | Japan Meteorological Agency | 82 m | Japan |
| Sae Ba Da | National Fisheries University of Pusan | 91 m | Korea |
| Sagar Kanya | National Centre for Antarctic & Ocean Research (NCAOR) | 100 m | India |
| Sagar Nidhi | National Institute of Ocean Technology | 104 m | India |
| Sagar Paschimi | National Institute of Ocean Technology | 30 m | India |
| Sagar Purvi | National Institute of Ocean Technology | 30 m | India |
| Sagar Sampada | Shipping Corporation of India Ltd. | 72 m | India |
| Sagita | Marine Biology Station | 12 m | Slovenia |
| Samruat Pramong 4 | Department of Fisheries | 48 m | Thailand |
| Sardinella | Collgege of Fisheries, UPV | 40 m | Philippines |
| Sardinops | Marine and Coastal Management | 37 m | South Africa |
| Sarmiento de Gamboa | Consejo Superior de Investigaciones Científicas (CSIC) | 70 m | Spain |
| Satsumaseiun Maru | Kagoshima Fisheries High School | 52 m | Japan |
| Satsunan | Kagoshima Pref. Fisheries Exp. Station | 45 m | Japan |
| Savannah | Skidaway Institute of Oceanography | 28 m | USA |
| Schall | STN Atlas Electronic | 49 m | Germany |
| Schollevaar | Ministry of Agriculture, Nature and Food Quality | 21 m | Netherlands |
| Science 1 | Institute of Oceanology | 104 m | China |
| Scotia | FRS Marine Laboratory | 69 m | UK |
| Scott (HMS) | Hydrographic Surveying Squadron, MoD | 131 m | UK |
| Sculpin | Illinois Natural History Survey | 10 m | USA |
| Sea Ark | Indiana Department of Natural Resources | 10 m | USA |
| Sea Diver | Harbor Branch Oceanographic Institution (HBOI) | 34 m | USA |
| Sea Explorer | Gardline Geosurvey Limited | 59 m | Bahamas |
| Sea Otter (DOV) | Nuytco Research Ltd. | 4 m | Canada |
| Sea Profiler | Gardline Geosurvey Limited | 66 m | Panama |
| Sea Surveyor | Sea Surveyor | 37 m | USA |
| Sea Surveyor (GSL) | Gardline Geosurvey Limited | 64 m | Bahamas |
| Sea Trident | Gardline Geosurvey Limited | 58 m | Panama |
| Sea vigil | Environment Agency, National Marine Service | 16 m | UK |
| Sea World UCLA | Sea World UCLA | 20 m | USA |
| Seafdec | SEAFDEC/TD | 65 m | Thailand |
| Seahawk | University of North Carolina Wilmington Center for Marine Science | 11 m | USA |
| Seawatch | Southern California Marine Institute (SCMI) | 20 m | USA |
| Seawolf | Marine Sciences Research Center, SUNY Stony Brook | 24 m | USA |