TBA21–Academy
- Verkkosivusto
- Maa
- Italia
- Type of member
- Expert(s)
- Markus Reymann
- Sea basin regions
- Arctic OceanAtlantic Ocean (including North Sea)Baltic SeaInternational (other sea-basins / ocean)Mediterranean Sea
The Marine Biological Association (MBA)
- Verkkosivusto
- Maa
- Yhdistynyt kuningaskunta
- Type of member
- Type of member - other
- Marine science and association
- Expert(s)
- Jon Parr
- Sea basin regions
- Atlantic Ocean (including North Sea)
The Marine Diaries
- Verkkosivusto
- Maa
- Yhdistynyt kuningaskunta
- Type of member
- Expert(s)
- Rebecca Daniel, Rita Steyn, Mae Dorricott
- Sea basin regions
- Arctic OceanAtlantic Ocean (including North Sea)Baltic SeaBlack SeaInternational (other sea-basins / ocean)Mediterranean Sea
The Swedish Institute for the Marine Environment
- Verkkosivusto
- Maa
- Ruotsi
- Type of member
- Expert(s)
- Kajsa Tönnesson Tina Johansen Lilja Maria Lewander
- Sea basin regions
- Atlantic Ocean (including North Sea)Baltic Sea
Tiger Lilies Foundation (Fundacja Tygrysie Lilie)
- Verkkosivusto
- Maa
- Puola
- Type of member
- Expert(s)
- Agata Skomar, Dominika Wojcieszek
- Sea basin regions
- Baltic Sea
TNO Energy transition
- Verkkosivusto
- Maa
- Alankomaat
- Type of member
- Type of member - other
- RTO
- Expert(s)
- Jaap van Hal
- Sea basin regions
- Atlantic Ocean (including North Sea)
Today We Have
- Verkkosivusto
- Maa
- Puola
- Type of member
- Type of member - other
- Non-formal educating institution
- Expert(s)
- Izabela Kotynska-Zielinska, Anna Pradzinska, Kajetan Deja
- Sea basin regions
- International (other sea-basins / ocean)
TransEurope Marinas
- Verkkosivusto
- Maa
- Ranska
- Type of member
- Type of member - other
- Association
- Expert(s)
- Melanie Symes
- Sea basin regions
- Atlantic Ocean (including North Sea)Baltic SeaInternational (other sea-basins / ocean)Mediterranean Sea
UNEP/MAP Barcelona Convention Secretariat
- Verkkosivusto
- Maa
- Kreikka
- Type of member
- Expert(s)
- Gaetano Leone, Tatjana Hema and Ilias Mavroeidis
- Sea basin regions
- Mediterranean Sea
University of Lapland
- Verkkosivusto
- Maa
- Suomi
- Type of member
- Expert(s)
- Stefan Kirchner
- Sea basin regions
- Arctic OceanBaltic SeaInternational (other sea-basins / ocean)
UTOPIA
- Verkkosivusto
- Maa
- Ranska
- Type of member
- Expert(s)
- Baptiste de La Gournerie
- Sea basin regions
- Atlantic Ocean (including North Sea)International (other sea-basins / ocean)
VITA XXI SLP
- Verkkosivusto
- Maa
- Espanja
- Type of member
- Expert(s)
- Juan Diego López Giraldo
- Sea basin regions
- International (other sea-basins / ocean)Mediterranean Sea
WE ATLANTIC
- Verkkosivusto
- Maa
- Ranska
- Type of member
- Expert(s)
- François Arbellot
- Sea basin regions
- Arctic OceanAtlantic Ocean (including North Sea)
WILDSEA Europe
- Verkkosivusto
- Maa
- Espanja
- Type of member
- Expert(s)
- Julia Vera Prieto
- Sea basin regions
- Atlantic Ocean (including North Sea)Mediterranean Sea
Women4Oceans
- Verkkosivusto
- Maa
- Alankomaat
- Type of member
- Expert(s)
- Farah Obaidullah
- Sea basin regions
- International (other sea-basins / ocean)
World Ocean Day for Schools
- Verkkosivusto
- Maa
- Portugali
- Type of member
- Type of member - other
- World Ocean Day for Schools
- Expert(s)
- Linzi Hawkin
- Sea basin regions
- Arctic OceanAtlantic Ocean (including North Sea)Baltic SeaBlack SeaInternational (other sea-basins / ocean)Mediterranean Sea
World Ocean Network
- Maa
- Ranska
- Type of member
- Sea basin regions
- International (other sea-basins / ocean)
Worldrise ONLUS
- Verkkosivusto
- Maa
- Italia
- Type of member
- Sea basin regions
- Mediterranean Sea
Youth and Environment Europe (YEE)
- Verkkosivusto
- Maa
- Tšekki
- Type of member
- Expert(s)
- Nathan Méténier / Bilinc Sezgin
- Sea basin regions
- Baltic SeaBlack SeaInternational (other sea-basins / ocean)Mediterranean Sea