| Station name | Holding centre | Parameters |
| Aarhus | Danish Meteorological Institute, Oceanographic Section | |
| Arkona | Federal Maritime and Hydrographic Agency | |
| Ballen | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Barsebäck | Swedish Meteorological and Hydrological Institute, SMHI | |
| Darss Sill | Federal Maritime and Hydrographic Agency | |
| Daugagriva | Latvian Environmental, Gelology and Hydrometeorological Agency | |
| Dbucht | Federal Maritime and Hydrographic Agency | |
| Degerby | Finnish Meteorological Institute (FMI) | |
| Drogden | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Ems | Federal Maritime and Hydrographic Agency | |
| FehmarnBelt | Federal Maritime and Hydrographic Agency | |
| Fino1 | Federal Maritime and Hydrographic Agency | |
| Forsmark | Swedish Meteorological and Hydrological Institute, SMHI | |
| Fredericia | Danish Meteorological Institute, Oceanographic Section | |
| Fredrikshavn | Danish Meteorological Institute, Oceanographic Section | |
| Furuögrund | Swedish Meteorological and Hydrological Institute, SMHI | |
| Fynshavn | Danish Meteorological Institute, Oceanographic Section | |
| Gdansk | Institute of Meteorology and Water Management, Maritime Branch in Gdynia (IMWM MB) | |
| Gedser | Danish Meteorological Institute, Oceanographic Section | |
| Göteborg | Swedish Meteorological and Hydrological Institute, SMHI | |
| Grenå | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Hel | Maritime Institute in Gdansk (MIG) - Department of Operational Oceanography | |
| Helsinki | Finnish Meteorological Institute (FMI) | |
| Hesnaes | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Hornbaek | Danish Meteorological Institute, Oceanographic Section | |
| Huvudskär | Swedish Meteorological and Hydrological Institute, SMHI | |
| Juelsminde | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Kalix | Swedish Meteorological and Hydrological Institute, SMHI | |
| Kaskinen | Finnish Meteorological Institute (FMI) | |
| Kemi | Finnish Meteorological Institute (FMI) | |
| Kiel | Federal Maritime and Hydrographic Agency | |
| Kiel-Holtenau | Federal Maritime and Hydrographic Agency | |
| Klagshamn | Swedish Meteorological and Hydrological Institute, SMHI | |
| Klaipeda | Department of Marine Research of the Environmental Protection Agency | |
| Kobenhavn | Danish Meteorological Institute, Oceanographic Section | |
| Kolka | Latvian Environmental, Gelology and Hydrometeorological Agency | |
| Korsör | Danish Meteorological Institute, Oceanographic Section | |
| Koserow | Federal Maritime and Hydrographic Agency | |
| Kronstadt | North-Western Regional Administration of Hydrometeorology of Roshydromet | |
| Kungsholmsfort | Swedish Meteorological and Hydrological Institute, SMHI | |
| Kungsvik | Swedish Meteorological and Hydrological Institute, SMHI | |
| LandsortNorra | Swedish Meteorological and Hydrological Institute, SMHI | |
| Läsö | Swedish Meteorological and Hydrological Institute, SMHI | |
| Lehtma | TTU Marine Systems Institute | |
| Marviken | Swedish Meteorological and Hydrological Institute, SMHI | |
| N.Baltic | Finnish Meteorological Institute (FMI) | |
| NordreRøse | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Nsb2 | Federal Maritime and Hydrographic Agency | |
| Nsb3 | Federal Maritime and Hydrographic Agency | |
| Oderbank | Federal Maritime and Hydrographic Agency | |
| Oskarshamn | Swedish Meteorological and Hydrological Institute, SMHI | |
| Paldiski | TTU Marine Systems Institute | |
| Pärnu | TTU Marine Systems Institute | |
| Pietarsaari | Finnish Meteorological Institute (FMI) | |
| Ratan | Swedish Meteorological and Hydrological Institute, SMHI | |
| Ringhals | Swedish Meteorological and Hydrological Institute, SMHI | |
| Rödby | Danish Meteorological Institute, Oceanographic Section | |
| Rødvig | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Rønne | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| S.Baltic | Swedish Meteorological and Hydrological Institute, SMHI | |
| S.Bothnian | Swedish Meteorological and Hydrological Institute, SMHI | |
| Sassnitz | Federal Maritime and Hydrographic Agency | |
| Sillimäe | TTU Marine Systems Institute | |
| Simrishamn | Swedish Meteorological and Hydrological Institute, SMHI | |
| SjaellandsOdde | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Skagen | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Skanör | Swedish Meteorological and Hydrological Institute, SMHI | |
| Slipshavn | Danish Meteorological Institute, Oceanographic Section | |
| Smögen | Swedish Meteorological and Hydrological Institute, SMHI | |
| Soru | TTU Marine Systems Institute | |
| Spikarna | Swedish Meteorological and Hydrological Institute, SMHI | |
| St Petersburg | North-Western Regional Administration of Hydrometeorology of Roshydromet | |
| Stenungsund | Swedish Meteorological and Hydrological Institute, SMHI | |
| Stockholm | Swedish Meteorological and Hydrological Institute, SMHI | |
| Store Bält N | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Store Bält S | Royal Danish Administration of Navigation & Hydrography, Oceanographic Department | |
| Tallin | TTU Marine Systems Institute | |
| Tejn | Danish Meteorological Institute, Oceanographic Section | |
| Travemunde | Federal Maritime and Hydrographic Agency | |
| Ustka | Institute of Meteorology and Water Management, Maritime Branch in Gdynia (IMWM MB) | |
| Väderöarna | Swedish Meteorological and Hydrological Institute, SMHI | |
| Vidåslusen | Danish Meteorological Institute, Oceanographic Section | |
| Viken | Swedish Meteorological and Hydrological Institute, SMHI | |
| Warnemunde | Federal Maritime and Hydrographic Agency | |