| Fishes | Acanthogobius flavimanus | 1992 | Non-native | Established | Discarded Bait, Natural Dispersal |
| Bryozoans | Amathia dichotoma* | 2013 | Non-native | Established | Hull Fouling |
| Bryozoans | Amathia verticillata | 1963 | Non-native | Established | None |
| Annelids-Polychaetes | Amblyosyllis nigrolineata | 2000 | Non-native | Established | Ballast Water |
| Crustaceans-Barnacles | Amphibalanus amphitrite | 1977 | Non-native | Established | Ballast Water |
| Crustaceans-Amphipods | Ampithoe valida | 2001 | Non-native | Established | Ballast Water, Discarded Bait |
| Crustaceans-Amphipods | Aoroides secunda | 1998 | Non-native | Established | Ballast Water |
| Tunicates | Aplidium accarense* | 2018 | Non-native | Established | Hull Fouling |
| Mollusks-Bivalves | Arcuatula senhousia | 1965 | Non-native | Established | Ballast Water |
| Tunicates | Ascidia cf. virginea* | 2019 | Non-native | Established | Hull Fouling |
| Tunicates | Ascidia zara | 1995 | Non-native | Established | None |
| Entoprocts | Barentsia benedeni | 2011 | Non-native | Established | Hull Fouling |
| Tunicates | Botrylloides diegensis | 2011 | Non-native | Established | Hull Fouling |
| Tunicates | Botrylloides giganteus | 1998 | Non-native | Established | None |
| Tunicates | Botrylloides violaceus | 1994 | Non-native | Established | None |
| Tunicates | Botryllus schlosseri | 1994 | Non-native | Established | None |
| Bryozoans | Bugula neritina | 1977 | Non-native | Established | None |
| Cnidarians-Anthozoans | Bunodeopsis sp. A | 1995 | Non-native | Established | Ballast Water, Natural Dispersal |
| Crustaceans-Amphipods | Caprella mutica | 2011 | Non-native | Established | Hull Fouling |
| Crustaceans-Amphipods | Caprella simia | 2011 | Non-native | Established | Hull Fouling |
| Sponges | Chalinula loosanoffi* | 2001 | Non-native | Established | None |
| Tunicates | Ciona robusta | 1964 | Non-native | Established | Hull Fouling |
| Tunicates | Ciona savignyi | 1994 | Non-native | Established | Ballast Water |
| Bryozoans | Cryptosula pallasiana | 2000 | Non-native | Established | None |
| Cnidarians-Anthozoans | Diadumene franciscana | 1977 | Non-native | Established | Ballast Water |
| Cnidarians-Anthozoans | Diadumene lineata | 1996 | Non-native | Established | None |
| Tunicates | Didemnum vexillum | 2007 | Non-native | Established | None |
| Annelids-Polychaetes | Diplocirrus SD1 | 1998 | Non-native | Established | Ballast Water, Hull Fouling |
| Tunicates | Diplosoma listerianum | 1994 | Non-native | Established | None |
| Cnidarians-Hydrozoans | Ectopleura crocea | 1896 | Non-native | Established | Hull Fouling |
| Algae | Gracilaria vermiculophylla | 2017 | Non-native | Established | None |
| Crustaceans-Amphipods | Grandidierella japonica | 1998 | Non-native | Established | Ballast Water |
| Algae | Grateloupia turuturu | 2011 | Non-native | Established | Hull Fouling |
| Sponges | Halichondria bowerbanki* | 2001 | Non-native | Established | None |
| Annelids-Polychaetes | Heteromastus filiformis species complex | 2011 | Non-native | Established | Ballast Water |
| Sponges | Hymeniacidon perlevis* | 1966 | Non-native | Established | Hull Fouling |
| Fishes | Lepomis cyanellus | 1973 | Non-native | Established | Fisheries Intentional |
| Fishes | Lepomis macrochirus | 1973 | Non-native | Established | Fisheries Intentional |
| Crustaceans-Amphipods | Leucothoe nagatai | 2011 | Non-native | Established | Habitat Restoration |
| Crustaceans-Isopods | Limnoria tripunctata | 1948 | Non-native | Established | None |
| Mollusks-Bivalves | Magallana gigas | 2005 | Non-native | Established | Ballast Water, Oyster Intentional |
| Annelids-Polychaetes | Megasyllis nipponica | 2000 | Non-native | Established | Ballast Water |
| Crustaceans-Amphipods | Melita rylovae | 2011 | Non-native | Established | Ballast Water, Hull Fouling |
| Tunicates | Microcosmus squamiger | 1994 | Non-native | Established | None |
| Tunicates | Molgula ficus | 1995 | Non-native | Established | None |
| Crustaceans-Amphipods | Monocorophium acherusicum | 2011 | Non-native | Established | None |
| Crustaceans-Amphipods | Monocorophium insidiosum | 2011 | Non-native | Established | Hull Fouling |
| Annelids-Polychaetes | Myrianida pachycera | 2013 | Non-native | Established | Ballast Water, Hull Fouling |
| Annelids-Polychaetes | Myrianida pentadentata | 2013 | Non-native | Established | Ballast Water, Hull Fouling |
| Mollusks-Bivalves | Mytilus galloprovincialis | 2000 | Non-native | Established | Ballast Water |
| Annelids-Polychaetes | Neodexiospira brasiliensis | 2011 | Non-native | Established | Hull Fouling |
| Annelids-Polychaetes | Nicolea sp. A. Harris | 2000 | Non-native | Established | Ballast Water |
| Crustaceans-Shrimp | Palaemon macrodactylus | 2001 | Non-native | Established | Ballast Water, Discarded Bait |
| Crustaceans-Amphipods | Paradexamine sp. SD1 | 1998 | Non-native | Established | Ballast Water |
| Crustaceans-Isopods | Paranthura japonica | 2000 | Non-native | Established | Ballast Water |
| Annelids-Polychaetes | Parasabella fullo | 2011 | Non-native | Established | Hull Fouling |
| Tunicates | Perophora japonica | 2019 | Non-native | Established | None |
| Mollusks-Gastropods | Philine auriformis | 2004 | Non-native | Established | Ballast Water, Natural Dispersal |
| Cnidarians-Scyphozoans | Phyllorhiza punctata | 1981 | Non-native | Established | Ballast Water |
| Tunicates | Polyandrocarpa zorritensis | 1994 | Non-native | Established | None |
| Annelids-Polychaetes | Polydora cornuta | 1938 | Non-native | Established | None |
| Crustaceans-Copepods | Pseudodiaptomus marinus | 1986 | Non-native | Established | Ballast Water, Fisheries Accidental (not Oyster) |
| Annelids-Polychaetes | Pseudopolydora paucibranchiata | 1996 | Non-native | Established | Hull Fouling |
| Protozoans | Rhizodomus tagatzi* | 2004 | Non-native | Established | Ballast Water |
| Mollusks-Bivalves | Ruditapes philippinarum | 2012 | Non-native | Established | Biocontrol, Discarded Bait, Fisheries Accidental (not Oyster) |
| Algae | Sargassum horneri | 2012 | Non-native | Established | None |
| Algae | Sargassum muticum | 1959 | Non-native | Established | Ballast Water, Natural Dispersal |
| Crustaceans-Amphipods | Stenothoe valida | 2011 | Non-native | Established | Hull Fouling, Natural Dispersal |
| Annelids-Polychaetes | Streblospio benedicti | 1982 | Non-native | Established | Ballast Water |
| Tunicates | Styela canopus | 1996 | Non-native | Established | None |
| Tunicates | Styela clava | 1971 | Non-native | Established | None |
| Tunicates | Styela plicata | 1966 | Non-native | Established | None |
| Tunicates | Symplegma reptans | 1997 | Non-native | Established | Hull Fouling |
| Mollusks-Bivalves | Theora lubrica | 1978 | Non-native | Established | Ballast Water |
| Protozoans | Trochammina hadai* | 1998 | Non-native | Established | Ballast Water, Unknown Vector |
| Annelids-Oligochaetes | Tubificoides brownae* | 1996 | Non-native | Established | Ballast Water, Dry Ballast |
| Algae | Ulva australis | 1999 | Non-native | Established | Ballast Water, Hull Fouling |
| Algae | Undaria pinnatifida | 2014 | Non-native | Established | Hull Fouling, Natural Dispersal |
| Bryozoans | Watersipora arcuata | 2003 | Non-native | Established | None |
| Bryozoans | Watersipora subatra* | 2000 | Non-native | Established | Hull Fouling |
| Bryozoans | Watersipora subtorquata | 2000 | Non-native | Established | Hull Fouling |
| Bryozoans | Watersipora subtorquata | 1989 | Non-native | Established | None |