| Crustaceans-Barnacles | Amphibalanus improvisus | 1869 | Definite | Established | Hull Fouling |
| Annelids-Polychaetes | Boccardiella ligerica | 1972 | Definite | Established | Ballast Water, Natural Dispersal |
| Crustaceans-Cladocerans | Cercopagis pengoi* | 1995 | Definite | Established | Ballast Water, Canal |
| Bryozoans | Conopeum chesapeakensis | 2024 | Definite | Established | Ballast Water, Hull Fouling |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1924 | Definite | Established | Canal, Hull Fouling |
| Fishes | Cyprinus carpio | 1400 | Definite | Established | Fisheries Intentional |
| Mollusks-Bivalves | Dreissena polymorpha | 1850 | Definite | Established | Canal |
| Crustaceans-Crabs | Eriocheir sinensis | 1933 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Copepods | Eurytemora carolleeae | 2007 | Definite | Established | Ballast Water |
| Crustaceans-Amphipods | Gammarus tigrinus | 2003 | Definite | Established | Ballast Water |
| Crustaceans-Mysids | Hemimysis anomala* | 2012 | Definite | Established | None |
| Annelids-Polychaetes | Marenzelleria neglecta | 2004 | Definite | Established | Ballast Water |
| Mollusks-Bivalves | Mya arenaria | None | Definite | Established | Dry Ballast, Fisheries Accidental (not Oyster), Natural Dispersal |
| Mollusks-Bivalves | Mytilopsis leucophaeata | 2003 | Definite | Established | Ballast Water, Hull Fouling |
| Fishes | Neogobius melanostomus* | 2004 | Definite | Established | Ballast Water, Natural Dispersal |
| Crustaceans-Cumaceans | Nippoleucon hinumensis | 2021 | Definite | Established | Ballast Water |
| Crustaceans-Shrimp | Palaemon elegans | 2003 | Definite | Established | Ballast Water |
| Annelids-Oligochaetes | Paranais frici* | 1969 | Definite | Established | Aquatic Plant Shipments, Ballast Water, Canal |
| Mollusks-Gastropods | Potamopyrgus antipodarum | 1936 | Definite | Established | Cargo, Dry Ballast, Natural Dispersal, Packing Material |
| Mollusks-Bivalves | Rangia cuneata | 2021 | Definite | Established | Ballast Water |
| Crustaceans-Tanaids | Sinelobus cf. stanfordi | None | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Arthropoda-Insects | Telmatogeton japonicus* | 2008 | Definite | Established | Cargo, Hull Fouling |