| Country Name | Sea Name | Number of Ports | * Introductions in Ports |
|---|---|---|---|
| Bosnia and Herzegovina | Baltic Sea | ||
| Brazil | Baltic Sea | ||
| Brunei Darussalam | Baltic Sea | ||
| Bulgaria | Baltic Sea | ||
| Cambodia | Baltic Sea | ||
| Cameroon | Baltic Sea | ||
| Canada | Baltic Sea | ||
| Cape Verde | Baltic Sea | ||
| Chile | Baltic Sea | ||
| China | Baltic Sea | ||
| Colombia | Baltic Sea | ||
| Congo | Baltic Sea | ||
| Congo, Democratic Republic of | Baltic Sea | ||
| Costa Rica | Baltic Sea | ||
| Cote dIvoire | Baltic Sea | ||
| Croatia | Baltic Sea | 1 | |
| Cuba | Baltic Sea | ||
| Cyprus | Baltic Sea | 1 | |
| Denmark | Baltic Sea | 30 | 38 |
| Djibouti | Baltic Sea |