Superfast Ferries
- Operates the Rostock-Paldiski route in co-operation with Tallink.
- http://www.superfast.com/

Narva Line
- Operates the ferry line between Sillamäe (in Ida-Virumaa) and Kotka (in Finland). [Estonian, English, Finnish, Russian]
- http://www.narvaline.com/

SLK Ferries
- Operates the ferry service between Mõntu (Saaremaa) and Ventspils (Latvia). [Estonian, English, Latvian, Russian, German]
- http://www.slkferries.ee/

Saaremaa Ferry Company
- Operates ferries between the mainland and Saaremaa (Muhu) and Hiiumaa as well as between Saaremaa and Hiiumaa. [Estonian, English]
- http://www.laevakompanii.ee/

Tallink
- Ferries from Estonia to Finland, Sweden and Germany. Including the Paldiski-Stockholm and Paldiski-Rostock routes. [Estonian, English, Russian]
- http://www.tallink.com/

LindaLine Express
- Hydrofoils between Tallinn and Helsinki. [Estonian, English, Finnish]
- http://www.lindaliini.ee/

Silja Line
- Ferries between Tallinn and Helsinki. [Estonian, English, Russian, Finnish, Swedish]
- http://www.silja.ee/

Viking Line
- Ferries between Tallinn and Helsinki. [Estonian, English]
- http://www.vikingline.ee/

Eckeröline
- Ferries between Tallinn and Helsinki. [Estonian, English]
- http://www.eckeroline.ee/

Nordic Jet Line
- Fast ferry katamaran between Helsinki and Tallinn. [Estonian, English, Finnish]
- http://www-eng.njl.fi/