Hellenic SeaWays, a company with a presence in the maritime field for more than 15 years, connects a large amount of ports in Cyclades, Northeastern Aegean and the Saronic Gulf. The fleet of the company includes 20 vessels, 4 highspeed, 8 conventional, 5 catamaran ships and 3 flying dolphins. Hellenic Seaways travel to the following destinations: Piraeus, Lavrio, Kea, Kythnos, Siros, Tinos, Andros, Paros, Naxos, Ios, Sikinos, Folegandros, Kimolos, Milos, Serifos, Sifnos, Agios Efstratios, Limnos, Kavala, Mykonos, Evdilos, Agios Kirikos, Fournoi, Karlovasi, Vathy, Chios, Mytilene, Agkistri, Poros, Hydra, Ermioni, Spetses, Porto Cheli and Aigina.
Hellenic Seaways follow a Quality, Environmental & Energy Management System as per ISO 9001:2008, 14001:2004 & 50001:2011. Two vessels of the company, Nissos Mykonos and Nissos Chios are awarded with the "Green Star" certificate of environmental protection by the Italian classification society RINA.