The Isles of Scilly Steamship Company (ISSC) operates the principal shipping service from Penzance, in Cornwall, to the Isles of Scilly, located 28 miles (45 km) to the southwest.
It provides a year-round cargo service together with a seasonal passenger service in summer.
The name of the company's principal ferry, the Scillonian III, is perhaps better known than that of the company itself.

The company is based in the Isles of Scilly Travel Centre Penzance.
It also owns Isles of Scilly Skybus Ltd, an operator of fixed-wing aircraft services to the Isles of Scilly, and sight seeing flights.

In 2010, the company had close to 1,000 shareholders, around half of whom live on the Isles of Scilly.
Due to the Isles of Scilly's remote location, the shipping service is often called 'a life line' for the archipelago.

In addition to passengers, 12,000 to 14,000 tonnes of cargo are normally carried by Scillonian III and Gry Maritha every year.
The Isles of Scilly Steamship Company (ISSC) operates the principal shipping service from Penzance, in Cornwall, to the Isles of Scilly, located 28 miles (45 km) to the southwest. It provides a year-round cargo service together with a seasonal passenger service in summer. The name of the company's principal ferry, the Scillonian III, is perhaps better known than that of the company itself.
The company is based in the Isles of Scilly Travel Centre Penzance. It also owns Isles of Scilly Skybus Ltd, an operator of fixed-wing aircraft services to the Isles of Scilly, and sight seeing flights.
In 2010, the company had close to 1,000 shareholders, around half of whom live on the Isles of Scilly. Due to the Isles of Scilly's remote location, the shipping service is often called 'a life line' for the archipelago.
In addition to passengers, 12,000 to 14,000 tonnes of cargo are normally carried by Scillonian III and Gry Maritha every year.
Isles of Scilly Steamship Company