Johnson Line was a Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

-based shipping line

Shipping line

-History of shipping lines:Large-scale shipping lines became widespread in the nineteenth century, after the development of the steamship in 1783. At first, Great Britain was the centr of development; in 1819, the first steamship crossing of the Atlantic Ocean took place and by 1833, shipping lines...

 founded in 1904 as a subsidiary of Rederi AB Nordstjernan

Nordstjernan

Nordstjernan is a Swedish investment company. Nordstjernan is a fourth-generation family company controlled by the Axel and Margaret Ax:son Johnson Foundation. The origin is the shipping company Nordstjernan, which was founded in 1890.-The first generation:...

. In 1982 Johnson Line absorbed Rederi AB Svea

Rederi AB Svea

Stockholms Rederi AB Svea was a Swedish shipping company founded in the 1870s...

, another Rederi AB Nordstjernan -owned company, hence becoming a member of the Finnish-Swedish Silja Line

Silja Line

Silja Line is a Finnish cruiseferry brand operated by the Estonian ferry company AS Tallink Grupp, for car and passenger traffic between Finland and Sweden. The former company Silja Oy – today Tallink Silja Oy – is a subsidiary of Tallink Grupp, handling marketing and sales for Tallink and Silja...

 consortium. Johnson Line ceased existing as an independent company in 1990 when it merged with the fellow Silja Line member to Effoa

Effoa

Finland Steamship Company was a Finnish shipping company founded in 1883 by Captain Lars Krogius. In Finnish and Swedish The company was usually referred to simply as FÅA. In 1976, the company changed its name to Effoa, a phonetic spelling of the abbreviation FÅA.The company was a founding member...

 to form EffJohn.