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SF Line

SF Line was a Finnish shipping company that became the sole corporate operator behind Viking Line and adopted the Viking Line name in 1995.

Last updated August 31, 2026

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Overview

SF Line was a Finnish ferry company based in Åland and one of the three original corporate participants in the Viking Line marketing organisation. Its corporate predecessor, Rederi Ab Ålandsfärjan, emerged in the early 1960s after a disagreement among the founders of Rederi Ab Vikinglinjen. The new company acquired the steamer Brittany, renamed it Ålandsfärjan, and began competing on the route between Kapellskär in Sweden and Mariehamn in Åland. In 1966, Rederi Ab Ålandsfärjan joined Rederi Ab Vikinglinjen and Rederi AB Slite to establish Viking Line as a shared marketing organisation. The arrangement enabled the three otherwise separate shipping companies to market ferry services collectively while competing with Silja Line in the Baltic Sea. The companies also ordered new vessels, helping expand passenger and vehicle ferry services between Finland, Åland, and Sweden. Rederi Ab Ålandsfärjan changed its name to SF Line in 1970. The initials referred to Sverige, the Swedish word for Sweden, and Finland, reflecting the company's cross-Baltic operating geography. Its fleet included both passenger ferries and roll-on/roll-off-capable vessels serving routes linking Sweden, Åland, and Finland. The company's first newbuild, MS Kapella, entered service in 1967. Later ships such as Marella, Aurella, Turella, Rosella, Mariella, Amorella, Isabella, Cinderella, and Gabriella formed part of the fleet associated with SF Line and the wider Viking Line network. Several vessels were given names ending in “-ella” in reference to Ellen Eklund, the wife of Gunnar Eklund, one of the figures associated with the company's origins. SF Line's role within Viking Line changed as the other founding companies departed or failed. Rederi Ab Vikinglinjen left the organisation in 1988. Rederi AB Slite entered bankruptcy in 1993. SF Line therefore became the only remaining corporate member of the Viking Line marketing structure. In 1995, it changed its own name to Viking Line, bringing the SF Line corporate identity to an end while continuing the ferry business under the better-known Viking Line name. The company is therefore best understood as both a historical shipping company and a predecessor of the modern Viking Line corporate identity. It was not a conventional consumer product brand: its public presence was built around ferry routes, vessels, onboard services, and the shared Viking Line marketing name. The surviving historical significance of SF Line lies in its contribution to the development of regular passenger and vehicle ferry links across the northern Baltic and in its eventual consolidation of Viking Line's operating structure.

History

SF Line's roots lay in the early development of ferry links between Sweden, Åland, and Finland. Rederi Ab Vikinglinjen was founded in 1959 and began operating between Gräddö in Sweden and Korppoo in Finland with the vessel Viking, formerly named Dinard. A disagreement among the company's founders led Gunnar Eklund and others to establish a separate company, Rederi Ab Ålandsfärjan. That company acquired the steamer Brittany, renamed it Ålandsfärjan, and introduced a competing service between Kapellskär and Mariehamn. The two companies' rivalry did not prevent later cooperation. In 1966, Rederi Ab Ålandsfärjan, Rederi Ab Vikinglinjen, and Rederi AB Slite created Viking Line as a joint marketing organisation. The purpose was to present a stronger collective alternative to Silja Line in the Baltic ferry market. Each company remained a distinct shipping business, but the shared name allowed them to market routes and vessels more effectively. The participating companies subsequently ordered new ships and expanded passenger and vehicle ferry capacity. Rederi Ab Ålandsfärjan changed its name to SF Line in 1970. The new initials represented Sverige and Finland, highlighting the company's links across the two national markets. SF Line's fleet developed through a succession of purpose-built and acquired ferries. MS Kapella entered service in 1967 as the company's first new ship, followed by vessels including Marella, Aurella, Turella, Rosella, Mariella, Ålandsfärjan, Amorella, Isabella, Cinderella, and Gabriella. The naming of several ships with the suffix “-ella” commemorated Ellen Eklund, Gunnar Eklund's wife. The structure of Viking Line changed substantially during the late twentieth century. Rederi Ab Vikinglinjen left in 1988. Rederi Ab Solstad had previously merged into Rederi Ab Sally in 1970, and EffJohn, the owner of Silja Line, acquired Rederi Ab Sally in 1987. SF Line and Rederi AB Slite continued the Viking Line operation without Rederi Ab Sally. When Rederi AB Slite went bankrupt in 1993, SF Line became the sole remaining company from the original Viking Line group. In 1995, SF Line changed its corporate name to Viking Line. This ended SF Line as a separate operating identity and consolidated the business under the Viking Line name. Later vessels associated with the continuing Viking Line operation included Viking XPRS, Viking Grace, and Viking Glory, although these ships belong to the subsequent Viking Line era rather than the historical SF Line brand itself. SF Line's historical importance is consequently tied to the creation and consolidation of a major Baltic ferry network rather than to a continuing standalone brand.

  • 1995

    SF Line becomes Viking Line

    [1]

    The company changes its name to Viking Line, ending the standalone SF Line identity.

  • 1993

    Rederi AB Slite enters bankruptcy

    [1]

    SF Line becomes the only remaining company from Viking Line's original three-company operating structure.

  • 1988

    Rederi Ab Vikinglinjen departs

    [1]

    The first of the other founding companies leaves Viking Line.

  • 1970

    The SF Line name is adopted

    [1]

    Rederi Ab Ålandsfärjan changes its name to SF Line.

  • 1967

    MS Kapella enters service

    [1]

    SF Line's first new ship enters service.

  • 1966

    Viking Line is formed

    [1]

    Rederi Ab Ålandsfärjan, Rederi Ab Vikinglinjen, and Rederi AB Slite establish Viking Line as a joint marketing organisation.

  • 1963

    Ålandsfärjan enters the fleet

    [1]

    The vessel SS Ålandsfärjan is listed among the early ships associated with the company's development.

  • 1959

    Rederi Ab Vikinglinjen is founded

    [1]

    The company that later contributed to the Viking Line structure begins ferry operations between Sweden and Finland.

Products and positioning

A Finnish-Ålandic passenger and vehicle ferry operator positioned around regular cross-Baltic links between Sweden, Åland, and Finland, initially marketed alongside other companies under the Viking Line name.

  • Passenger ferry transportation

    Baltic passenger ferry services

    SF Line operated scheduled passenger ferry services linking Sweden, Åland, and Finland. The business combined transportation with the broader onboard ferry experience associated with Baltic Sea travel. Its services were marketed through the Viking Line organisation from 1966 onward, allowing the company to participate in a network larger than its own corporate identity.

  • Vehicle ferry transportation

    Roll-on/roll-off ferry services

    The company's fleet included vessels capable of carrying vehicles alongside passengers, supporting regular cross-Baltic movement between Sweden, Åland, and Finland. This passenger-and-vehicle model was central to the Viking Line network and distinguished the company from a purely passenger excursion operator.

Brand decisions

  • 1995

    Consolidate under the Viking Line nameStrategy

    Background

    After Rederi Ab Vikinglinjen had left Viking Line and Rederi AB Slite had entered bankruptcy, SF Line was the only remaining company from the original three-company structure.

    Action taken

    SF Line changed its name to Viking Line.

    Aftermath

    The SF Line identity was discontinued and the business continued under the Viking Line name.

  • 1970

    Rename the company SF LineStrategy

    Background

    The predecessor company had operated under the Rederi Ab Ålandsfärjan name while serving routes connected with Sweden and Finland.

    Action taken

    The company changed its name to SF Line, using initials associated with Sverige and Finland.

    Aftermath

    SF Line became the company's principal corporate identity until its later adoption of the Viking Line name.

  • 1966

    Form a shared Viking Line marketing organisationStrategy

    Background

    SF Line's predecessor operated in a competitive Baltic ferry market in which Silja Line was a significant rival. Cooperation with Rederi Ab Vikinglinjen and Rederi AB Slite offered a common commercial identity while the companies continued as separate operators.

    Action taken

    Rederi Ab Ålandsfärjan joined the two other companies in establishing Viking Line as a joint marketing organisation and participated in subsequent fleet expansion.

    Aftermath

    The arrangement created the foundation for the Viking Line network and gave SF Line a lasting association with that brand.

    • Silja Line — Viking Line was established in competition with Silja Line; no specific public response is identified in the supplied source.

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