* In 1998, [[Alexander Siffrin]] founded Key-Systems GbR (Gesellschaft bürgerlichen Rechts), a civil law partnership company, in Friedrichsthal, Germany. Key-Systems GbR was turned into a limited liability company Key-Systems GmbH (Gesellschaft mit beschränkter Haftung) in 2000. <ref>[http://www.key-systems.net/company/history.php Key-Systems.net]</ref> | * In 1998, [[Alexander Siffrin]] founded Key-Systems GbR (Gesellschaft bürgerlichen Rechts), a civil law partnership company, in Friedrichsthal, Germany. Key-Systems GbR was turned into a limited liability company Key-Systems GmbH (Gesellschaft mit beschränkter Haftung) in 2000. <ref>[http://www.key-systems.net/company/history.php Key-Systems.net]</ref> |