C Company (Russian: Фирма "1С") is one of the largest independent Russian software developers and publishers. Its headquarters are in Moscow, Russia. It is best known outside of the former Soviet Union as a video game developer; however, in the internal Russian market 1C is an obvious leader in business software as well. 1C's comprehensive business software suite 1C:Predpriyatiye (1C:Enterprise) has held an overwhelming market share for over a decade. 1C is also a leader in localizing and publishing Russian-language versions of international software.