Sirma Group Holding JSC engages in the investment and management of technology businesses. It specializes in strategic, administrative, marketing, and financial services among its subsidiaries. The company was founded by Georgi Parvanov Marinov, Tsvetan Borisov Alexiev, Yavor Lyudmilov Yavor, and Chavdar Velizarov Dimitrov in 1992 and is headquartered in Sofia, Bulgaria.