M&J has been on the Bulgarian market since 1991. The company's main business is design and installation of security systems - CCVE, access control and alarm systems, as well as installation and maintenance of car air conditioning systems and HiFi equipment.

1999 M&J moved into its newly built office buildings on Rogoshko shosse 6^b, 4000 Plovdiv. Currently 18 highly qualified specialists work for the company.