Leissner, established in 1969, is a renowned IT development company in Sweden. We are developing communication solutions for telecom operators and have contributed to standards and innovations in telecommunications. Our vision is to contribute in breaking up the dominance of large telecom operators by delivering cost-efficient software and establish interoperability for new, fast growing independent operators. Leissner’s strength is the flexible and customer oriented development of new and existing functionality for operators in the telecommunications industry. Leissner has over the years maintained a good track record of delivering stable and secure software for telecom operators. The Leissner product family includes traditional telecom systems and a MVNE/MVNO core platform. All systems are developed by Leissner employees in Sweden. Leissner Group has offices in Trollhättan and Gothenburg, Sweden.