Leissner Data is one of the oldest IT companies in Sweden and has delivered innovative communication solutions for operators and organizations since 1969.
Over the years, Leissner has become a renowned company in the industry for our expertise and contributed to a number of standards and innovations in IP and telecommunications.
Leissner is part of a company group that also includes Götalandsnätet (using the brand Gotanet) – an established Swedish operator with a product portfolio that includes broadband, fixed, IP and mobile telephony to B2C and B2B. Gotanet is also mobile MVNE and offers MVNO/SP services to innovated operators.
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. We have over the years maintained a good track record of delivering stable and secure software for telecom operators.
Leissner office is located in Trollhättan, Sweden.
Milestones in Leissner company group
Cellhire launch mobile services in France using Leissner MVNO SaaS.
Leissner becomes MVNE partner with Hi3G Denmark.
Celebrates 50 years in the IT industry.
More than 10 MVNOs installed on Leissner core software.
First mobile core installation outside Sweden.
The mobile platform offers complete MVNE functionality.
Leissner's first full MVNO setup together with Hi3G Access in Sweden.
Interconnection agreements for SMS in Sweden and started development of systems for SMS.
Leissner Telecom Billing system was introduced to the Swedish market.
Started development of systems for telephony.
The company group became a telecom operator and signed fixed telephone interconnection agreements with Telia.
Strategical decision to be a telco system supplier.
Gotanet was one of the first actors in Sweden to offer ADSL access services using Telia telecommunications stations.
Götalandsnätet AB was founded with the brand Gotanet acting as Internet Service Provider (ISP).
Obtained the first mainframe, SAAB D22.
Leissner Data AB was founded.
Leissner Management Team
VP Product Manager
Senior Technical Sales