Your contact persons at much-net

Please choose the appropriate contact person at much-net from the list below.

Nikolai Bukureschtliew

Majority Shareholder and Head of the Supervisory Board

Nikolai Bukureschtliew studied mathematics in Sofia and Cologne focusing on financial and insurance mathematics. He acquired knowledge in computer science and information technology through self-study. In 1982, he founded the Much-Net data processing company and turned it into one of the leading system producers for financial service providers (such as banks, investment companies, insurance companies and corporate treasury departments) in Europe. The company was transformed into Much-Net GmbH in 1989 and has been registered as much-net AG since May 2000. Nikolai Bukureschtliew was chairman of the management board until 2013. In 2013, he became head of the supervisory board alongside the supervisory board members Frank Burow, Rüdiger Thiele and Bernd Zugenbühler. Also in this position, he will continue to be a contact person for customers, potential buyers, cooperation partners and employees.

Contact Nikolai Bukureschtliew


Olgo-Kryno Geissler

Chief Financial & Sales Officer

Olgo-Kryno Geissler is merchant in wholesale and international trade (Groß- und Außenhandelskaufmann), studied business administration with a focus on "Company Taxation and Auditing" and worked in different industries (computer production and sales, film licence exploitation, production of spectacles and an opticians group) before he was business administration manager and authorised officer at much-net AG from 2000 to 2012. In March 2013 he became a member of the executive board of much-net AG. His fields of responsibility include contracts, billing (services and other expenditures), finances and controlling, human resources etc.


Contact Olgo-Kryno Geissler

Andreas Siebert

Chief Development & Services Officer

Andreas Siebert has been working for much-net AG since 2006 and became a member of the executive board in 2016. He is in charge of development and services and the main contact person for all national and international projects of much-net AG. His fields of responsibility range from consulting services in all PMS-relevant matters, analyses of customer needs and development of requirements specifications to project and integration management and customisation of PMS to specific customer needs. A special focus lies on the interface management such as the Bloomberg interface. Andreas Siebert has many years of experience in the provision of finance-related IT services.

Contact Andreas Siebert

Thomas Weise

Key Account Manager / Sales

Thomas Weise has joined our sales team in 2016 and is in charge of sales and of the implementation of new sales and marketing strategies. Before that he studied economics in Cologne and Melbourne (Australia) with a focus on Economics and Strategic Marketing. Prior to his studies, Thomas Weise worked for a British insurance group in Hamburg, Cologne, Munich and London.

Contact Thomas Weise