He completed his degree in Economics at the University of Cologne in the winter of 1999 and obtained the qualification as a business graduate.

For the first time since the Equestrian and Driving World Championships were founded in 1990, this event succeeded in closing on a positive net result.

After the great success of the FEI World Equestrian Games, the trade magazine "Horizont" elected Michael Mronz as "Sports Manager of the Year".

Up until December 2003, he was shareholder and Managing Director of the American Sports GmbH, under the umbrella of which the first ladies’ and the first men’s team of the German basketball league club, RheinEnergie Cologne, fall.

This idea of the Rhine-Ruhr region putting in a bid to stage the 2028 Summer Olympics is being met with great enthusiasm from economic and political circles.

Mronz took over the Chair of the Westerwelle Foundation in 2016, which asserts itself on an international basis for democracy, the rule of law, the social market economy, tolerance and political and economic participation.