We are a multidisciplinary team based in Freienbach near Zurich. Together, we develop unique strategies for our portfolio companies that help them become market leaders in the medium term through both organic and inorganic growth.
Our team - Experienced experts in their field
Meet our team
Board of Directors
He left McKinsey to take over the management of a Swiss paper manufacturer. His task was to restructure the balance sheet of the paper company and to diversify the business within a certain period of time. All operational units were eventually sold to industrial buyers.
In 1997, he joined the leading reinsurance company Swiss Re as Chief Financial Officer and member of the Executive Board Committee. In line with Swiss Re’s growing size and scope, he established the appropriate Group-wide financial governance. Over the years, his responsibilities have included strategic planning, strategic asset allocation and information technology for the Swiss Re Group. He was the initiator and founding chairman of an industry joint venture in the field of electronic risk exchange. In 2004, he left Swiss Re to become an independent investor and consultant.
Christian has a degree in economics and operations research from the University of St. Gallen. During his studies, he also worked as a systems analyst at Fides Informatik and IBM.
Christian has been advising Constellation for several years.
As Director of the Geneva Region, he moved into management roles in Wealth, Asset Management and Trading in 1989. In 1993 he became a member of the Executive Board of Bank Leu in Zurich, where he was responsible for private banking. Bank Leu, the oldest Swiss bank, had been taken over by Credit Suisse in 1990.
Reto became CEO of Bank Leu in 1996 and was additionally appointed to the Executive Board of Credit Suisse Private Banking one year later. The intensification of competition, the rising expectations of shareholders and the drastic tightening of corporate governance regulations led to continued pressure to reorganise the business.
In 2003, Reto joined the Board of Directors of Bank Leu until he retired in 2007 to become an independent advisor and investor. In the course of his career, Reto chaired the board of directors of four Swiss and foreign banks and was a member of the board of directors of various companies. He has been a member of the Board of Directors of Banque Cantonale Vaudoise since 2011 and will be the designated Vice Chairman from 2019.
Reto has been working as a consultant for CONSTELLATION for 12 years. In 2006, he became a member of the Board of Directors.
In his long career, Hans-Peter Diener has worked in the areas of strategy, mergers & acquisitions and finance for international listed companies, successfully leading international companies in various industries as CEO for 18 years. As a CEO in the financial sector (asset management), he broadened his professional horizons. During this time, Hans-Peter Diener was responsible for several successful turnarounds. In recent years, in addition to his work as senior advisor to various boards of directors, he has supported international private equity companies in their portfolio strategy.
After graduating from ETH Zurich and joining a renowned management consultancy, Hans-Peter Diener completed his education with an MBA from Harvard Business School.
Hans-Peter has been a member of the Board of Directors of CONSTELLATION CAPITAL AG since 2018.
Responsible for more than 1,000 employees in various operational functions in Marketing & Sales, Research & Development and Production, he was instrumental in the restructuring, realignment and successful sale of the Mobile Solutions division of the Daimler Benz Group to MATRA Communication, now EADS, in cooperation with Nokia and Alcatel. He then teamed up with the CEO and later Chairman of Bertelsmann Media Group as Deputy Head of Corporate Development before founding and setting up CONSTELLATION.
Rainer values close cooperation with entrepreneurs and business owners. His focus is on management buyouts and buy & build cases in the asset light industry. Due to his passion for entrepreneurial investing, Rainer and the CONSTELLATION team work closely with portfolio companies to build market leaders in fragmented markets.
Rainer studied and conducted research in climatology and nanotechnology at the Swiss Federal Institute of Technology (ETH) in Zurich. He holds international patents in mobile communications and is fluent in German, English and French.
Raffael holds a Bachelor’s degree in Business Administration and a Master’s degree in Banking & Finance from the University of St. Gallen, as well as a CEMS Master’s degree in International Management.
Stefan started his career in 2015 at Wegmüller AG, a renowned family business in Switzerland. He started working as assistant to the CEO and was later promoted to CFO and CPO. He optimised the cost structure of the business as well as the gross profit margin by implementing efficient purchasing processes and reporting systems before taking on new challenges in the private equity industry.
Stefan holds a Bachelor’s degree in Business Administration from the Baden-Württemberg Cooperative State University and completed a CAS in Accounting & Controlling at the University of St. Gallen.
Prior to joining CONSTELLATION, Theresa worked in the capital markets in equities. She began her career in 2012 as a financial analyst in equity research for Bankhaus Lampe in Düsseldorf. There she was responsible for German mid-cap companies in the medical device and pharmaceutical stocks sector. In 2014, Theresa joined HSBC as an Equity Sales Associate, where she sold European equities to institutional investors and was also actively involved in the bookbuilding process for various primary market IPOs.
Theresa holds a Bachelor of Science in Management & Strategy, as well as a Master of Science in Strategy & International Business from Aston University (UK).
Louis joined CONSTELLATION as an investment manager in 2022, having previously worked as an analyst for CONSTELLATION in 2018 after graduating.
Prior to joining CONSTELLATION, Louis worked at a leading multi-family office in Zurich and Singapore, where he was responsible for private market investments and corporate finance advisory. Prior to that, Louis gained experience at a private equity fund specialised in the DACH region in the Zurich area as well as an M&A advisory boutique with a focus on e-commerce & TMT. Louis originally started his career in sales trading at a Swiss investment bank.
Louis holds a Bachelor’s degree from the University of St. Gallen and an MSc in Finance & Investments from the Rotterdam School of Management.
David holds a Bachelor’s degree in Banking & Finance from the University of Zurich.
Anton holds a Bachelor’s degree in Business Administration from the University of St. Gallen with a semester abroad at ESSEC Business School in Paris.
During his bachelor’s degree, he studied business administration at the University of St. Gallen and the Rotterdam School of Management.
Beat holds a Master’s degree in Economics from the University of Zurich. Zudem hat er zwei Executive Education Programme an der INSEAD Business School in “Strategic Issues in Mergers & Acquisitions” und “Competitive Strategy” absolviert.