Board Committees

Dagmar Kollmann is Chairperson of Citigroup Global Markets Europe AG. She is a member of the Supervisory Board and Chairperson of the Audit Committee of Deutsche Telekom AG, member of the Supervisory Boards of Unibail-Rodamco-Westfield SE and of Coca Cola European Partners. Previously, she has been Deputy Chairperson of the Supervisory Board and Chairperson of the Audit Committee of Deutsche Pfandbriefbank AG, Deputy Chairperson of the Supervisory Board as well as Chairperson of the Audit Committee of Hypo Real Estate Holding AG, and a member of the Supervisory Boards of KfW-IPEX Bank GmbH and Bank Gutmann AG.

Dagmar is a Commissioner in the Monopolies Commission in Germany, a permanent and independent expert committee, which advises the German government and legislature in the areas of competition policy-making, competition law and regulation. Its reports are published.

Previously, Dagmar was CEO of Morgan Stanley Bank AG in Frankfurt. In addition to her role as CEO and Country Head for Germany and Austria, she was a member of the Boards of Directors of Morgan Stanley International Ltd. and Morgan Stanley & Co International, Ltd. in London.

Prior to joining Morgan Stanley, Dagmar worked at UBS Philips & Drew Ltd, both in M&A and subsequently in the Equities Division. Past mandates include a membership in the Advisory Board of the EUREX Group and the role of “Sherpa” in the “Initiative Finanzplatz Deutschland.”

She holds a Master Degree in Law from the University of Vienna.

Mark Brooker has served as a member of the Company Board since 2021.  

Mr. Brooker was previously Chief Operating Officer for Trainline, Europe’s largest independent retailer of rail and coach tickets.  Before Trainline, he was Chief Operating Officer of Betfair Group PLC, a leading online gambling operator and now part of Flutter Entertainment. In his earlier career, Mr. Brooker spent 17 years in investment banking working for Morgan Stanley, Merrill Lynch, NatWest and NM Rothschild & Sons.  

Mr. Brooker also brings a diverse range of Non-Executive Board Director experience and currently sits on the boards of  eCogra Holdings Limited, an independent software testing agency for the online gaming industry, where he is Chairman, Future PLC, a global platform for specialist media and member of the FTSE250, Resi Design Limited, a UK architecture practice (Chairman), and Heathrow Airport Holdings Limited. He also served as a Non-Executive Director of William Hill PLC, one of the largest gambling operators in the UK, before the Board was dissolved following its acquisition by Caesars Entertainment in April 2021. He has also previously been a non-executive director of AA plc, Equiniti Group plc, Findmypast Limited and Seedrs Ltd.

Mr. Brooker holds a Master’s Degree in Engineering, Economics and Management from Oxford University in the UK.

Marianne Heiss is an expert in finance, accounting, auditing, international management, brand building and ESG with extensive international experience and a long on-going track record of sustainable and efficient strategic leadership.

Marianne spent the last 27 years in various European management positions at BBDO Worldwide, most recently as Chief Executive Officer of BBDO Group Germany from 2019 to 2023. Prior to her appointment as CEO in 2019, she played a key role in the success of BBDO Group Germany as Chief Financial Officer from 2013 to 2019. Before Marianne moved to Germany she was European Finance Director, responsible for 35 offices in 18 European countries.

Marianne was the first woman to lead BBDO Group Germany, which was founded in 1956, in the German market. The BBDO Group unites numerous leading agency brands, including consultancy, digital and design agencies in Berlin, Düsseldorf, Frankfurt, Hamburg and Munich. She was also a member of BBDO's international board in New York and represented all BBDO agencies worldwide on the global Environmental Sustainability Core Team of Omnicom Inc. based in New York. Marianne served as Vice President of the German GWA from 2015 to 2017.

Born in Austria, Marianne studied Business Accounting and Management in Wiener Neustadt and spent her early years in finance. Since 2018, she has been a member of the supervisory boards of Volkswagen AG, Audi AG and Porsche SE. At Porsche SE, she is also the ESG (Environmental, Social and Governance) expert on the Supervisory Board and at Volkswagen AG, she is also a member of the Audit Committee. Ms. Heiss is also a member of the advisory board of Alfred Ritter GmbH & Co KG (Ritter Sport). Since April 2025, she has been a member of the supervisory board of Palfinger AG. From June 2023 to October 2024, she was a member of the supervisory board of Flix SE and head of the Audit Committee.

Daniel Henson has served as a member of the Company Board since 2022. Mr. Henson currently serves as non-executive chairman of IntraFi Network (formerly Promontory Intrafinancial Network), a leading provider of deposit placement services operating in the Washington D.C. area. Previously, Mr. Henson served as non-executive chairman of Tempo Holdings until its merger and subsequent listing as Alight Inc in July of 2021 and served as the non-executive chairman of Alight Inc until March 2025. He also served as non-executive chairman of Exeter Finance, a leading auto finance company headquartered in Irving, TX. Previously, Mr. Henson served as a Director of Healthcare Trust of America and OnDeck Capital.

Mr. Henson worked with the General Electric Company for 29 years and held a variety of senior positions at GE and GE Capital, including Chief Marketing Officer of GE and Six Sigma Quality Leader at GE Capital. He also served as the CEO of a number of GE Capital’s financial services businesses in the U.S. and internationally.

Starting in 2008, Mr. Henson was responsible for all GE Capital commercial leasing and lending businesses in North America. From 2009 to 2015, Mr. Henson also oversaw capital markets activities at GE Capital and GE Capital’s industrial loan company bank in Utah.

Mr. Henson holds a B.B.A. in Marketing from George Washington University.

Matthew is a Managing Director at CVC, based in London. He joined CVC in 2019 and is a member of the financial services group. Prior to joining CVC, he worked at Bain Capital in London. Matthew holds a master's degree in physics from the University of Oxford.

Dagmar Kollmann is Chairperson of Citigroup Global Markets Europe AG. She is a member of the Supervisory Board and Chairperson of the Audit Committee of Deutsche Telekom AG, member of the Supervisory Boards of Unibail-Rodamco-Westfield SE and of Coca Cola European Partners. Previously, she has been Deputy Chairperson of the Supervisory Board and Chairperson of the Audit Committee of Deutsche Pfandbriefbank AG, Deputy Chairperson of the Supervisory Board as well as Chairperson of the Audit Committee of Hypo Real Estate Holding AG, and a member of the Supervisory Boards of KfW-IPEX Bank GmbH and Bank Gutmann AG.

Dagmar is a Commissioner in the Monopolies Commission in Germany, a permanent and independent expert committee, which advises the German government and legislature in the areas of competition policy-making, competition law and regulation. Its reports are published.

Previously, Dagmar was CEO of Morgan Stanley Bank AG in Frankfurt. In addition to her role as CEO and Country Head for Germany and Austria, she was a member of the Boards of Directors of Morgan Stanley International Ltd. and Morgan Stanley & Co International, Ltd. in London.

Prior to joining Morgan Stanley, Dagmar worked at UBS Philips & Drew Ltd, both in M&A and subsequently in the Equities Division. Past mandates include a membership in the Advisory Board of the EUREX Group and the role of “Sherpa” in the “Initiative Finanzplatz Deutschland.”

She holds a Master Degree in Law from the University of Vienna.

Jonathan Murphy joined Blackstone in 2021 and is a Managing Director in the firm’s Private Equity Group, where he focuses on investments in the technology and financial technology industries.

Prior to Blackstone, Jonathan spent over eight years at Francisco Partners, a U.S.-based private equity fund that focuses on investments in the technology industry. While at Francisco Partners, Jonathan was involved in the firm’s investments in Civitas Learning, Dynamo Software, eFront, Lucidworks and Operative.

Before joining Blackstone, Jonathan worked at CPPIB in the Direct Investment Group and Morgan Stanley in the Investment Banking Division.

Jonathan received a Bachelor of Commerce from University College Dublin where he graduated with First Class Honors.

Daniel Henson has served as a member of the Company Board since 2022. Mr. Henson currently serves as non-executive chairman of IntraFi Network (formerly Promontory Intrafinancial Network), a leading provider of deposit placement services operating in the Washington D.C. area. Previously, Mr. Henson served as non-executive chairman of Tempo Holdings until its merger and subsequent listing as Alight Inc in July of 2021 and served as the non-executive chairman of Alight Inc until March 2025. He also served as non-executive chairman of Exeter Finance, a leading auto finance company headquartered in Irving, TX. Previously, Mr. Henson served as a Director of Healthcare Trust of America and OnDeck Capital.

Mr. Henson worked with the General Electric Company for 29 years and held a variety of senior positions at GE and GE Capital, including Chief Marketing Officer of GE and Six Sigma Quality Leader at GE Capital. He also served as the CEO of a number of GE Capital’s financial services businesses in the U.S. and internationally.

Starting in 2008, Mr. Henson was responsible for all GE Capital commercial leasing and lending businesses in North America. From 2009 to 2015, Mr. Henson also oversaw capital markets activities at GE Capital and GE Capital’s industrial loan company bank in Utah.

Mr. Henson holds a B.B.A. in Marketing from George Washington University.

Mark Brooker has served as a member of the Company Board since 2021.  

Mr. Brooker was previously Chief Operating Officer for Trainline, Europe’s largest independent retailer of rail and coach tickets.  Before Trainline, he was Chief Operating Officer of Betfair Group PLC, a leading online gambling operator and now part of Flutter Entertainment. In his earlier career, Mr. Brooker spent 17 years in investment banking working for Morgan Stanley, Merrill Lynch, NatWest and NM Rothschild & Sons.  

Mr. Brooker also brings a diverse range of Non-Executive Board Director experience and currently sits on the boards of  eCogra Holdings Limited, an independent software testing agency for the online gaming industry, where he is Chairman, Future PLC, a global platform for specialist media and member of the FTSE250, Resi Design Limited, a UK architecture practice (Chairman), and Heathrow Airport Holdings Limited. He also served as a Non-Executive Director of William Hill PLC, one of the largest gambling operators in the UK, before the Board was dissolved following its acquisition by Caesars Entertainment in April 2021. He has also previously been a non-executive director of AA plc, Equiniti Group plc, Findmypast Limited and Seedrs Ltd.

Mr. Brooker holds a Master’s Degree in Engineering, Economics and Management from Oxford University in the UK.

Mark Brooker has served as a member of the Company Board since 2021.  

Mr. Brooker was previously Chief Operating Officer for Trainline, Europe’s largest independent retailer of rail and coach tickets.  Before Trainline, he was Chief Operating Officer of Betfair Group PLC, a leading online gambling operator and now part of Flutter Entertainment. In his earlier career, Mr. Brooker spent 17 years in investment banking working for Morgan Stanley, Merrill Lynch, NatWest and NM Rothschild & Sons.  

Mr. Brooker also brings a diverse range of Non-Executive Board Director experience and currently sits on the boards of  eCogra Holdings Limited, an independent software testing agency for the online gaming industry, where he is Chairman, Future PLC, a global platform for specialist media and member of the FTSE250, Resi Design Limited, a UK architecture practice (Chairman), and Heathrow Airport Holdings Limited. He also served as a Non-Executive Director of William Hill PLC, one of the largest gambling operators in the UK, before the Board was dissolved following its acquisition by Caesars Entertainment in April 2021. He has also previously been a non-executive director of AA plc, Equiniti Group plc, Findmypast Limited and Seedrs Ltd.

Mr. Brooker holds a Master’s Degree in Engineering, Economics and Management from Oxford University in the UK.

Daniel Henson has served as a member of the Company Board since 2022. Mr. Henson currently serves as non-executive chairman of IntraFi Network (formerly Promontory Intrafinancial Network), a leading provider of deposit placement services operating in the Washington D.C. area. Previously, Mr. Henson served as non-executive chairman of Tempo Holdings until its merger and subsequent listing as Alight Inc in July of 2021 and served as the non-executive chairman of Alight Inc until March 2025. He also served as non-executive chairman of Exeter Finance, a leading auto finance company headquartered in Irving, TX. Previously, Mr. Henson served as a Director of Healthcare Trust of America and OnDeck Capital.

Mr. Henson worked with the General Electric Company for 29 years and held a variety of senior positions at GE and GE Capital, including Chief Marketing Officer of GE and Six Sigma Quality Leader at GE Capital. He also served as the CEO of a number of GE Capital’s financial services businesses in the U.S. and internationally.

Starting in 2008, Mr. Henson was responsible for all GE Capital commercial leasing and lending businesses in North America. From 2009 to 2015, Mr. Henson also oversaw capital markets activities at GE Capital and GE Capital’s industrial loan company bank in Utah.

Mr. Henson holds a B.B.A. in Marketing from George Washington University.