Board of Directors

Dr. Till Spillmann

Function: Chairman

Role: Non-executive, independent

Committee Membership: Audit and Nomination and Compensation Committee

Till Spillmann has been a member of the Board of Directors of SoftwareOne Holding AG since 2024, and Chairman since May 2025.

Till Spillmann is a renowned legal, capital markets, M&A and investment expert. He is a partner at Argon Management, a private investment firm, which he co-founded in 2024. In 2014, he also co-founded Actium, an independent investment company investing in real estate, private equity and private debt and offering related structuring solutions. Till was previously a partner at Niederer Kraft Frey, as well as managing partner at Baer & Karrer. He started his career at McKinsey and Company. 

He currently serves as Chairman of the Board of Directors at Actium Ltd, as well as a member of the Board of Directors at Argon Management AG, amongst others. In addition, he also serves as Chairman of the Board of Directors at ImmoMentum AG, the real estate investment vehicle at Actium AG.

Till obtained a doctorate in law from the University of Zurich in 2004 and was admitted to the bar in Switzerland in 2006. He was born in 1977 and is a Swiss citizen.

Daniel von Stockar

Function: Member

Role: Non-executive

Committee Membership: Audit Committee

Daniel von Stockar has been the Chairman of the Board of Directors of SoftwareOne Holding AG between 2013 and 2023.

He is also the owner and Chairman of the Board of Directors of von Stockar Immobilien AG and the Chairman of the Board of Directors of Pro Domi AG.

Daniel von Stockar is a Swiss citizen and received his Master's degree in Economics from the University of Zurich in 1990, and his Doctorate in 1995.

Andrea Sieber

Function: Lead Independent Director

Role: Non-executive, independent

Committee Membership: Chair of Nomination and Compensation Committee

Andrea Sieber is a renowned legal, mergers and acquisitions, as well as corporate governance expert. She is a partner at the Swiss law firm MLL Legal AG, where she started her career in 2003 and specializes since twenty years on national and cross-border M&A, private equity and capital market transactions and advises clients on corporate governance topics and general corporate and commercial laws. She co-leads the firm's M&A Practice Group since 2015 and served as CFO in the firm’s management board from 2021 to 2023.

Since 2016 until today she serves as Vice Chairwoman of the Board of Directors of Allreal Holding AG, a publicly listed real estate company in Switzerland, and heads Allreal's Nomination and Compensation committee. From 2011 to 2017 she served as Chairwoman of the Supervisory Board of Roth & Rau AG (today: Meyer Burger Germany GmbH), a formerly publicly listed German company.

In addition, she serves as member of the Board of Directors of four other private Swiss companies.

Andrea Sieber holds law degrees from the University of St. Gallen law school (lic. iur. HSG) and the University of California, Davis, school of law (LL.M.) and is admitted to the Swiss bar since 2003. She was born in 1976 and is a Swiss citizen.

Rene Gilli

Function: Member

Role: Non-executive

Committee Membership: Nomination and Compensation Committee

Rene Gilli’s broad experience in the industry as well as his contribution to the company as a founding shareholder of SoftwareOne Holding AG make him a valuable addition to the Board of Directors. Rene Gilli has a long track record at the company having co-founded the firm by merging his company, MicroWare (founded 1992), with Softwarepipeline in 2005 and thus paving the way for a successful founding of SoftwareOne in 2006. Additionally, he was a member of the Board of Directors 1992 to 2005 at MicroWare, 2005 to 2006 at Softwarepipeline and 2013 to 2022 at SoftwareOne.

He currently serves as Chair of the Board of Directors at Alivant AG.

Rene Gilli holds a degree in Economics and Information Technology of the Business IT School/ School of Economics and Business Administration of Lucerne (today Lucerne University of Applied Sciences and Arts). He was born in 1958 and is a Swiss citizen.

Jörg Riboni

Function: Member

Role: Non-executive, independent

Committee Membership: Chair of Audit Committee

Jörg Riboni is a renowned finance and audit expert with international experience. He has an extensive track record as CFO and has served on the Board Directors of several companies. Jörg Riboni was the CFO of Emmi AG from 2013 to 2019, the CFO of Forbo Holding AG from 2005 to 2012, the CFO of Sarna Group from 1997 to 2005 and CFO of Jelmoli AG from 1995 to 1997. Before that, he was Chief Financial and Administrative Officer at Lacoray Group (Cosa Liebermann) from 1991 to 1995. He served on the expert commission of the Swiss stock exchange SIX from 1999 to 2010 and was a member of the Swiss GAAP FER Commission from 1999 to 2006. Jörg Riboni started his career as an auditor at Peat, Marwick, Mitchell & Co from 1985 to 1988, subsequently served at Deloitte & Touche from 1988 to 1991. He has prior experience with enterprise software services through his time on the Board of ERNI AG, a Swiss software engineering company. Additionally, he has served on the Special Expert Committee of Sika AG and was Board member and Chair of the Audit Committee at Hochdorf Holding AG and ARYZTA AG.

He is currently the Chairman of the Board of Directors at Rothorn Group AG, a Board member and Chair of the Audit Committee at HERITAGE B B.V. and serves on the Board of Glas Troesch AG.

Jörg Riboni holds a degree in Economics from the University of St. Gallen and received his CPA in 1990. He was born in 1957 and is a Swiss citizen.