WE PROMOTE YOUR INTERESTS.
The association
Vision and Mission
The Swiss Data Center Association (SDCA) represents the interests of the Swiss commercial data center operator community.
Our Vision
To provide a platform for Swiss data center operators, commercially and politically, with the overall aim of promoting and developing a sustainable industry.
Our Mission
Actively inform, educate and influence society, economy, and authorities, local, cantonal and federal politics through communications, appearances and public events. Topics include the economic and systemic importance of data centers, the digital infrastructure of everyday’s life in Switzerland.
The association
Values and tasks
SDCA is the association for Swiss data centers and ICT companies involved in data center services. Our focus is to define and promote quality, security and sustainability standards for Swiss data centers. As a recognized association, we provide political advocacy and marketing support for our members.
Our certified members adhere to our quality charter and benefit from the geopolitical stability of Switzerland as a secure location for data storage. We provide a single point of contact for data centers and support in the areas of integration, managed service and connectivity.
Our association consists of a strong alliance of members that span the entire country and meet the highest quality standards. We represent our members’ interests to political authorities, engage in legislative committees and promote industry awareness through public relations.
We also provide a platform for networking, sharing information on market and technology trends, and actively participating in the development of data center standards and research projects.
The stated goal of the SDCA is to make Switzerland more attractive as an investment location, to sustainably improve the framework conditions for the operation of data centers, to stimulate the growth of the industry and to improve the perception of the industry in business, society and politics.
In collaboration with
SDEA
SDCA is fonding member of SDEA.
SDEA is an alliance of industrial and academic organizations that came together to create a unique and integrated approach to DC Efficiency and Emissions Certification.
EDCA
The European Data Centre Association represents the interests of the European commercial data centre operator community. Through our policy work at a European Level we are helping the shape of the data center industry of the future.
CNDCP
SDCA supports the Climate Neutral Data Center Pact. To ensure data centres are an integral part of the sustainable future of Europe, data centre operators and trade associations agree to make data centres climate neutral by 2030.
digitalswitzerland
Digital Switzerland is pursuing the goal of making Switzerland a leading digital nation. SDCA are committed to developing Switzerland into a leading digital nation and a major innovation hub, with data centers playing a central role.
Board members
Who represents us
Sergio Milesi
President
Sergio holds a Master of Science from ETH Zurich and has over 25 years of experience in the ICT industry. He is currently the CEO of GAS&COM, a Swiss fiberoptic backbone provider.
Sergio is well connected with national and international telecom companies and industry associations. He is fluent in four languages.
Yves Zischek
Vice President
Yves Zischek joined Digital Realty as Managing Director Switzerland in May 2022. Previously, he spent 8 years at SBB AG in top management roles, most recently as Head of System Integration Rail Control. Earlier, he held senior positions at Sunrise Communications and Colt Technology Services.
Yves holds a Master of Arts from the University of Zurich and an MBA from the University of Strathclyde, with further studies in digital transformation at IMD Lausanne.
Thomas Diamantidis
Member of the Board
In August 2022, Thomas was appointed Sales and Business Development Director, overseeing all sales and leading the development of future hyperscale data center projects in the region.
Over the past six years, he played a key role in expanding a Swiss data center operator, helping it become the country’s largest cloud compute landlord.
Stefan Mayer
Member of the Board
Stefan has been Managing Director of ColoBâle AG’s data center in Pratteln (BL) for over 10 years.
He holds a degree in computer science engineering from ETH Zurich and previously worked in the financial services industry in roles covering IT security, outsourcing, application development, and operations. In his free time, he enjoys sports.
Roger Semprini
Member of the Board
Roger Semprini joined Equinix in 2016 as Managing Director Switzerland. Previously, he held senior roles at Swisscom, including SVP Strategic Accounts and SVP Sales & Marketing, and was a member of the Executive Board of Swisscom IT Services AG.
With over 25 years of experience in local and international ICT, including ITO and BPO, Roger has played a key role in shaping Switzerland’s ICT industry.
Heiko Siats
Member of the Board
Heiko has 12+ years of experience in business development, sales, and key account management in the facility management sector across the DACH region.
At CBRE Data Center Solutions, he drives client development in Central and Eastern Europe, focusing on identifying needs and creating tailored service solutions for real estate and industrial clients. With over 3,500 experts globally, CBRE offers integrated services across the full data center value chain.
Heiko is married, has three daughters, enjoys jogging, and a good glass of wine or gin.
Roger Sueess
Member of the Board
Roger Sueess is CEO of the Green Group, which includes Green Datacenter AG and Green.ch AG, an ISP for private and SME customers. He brings over 20 years of experience from the financial services industry, having served as Managing Director and Fellow at UBS and Credit Suisse.
He was also responsible for the Swiss and EMEA region and represented the banks on various boards, including the Swiss Banking Association.
Marco Reinhard
Member of the Board
Marco Reinhard is Managing Director of the ewl data center in Lucerne, where he has been operating the most environmentally friendly and secure data center in Central Switzerland since 2020. With over 30 years of experience in the IT and technology industry, he brings extensive expertise in information security, digital infrastructure, and future technologies to the table.
Previously, he was CIO and CISO at Infoniqa SQL AG and, before that, headed the Server & Storage Competence Center at the Schindler Group for almost two decades. Since March 2025, he has been a member of the board of the Local AI Community, working to strengthen Central Switzerland as a hub for innovation in artificial intelligence.
Roberto Cazzetta
Secretary
Roberto Cazzetta is a marketing executive with over 25 years of international experience in IT, cloud, and data centers. As Marketing Director for Equinix in Switzerland, Italy, and Austria, he led key market entries and flagship data center launches.
Fluent in German, Italian, English, and French, he bridges marketing with business development and is passionate about thought leadership and cross-cultural engagement. He holds diplomas in Business Administration and Translation and is currently building a coaching offering focused on leadership and personal development.
Martin Zust
Head of Public Affairs
Martin Zust brings diverse experience across IT, NGOs, and corporate communi-cations. Starting with an IT apprenticeship, he later earned a Bachelor’s in Social Work and gained leadership experience in the NGO sector. Since 2014, he has held senior roles in corporate communications, including Head of Corporate & Brand Communications for Switzerland and Austria, overseeing PR, ESG, public affairs, and live communications.
He holds an MBA and a CAS in Corporate Communi-cation. His unique mix of technical, social, and strategic communication skills makes him a strong leader in sustainability, stakeholder engagement, and strategy.
Martin Zust
Head of Public Affairs
Martin Zust brings diverse experience across IT, NGOs, and corporate communi-cations. Starting with an IT apprenticeship, he later earned a Bachelor’s in Social Work and gained leadership experience in the NGO sector. Since 2014, he has held senior roles in corporate communications, including Head of Corporate & Brand Communications for Switzerland and Austria, overseeing PR, ESG, public affairs, and live communications.
He holds an MBA and a CAS in Corporate Communi-cation. His unique mix of technical, social, and strategic communication skills makes him a strong leader in sustainability, stakeholder engagement, and strategy.
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