Stephan Sieber

Stephan Sieber appointed Unit4 CEO

Utrecht, Netherlands, 

Unit4 today announced that Stephan Sieber has been appointed Chief Executive Officer (CEO) with immediate effect. Stephan is currently Unit4’s Executive Vice President, Global Sales and succeeds José Duarte, who has led Unit4 since 2013.

Stephan joined Unit4 in early 2014 as EVP Strategy and Operations and took over the position of Head of Sales mid-2015. Stephan has played an instrumental role in the repositioning and transformation of Unit4 to become a fast growing leader in enterprise applications for service organizations.

Léo Apotheker, Chairman of the Unit4 board comments: “We want to thank José for his achievements over the past three years. He has helped transition Unit4 to become one of the key players in business software for services-centric organizations and we wish him all the best for the next phase of his career. Stephan takes the helm of Unit4 at an exciting time both in terms of the company’s potential and the present market opportunities. He brings both operational and strategic vision to the business and I am delighted to welcome Stephan in his new role.” 

New @Unit4Global CEO Stephan Sieber brings “operational and strategic vision to the business.”

Léo Apotheker, Chairman

Stephan Sieber said: "I am excited and honored to take on this new role within Unit4. The company has created a very unique position in the market over the last three years through its people-centric approach to innovative business software. People productivity and efficiency in service industries have never been more crucial than now and we have the opportunity to deliver a new enterprise software experience to these organizations. I am fortunate to be a part of such a talented and ambitious team and now in the position to lead the company through its next phase.”

After a successful three years at Unit4, José Duarte is stepping down from his position as CEO to pursue other business ambitions outside the enterprise software market.



Ryan Lilly

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Emma Keates

Global PR Manager