Martin Klenk, cofounder and CTO of Celonis, helped turn a university project into one of Europe’s most valuable software companies by building a global leader in process mining and process intelligence. Since launching Celonis in 2011 with Alexander Rinke and Bastian Nominacher, he has been central to the company’s technical vision, helping scale its platform as major enterprises use it to uncover inefficiencies, optimize operations, and strengthen AI-driven execution. Known for deep product focus and a lower public profile, Klenk stands out as one of the key technical architects behind Celonis’s rise.

Bastian Nominacher, cofounder and co-CEO of Celonis, helped turn a Munich startup into one of Europe’s most valuable software companies by building a global leader in process mining and process intelligence. Since launching Celonis in 2011, he has helped scale the company into a major enterprise software force serving thousands of deployments worldwide, as businesses use its platform to uncover inefficiencies, streamline operations, and make AI more effective in real-world workflows. Known for execution-focused leadership and long-term product conviction, Nominacher has become one of the standout founders in European tech.

Alexander Rinke, cofounder and co-CEO of Celonis, helped turn a university project into one of Europe’s most valuable software companies by building a global leader in process mining and process intelligence. Since cofounding Celonis in 2011, he has guided its rise into a major enterprise software force serving thousands of deployments worldwide, as companies use its technology to uncover inefficiencies, improve operations, and accelerate AI-driven decision-making. Known for product conviction and execution-focused leadership, Rinke has become one of the standout founders in European tech.

Thomas Siebel is the founder and Executive Chairman of C3.ai, a global pioneer in enterprise artificial intelligence software. After establishing Siebel Systems as the leader in the CRM market and selling it to Oracle in 2006, he founded C3.ai in 2009 to provide scalable AI and IoT solutions for industries ranging from energy to defense. In September 2025, Siebel transitioned from CEO to Executive Chairman to focus on long-term strategy and product innovation, following a diagnosis of an autoimmune disease that caused significant visual impairment. A prolific philanthropist, he has donated over $150 million to the University of Illinois at Urbana-Champaign and remains a leading voice on digital transformation and the evolution of "agentic AI" in the corporate world.