Celonis, the market leader in AI-enhanced Process Mining and Process Excellence software, has raised approximately $290 million in Series C funding, valuing the company at $2.5 billion. Leading global enterprises including 3M, Airbus, Danaher, L’Oréal, Lufthansa, Siemens, and Uber rely on Celonis to improve the efficiency of their finance, supply chain, IT, sales, and customer service functions.  Arena Holdings led the round alongside a group of principal investors and established entrepreneurs who have successfully scaled profitable, high-growth businesses.