Sumo Group announces leadership changes, co-founders step down Carl Cavers, Paul Porter, and Darren Mills retiring, COO Gary Dunn and CFO Andy Stewart appointed as co-CEOs Image credit: Sumo Group News by Sophie McEvoy Staff Writer Published on May 9, 2025 Sumo Group has announced the departure of its co-founders CEO Carl Cavers, COO Paul Porter, and director of excellence and integration Darren Mills. Cavers, Porter, Mills, and James North-Hearn founded Sumo Digital in 2003. All four were part of Infogrames Studio's management team, which closed its doors that same year. "Stepping away from something we've built over two decades is never easy, but it's the right time," said Cavers. "We're incredibly proud of what we've achieved together, and we're confident that Sumo is in a strong position to continue evolving and thriving." COO Gary Dunn and CFO Andy Stewart are to become co-CEOs as part of Sumo Group's leadership transition. Tim Repa-Davies will move to Sumo's board of directors, and continue his role as group general counsel head of legal business and affairs. "This is a natural evolution for Sumo," said Stewart. "We're staying true to who we are, building on a strong foundation, and looking ahead with clarity and purpose. We're excited about what's next." Dunn added: "At our heart, Sumo has always been about creativity, collaboration, and making great games people love to play. That's what drives our teams, and that's what we're committed to as we look to the future. We're proud of our legacy and excited for what's still to come." Sumo clarified that it is "reinforcing its commitment to its clients by focusing on work-for-hire services" and that it has made the "necessary adjustments to stabilise the business and focus on long-term success." Earlier this year, Sumo announced it would refocus its business to cater its development services to its partners. This resulted in restructuring and an unknown number of layoffs. Last June, the company cut 15% of its workforce resulting in almost 250 people losing their jobs.