By acquiring complementors, digital platform owners can facilitate rapid advances in the evolution of their platform ecosystems. We describe how Salesforce has successful¬ly evolved its platform ecosystem through the acquisition of complementors. Based on insights from the Salesforce case, we provide recommendations for acquiring comple¬mentors, aligning acquisitions with the platform owner’s proprietary developments, integrating the acquired complementors and retaining the coherency of the platform’s offerings even after diverse acquisitions.