STACK Infrastructure is a Denver-based data center developer and operator founded in 2018. The company develops and operates hyperscale data centers and colocation facilities across 24 global markets in the Americas, EMEA, and Asia Pacific regions. STACK is owned by Blue Owl Digital Infrastructure Advisors and operates as a portfolio company focused on delivering digital infrastructure solutions to cloud providers, enterprises, and technology companies. The company's business model centers on campus-scale developments, build-to-suit projects, colocation services, and powered shell solutions designed to support AI/ML workloads and cloud computing requirements. STACK has built or has under development 8.5+ GW of capacity, with an additional 8.5+ GW in planned and potential development. The company maintains operations across the United States, Canada, Europe, and Asia Pacific, with data centers in markets including Northern Virginia, Chicago, Silicon Valley, Portland, Atlanta, Stockholm, Oslo, Copenhagen, Milan, Geneva, Tokyo, Melbourne, Sydney, Singapore, and Malaysia. In April 2025, STACK sold its European colocation business comprising seven data centers to Apollo Global Management in a carve-out transaction, allowing the company to focus on hyperscale development and operations in EMEA. STACK has secured multiple green financing facilities, including $4 billion in March 2025 and $1.4 billion in May 2025, to fund expansion projects across North America and Australia.