What is the Uptime Institute?

The Uptime Institute is the global authority on data centre reliability, best known for its Tier Classification System (Tiers I-IV). Founded in 1993, it has certified over 3,000 facilities across 120+ countries. Uptime offers three distinct certifications: Tier Certification of Design Documents (paper review), Tier Certification of Constructed Facility (on-site verification), and Tier Certification of Operational Sustainability (ongoing operational assessment renewed every three years). A common misconception is that facilities are "Tier III" just because they have N+1 redundancy — without formal Uptime certification, that claim is marketing, not verified fact. Certification costs $50,000-150,000+ depending on tier level and facility size.