Budderfly
Facilities ServicesConnecticut, United States201-500 Employees
Budderfly is a facilities services company based in Shelton, Connecticut that focuses on energy efficiency, resilience, and grid participation for the commercial sector. It provides a scalable energy-as-a-service (EaaS) model that removes capital and operational barriers to modernizing energy infrastructure, supported by patented efficiency technologies, equipment upgrades, and proprietary energy software. The company installs, monitors, and manages these solutions for its customers, aiming to reduce carbon footprints, improve reliability, and enhance experiences for customers and employees. Budderfly has been ranked as the fastest-growing EaaS company in the United States and has appeared on rankings such as the Inc. 5000 and Deloitte Technology Fast 500; in 2025 it was named to Fast Company’s Most Innovative Companies list and its CEO Al Subbloie was named to TIME100. It has helped customers avoid more than 330,000 metric tons of carbon emissions and has pursued financing and partnerships to scale its energy infrastructure platform.
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