Budderfly

Facilities ServicesConnecticut, United States201-500 Employees

Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector. Under the leadership of CEO Al Subbloie, the company has pioneered a scalable Energy-as-a-Service (EaaS) model that removes capital and operational barriers preventing commercial businesses from modernizing their energy infrastructure and maximizing the benefits of the energy transition. 

Ranked as the fastest-growing Energy as a Service (EaaS) company in the United States, Budderfly installs, monitors, and manages a combination of patented efficiency technologies, including equipment upgrades and proprietary energy software, for its customers. Businesses benefit from capital preservation, reduced carbon footprint, more reliable operations, and improved customer and employee experience.  

To date, Budderfly has helped customers avoid more than 330,000 metric tons of carbon emissions. Budderfly ranked on the Inc. 5000 America’s Fastest-Growing Private Companies list for five consecutive years and the Deloitte Technology Fast 500 list from 2023 to 2025. In 2025, Budderfly was named to Fast Company’s worldwide list of Most Innovative Companies, CEO Al Subbloie was named to the TIME100 list of the world’s most influential climate leaders, and Budderfly’s Virtual Power Plant was named one of TIME’s Best Inventions.

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