When most people talk about the energy transition, it sounds like they’re pitching a TED Talk no one asked for. But Shelton, Connecticut-based Budderfly isn’t pitching, they’re installing, optimizing, financing, and scaling. While other companies theorize about sustainability, Budderfly’s out here converting 5,000+ commercial sites into energy saving machines and saving customers over $25 million in the process. That’s not just green talk, it’s real dollars, real emissions avoided, and real infrastructure transformation.
So what happens when a company with a 250% CAGR and a patented, zero-upfront-cost model walks back into the funding arena? They don’t raise capital, they command it. Budderfly just locked in another $100 million in debt financing from Nuveen Energy Infrastructure Credit (Nuveen EIC), stacking this on top of a $400M facility co-led by Nuveen and Vantage Infrastructure, and a $500M equity play by Partners Group, who now hold majority equity. Altogether, that’s over $1B in capital fueling what might be the cleanest, and smartest, energy pivot happening behind the meter.
Credit where it’s due: Albert R. Subbloie, Founder and CEO, is a serial builder with receipts. He built Tangoe from telecom tech to IPO, and before that scaled Information Management Associates to $50M in revenue before the dot-com crowd could spell SaaS. Now with Budderfly, Subbloie and his team, Paul Schmidt (COO), Peter Dacey (CFO), Tom Flynn (CAO & General Counsel), Jodi Susman (CMO), and Rob Simons (CSO), have created an EaaS model that doesn’t just serve the grid, it rewires the expectations for how small-to-midsize businesses cut carbon without cutting checks.
Budderfly owns the capital stack, the tech stack, and the accountability. They don’t ask customers to “try a pilot,” they retrofit entire locations with smart HVAC, LEDs, water-saving tech, real-time analytics, and behind-the-meter renewables. Then they manage, monitor, and optimize it all under 10–15 year service agreements, with 29 U.S. patents protecting the moat. That’s what you get when you blend software, hardware, and hustle.
The new debt facility will keep the flywheel spinning, accelerating deployments in retail, healthcare, assisted living, fitness, and franchise QSR. Brands like McDonald’s, Wendy’s, Popeyes, and Five Guys have already plugged in. Now Budderfly’s doubling down on solar, batteries, and EV charging, while enrolling thousands of sites into demand response. That’s how you evolve from vendor to virtual power plant operator.
This isn’t just a funding story. It’s a lesson in building a business that scales smart, sells value, and stays sticky. Budderfly isn’t chasing hype, they’re catching kilowatts, saving money, and building resilience into the commercial fabric of America. One smart location at a time.


