This latest debt raise includes $100 million from Nuveen, building on a prior $400 million debt facility, and a $500 million equity investment from Partners Group.

SHELTON, Conn.–(BUSINESS WIRE)–Budderfly, the leading energy as a service company, announced it has secured an additional $100 million in debt financing from Nuveen Energy Infrastructure Credit (Nuveen EIC) to accelerate the deployment of scalable, holistic energy solutions tailored for energy-intensive buildings across the United States. This latest facility brings Budderfly’s total capital raised to over $1 billion.

Budderfly will leverage this financing to continue providing turnkey energy solutions across a wide range of commercial properties, converting aging infrastructure into high-performing, cost-saving assets.

“Nuveen’s support has been instrumental to our growth, helping us quickly deploy solutions for our customers and scale year over year,” said Al Subbloie, Chief Executive Officer of Budderfly. “This milestone – surpassing $1 billion in capital – is more than just an achievement for our company–it’s clear validation of the importance of energy efficiency in the built environment. Especially in today’s increasingly complex macro environment, businesses need resilient, market-driven solutions, and our model delivers just that: energy savings at zero cost. With support from our investors, we look forward to expanding our impact by helping more businesses become energy efficient.”

“Our additional $100 million debt facility reflects our confidence in Budderfly’s ability to continue to scale rapidly, while delivering both strong financial performance and measurable outcomes,” said Don Dimitrievich, Head of Nuveen Energy Infrastructure Credit. “Budderfly’s energy management platform is one of the most compelling models we’ve seen for delivering real, scalable decarbonization in the built environment. Its ability to generate predictable cash flows, deliver energy savings for Budderfly’s clients, and serve a largely untapped market segment makes Budderfly a high-impact, high-return investment for Nuveen Energy Infrastructure Credit.”

Budderfly’s holistic, behind-the-meter approach integrates advanced HVACs, LED lighting, smart controls, and water-saving technologies—all at no upfront cost. Through 10-15 year service agreements and by investing its own capital, Budderfly delivers customers lower operating costs and helps them achieve progress toward their sustainability goals.

About Budderfly

Budderfly, ranked as one of the fastest-growing Energy as a Service (EaaS) companies in the United States, is the premier sustainability partner for businesses and facilities. Budderfly installs, monitors, and manages a combination of patented technologies, equipment upgrades, and proprietary energy software for its customers at no out-of-pocket cost. Businesses benefit from lower energy bills, a reduced carbon footprint, more reliable operations, and an improved customer and employee experience. To date, Budderfly has helped customers avoid more than 200,000 metric tons of carbon emissions. Budderfly ranked on the Inc. 5000 America’s Fastest-Growing Private Companies list from 2021 to 2024 and the Deloitte Technology Fast 500 list from 2023 to 2024. In 2025, Budderfly was named to Fast Company’s worldwide list of Most Innovative Companies, ranking 2nd for energy and 25th overall. For more information, visit budderfly.com or follow us on LinkedIn or X.

About Nuveen

Nuveen, a global asset manager, offers a comprehensive range of outcome-focused investment solutions designed to secure the long-term financial goals of institutional and individual investors. Nuveen has $1.3 trillion in assets under management as of 31 Mar 2025 and operations in 32 countries. Its investment specialists offer deep expertise across a comprehensive range of traditional and alternative investments through a wide array of vehicles and customized strategies. For more information, please visit www.nuveen.com.

Contacts

Media Contact
Tori Bentkover
budderfly@antennagroup.com

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