Empowering enterprises to drive revolutionary change
1st Avenue Capital backs visionary teams solving urgent power infrastructure challenges with practical, high-impact clean energy solutions.
OUR COMPANYSolving tomorrow’s energy problems today
1st Avenue Capital is a mission-driven family office investing in scalable, real-world next generation infrastructure solutions leveraging a modern software centric approach. We are shaping the future of power through deep partnerships, strategic capital, and systems thinking that turns innovation into impact.
We’re solving the world’s power infrastructure’s hardest problems—now.
OUR EXPERTSOur team combines decades of leadership in engineering, finance, and advanced power systems design. From structuring some of the world’s largest multi-billion-dollar clean power projects to inventing the next generation of power systems, we bring the experience and conviction to navigate complexity—and to deliver.
Dr. Tom
Buttgenbach
Chief Executive Officer
Kip
Larson
Chief Technology Officer
OUR FUTUREThe backbone of a prosperous world
Through our innovation arm, 1st Avenue Innovations (1AI), we’re advancing breakthrough solar and storage systems to make clean power faster, cheaper, and easier to adopt—everywhere from data centers to rural villages.
IN THE NEWSWhere vision meets action
Explore media coverage, industry commentary, and announcements from across our ecosystem.
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The Electric: Fear of Trump's Wrath Kept Industry From Lobbying to Save AI Data Center Subsidies—Until Now
June 12, 2025
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Acquisition of Avantus complete. KKR closed a $522 million development facility to advance Avantus’ pipeline.
July 31, 2024
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KKR and EIG invest more than $1 billion in equity and debt financing in Avantus
March 21, 2024
OUR FUTURELet’s build what comes next
We support innovators, operators, and mission-aligned partners to build the energy systems of tomorrow. Let’s talk.
