Empowering enterprises to drive revolutionary change
1st Avenue Capital backs visionary teams solving urgent power infrastructure challenges with practical, high-impact clean energy solutions.
1AC MISSIONOur mission is to accelerate the adoption of practical, scalable clean infrastructure by equipping innovators with the capital, expertise, and system-level thinking required to reshape the world’s infrastructure.
POSITIVE IMPACTDecisive capital for a changing world
Founded by physicist and clean energy architect Dr. Tom Buttgenbach, 1st Avenue Capital identifies and accelerates technologies that will define the future of infrastructure—from energy systems and critical materials to next-generation platforms. We move with clarity, unburdened by convention, and always anchored in what works.
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.
BEYOND ENERGYStrategic depth.
Operational reach.
Our portfolio reflects a long-view approach to impact. We invest across clean energy, real estate, advanced software, supply chains, and creative ventures—domains where decisive innovation can create durable value. Our decisions are grounded in deep operational fluency and a commitment to scalable systems that matter.
PROVEN SUCCESS1AC companies deliver
Over $1B
IN PROFITOver $10B
IN POWER PURCHASE AGREEMENTS AND PROJECT FINANCINGSLargest pipeline of clean energy projects in the United States, with more than 30GW solar, enough energy for 20 million Americans day and night
OUR FOUNDERDr. Tom Buttgenbach, CEO
A physicist by training and systems thinker by instinct, Dr. Tom Buttgenbach has spent two decades driving solar energy from possibility to profitability. At Avantus (formerly 8minute), he built one of the most successful solar development companies in the U.S., known for redefining the economics of clean power. Today, through 1st Avenue Capital and 1st Avenue Innovations, Tom is scaling the next generation of intelligent power systems that fuse infrastructure, software, and AI.
