Houston Climatetech Summit 2026

The annual Greentown Climatetech Summit is the premier gathering of entrepreneurs, investors, corporate leaders, policymakers, and philanthropists accelerating the climate, energy, and industrial transformation. Once a year, we open the doors of our incubators to the people working hardest to move all of it forward. On Sept. 16 in Houston and Oct. 29 in Boston, step inside our labs to meet our 260+ climatetech startups, hear perspectives from industry leaders, and forge connections with changemakers across the ecosystem. Attend your way. Climatetech Summit offers multiple ways to participate: Full-Day Admission: Includes morning programming, lunch, the Startup Showcase & Open House, and the evening Pitch Competition & Happy Hour. Afternoon Showcase Admission: Includes afternoon access to the Open House & Startup Showcase, and the evening Pitch Competition & Happy Hour. Virtual Admission: Livestream access to the morning programming only. This isn't a conference confined to one room. Throughout the day, you'll move through Houston's dynamic Ion District, from thought-provoking conversations at The Ion to hands-on innovation inside Greentown Labs, ending with an evening celebration at the legendary Continental Club. Each stop offers new opportunities to discover groundbreaking technologies, meet industry leaders, and experience why Houston is where climate innovation comes to life. Houston Agenda The Ion – 4201 Main Street (8:00am – 12:30pm) 8:00 AM | Check-In & Breakfast 8:40 AM | Welcome Remarks from Greentown Labs CEO Georgina Campbell Flatter and emcees Kelsey Kearns and Neal Dikeman. 9:00 AM | Keynote: Scaling the Biggest Clean Energy IPO on Wall Street, Featuring Fervo Energy CEO and Co-founder Tim Latimer, SCF Partners’ David Baldwin, and Activate Managing Director Jeremy Pitts. 9:45 AM | Launching Unicorns: What Breaks on the Way to Scale, Featuring Ohmium International Co-founder Arne Ballantine, Persona AI CEO and Co-founder Nicolaus Radford, Armada Chief AI Officer Prag Mishra, and Greentown Labs CEO Georgina Campbell Flatter. 10:25 AM | Networking Break 11:00 AM | The U.S. Nuclear Renaissance: Is This Comeback Different? Featuring Deployable Energy CEO, CTO and Co-founder Bobby Gallagher, Former U.S. Nuclear Regulatory Commission Chair Christopher Hanson, Greentown Chief Strategy Officer Lawson Gow, and others TBA 11:40 AM | Powering the AI Boom: Energy, Siting & the Capital Behind It, Featuring CenterPoint Energy Chair, President and CEO Jason Wells, Entergy Texas CEO Eliecer Viamontes, and Greentown Labs CGO Aisling Carlson. 12:15 PM | Transition to Greentown Labs Houston Greentown Labs Houston – 4200 San Jacinto Street (12:30pm – 4pm) 12:30–1:30 PM | Networking Lunch 1:30-1:35 PM | Opening remarks 1:35 - 2:00 PM | Powering Capital: Inside Corporate Venture Strategy in Climatetech panel 2:00 - 2:15 PM | Greentown Ecosystem Exchange Spotlight and lightning pitches 2:40 - 2:50 PM | Greentown Member lightning pitches 3:15 - 3:25 PM | TEX-E Fellows lightning pitches 2:00–4:00 PM | Open House & Startup Showcase w/ 50+ startups Continental Club – 3700 Main Street (5:00pm – 9:00pm) 5:00–9:00 PM | Startup Pitch Competition & Happy Hour, Eleven Greentown startups will take to the stage to compete for a total of $25k in prizes from our partners TotalEnergies and Foley Hoag!