Climate tech venture funding spiked 46 percent quarter-over-quarter as investors bet on companies that can deploy hardware projects before 2026 policy deadlines. Mega-rounds for Heirloom Carbon, Fervo Energy, and GridSense highlight a shift toward hard tech scale-ups.

Limited partners say they’re prioritizing startups with offtake agreements and manufacturing readiness. Portfolio companies are raising project finance alongside equity to break ground quickly.

Policy alignment

The surge coincides with new incentives from the U.S. Inflation Reduction Act and the EU’s Net-Zero Industry Act. Investors expect accelerated permitting for carbon removal hubs and geothermal plants.

Analysts warn that teams must still navigate supply chain bottlenecks for heat exchangers and specialty materials. Funds are hiring operating partners with industrial backgrounds to keep projects on schedule.

What to watch

The next milestone is demonstrating measurable carbon accounting that satisfies corporate buyers. Startups are partnering with MRV platforms to deliver transparent dashboards and third-party audits.

With Q4 deployments ramping up, the climate tech sector could enter 2026 with unprecedented momentum if projects hit their execution targets.