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State of Climate Tech Q3 2025 Report

The State of Climate Tech Q3 2025 explores the key trends, challenges, and opportunities in this rapidly evolving ecosystem. It offers comprehensive insights into the forces shaping the future of Climate Tech, providing investors, corporations, and key financial decision-makers with the critical insights needed to capitalize on emerging opportunities and drive the adoption of impactful solutions.

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What’s Inside

Introduction

A word from our sponsor

  Key takeaways

Equity proved resilient amid 2025’s market volatility

Investors grow more selective, backing ventures with clear traction

Venture activity cools, yet strategic and growth investors hold firm

Energy, Transport, and Industry remain core pillars

New focus on nuclear, grids, and data centers

Policy shifts & AI-driven energy demand reshapes sector priorities

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Growth-at-all-costs gives way to selective investing

Fewer, larger deals favor tech with clear commercial viability

Regional capital divides are widening

Report scope and definitions

Research methodology

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Media Coverage

Key Highlights

Equity sustains Climate Tech as non-dilutive momentum flips

Equity has remained a steady anchor for Climate Tech through 2025, with investor confidence holding firm despite market volatility and geopolitical uncertainty. Meanwhile, non-dilutive funding weakened in Q3, as grant allocations fell and debt tightened amid policy shifts and cautious financial markets. Overall deal activity slowed, with investors favoring ventures demonstrating proven traction, scalability, and resilience to macro and policy risks.

Energy leads Climate Tech with 34% of funding and 42% of equity deals in 2025, even as non-dilutive support declines. Mature sectors follow similar patterns, while less-funded areas like GHG capture, removal and storage, and water see pullbacks. Natural Environment bucks the trend, highlighting diverging tech priorities.

Despite overall decline, sector leaders hold their ground

VC deal participation projected to fall to early-decade levels

VC activity in Climate Tech is set to hit early-2020s lows, as early-stage investors pull back from capital-intensive, long-horizon bets. Strategic and growth investors remain resilient, while top VC firms continue backing high-capital deep-tech in energy, agriculture, and biodiversity.