January 8, 2026

Episode 16: Federico Cristoforoni (Net Zero Insights) - The State of Climate Tech in 2025

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Federico Cristoforoni, Co-Founder and Managing Partner of Net Zero Insights, discusses the findings of the State of Climate Tech 2025 report on Episode 16 of Scaling Green Tech, a podcast by Adopter.

Cristoforoni traces the shift in climate tech investment from the hype-driven environment of 2021-2022 to the selectivity-driven market of 2025. Total funding levels have stabilised since a 2023 collapse, but the number of transactions dropped sharply - meaning fewer companies are getting funded, each clearing a higher bar. Graduation rates tell the sharper story: 50% fewer companies are progressing from seed to Series A, and 80% fewer are making it from Series A to Series B compared to 2022. For hard-tech companies, the centre of gravity has shifted from prototype stage in 2022 to demonstration stage in 2025, signalling that technologies are proving they work but now face the second valley of death around commercial scaling. The report also finds that 25% of climate tech investment in 2025 went to companies using AI as a core part of their value proposition. Adaptation's share of total funding has doubled to 8% over five years. And India has overtaken the UK as the second-largest market for climate tech investment by volume.

This episode is relevant for climate tech founders preparing fundraising strategies in a tighter market and venture capital investors benchmarking portfolio performance against sector-wide data. It is also useful for corporate innovation teams tracking technology readiness across climate verticals, and B2B marketers positioning climate solutions around cost and performance rather than impact language.

Guest Profile

Federico Cristoforoni is the Co-Founder and Managing Partner of Net Zero Insights. He founded the company six years ago and has published the State of Climate Tech report series since 2022, with quarterly reports and annual deep-dive publications tracking trends across the global climate tech ecosystem.

Net Zero Insights is a market intelligence platform specialised exclusively in climate innovation and the net-zero transition. The platform tracks companies from the point they have a commercial presence - a website, a product, something to sell - through to exit, acquisition, or market leadership. It provides data including technology readiness levels over time, offtake agreements, commercial partnerships, and deployment stages from pilot through to full-scale facilities. Customers include investors, corporates, governments, and advisors.

Company Website

The State of Climate Tech 2025 report

Federico Cristoforoni LinkedIn

Key Takeaways

  • 50% fewer companies are progressing from seed to Series A in 2025 compared to 2022, and 80% fewer are making it from Series A to Series B. Cristoforoni frames this as the market shifting from hype to fundamentals. Investors now require commercial traction and proof of market demand, not just technical validation.
  • Total climate tech funding levels have stabilised since the 2023 collapse, but the number of transactions dropped sharply in 2025. Fewer companies are getting funded. Those that do raise capital are clearing a higher bar - a dynamic Cristoforoni frames as investor selectivity rather than market retreat.
  • 25% of climate tech investment in 2025 went to companies using AI as a core component of their value proposition. Applications span grid optimisation, energy flexibility, material discovery, and process efficiency. Cristoforoni distinguishes between AI as a general operational tool and AI meaningfully integrated into a company's core offering.
  • Adaptation's share of total climate tech funding has doubled from approximately 4% to 8% over the past five years, growing consistently even as other segments fluctuated. Cristoforoni attributes this to adaptation's alignment with the broader market focus on resilience.
  • The centre of gravity for hard-tech climate companies has shifted from prototype stage in 2022 to demonstration stage in 2025. The majority have proved their technology works but now face the second valley of death - the gap between technical validation and commercial-scale market adoption.
  • India has overtaken the UK as the second-largest market for climate tech investment by volume, more than doubling its investment level year on year. The US remains first by a significant margin, with a 7.5% increase year on year despite policy rollbacks under the new administration. China appears fifth in the data, though Cristoforoni notes this likely understates its actual position due to limited disclosure.
  • Government grants are retreating from the earliest stages of breakthrough innovation, particularly in the US. The report already shows a decrease in companies at the R&D phase (TRL-3). Cristoforoni expects this pipeline contraction to become more visible over the next one to three years.

FAQs

  1. What is the State of Climate Tech 2025 report?

The State of Climate Tech 2025 is the fourth annual publication from Net Zero Insights, a market intelligence platform specialised in climate innovation. The report tracks investment trends, company graduation rates, technology readiness levels, geographic distribution of funding, and sector-level shifts across the global climate tech ecosystem. It builds on a quarterly report series published since 2022.

  1. Is climate tech investment increasing or decreasing?

Total funding levels stabilised in 2024 and 2025 after a sharp collapse from the 2021-2022 peak. However, the number of individual transactions decreased significantly in 2025, meaning the same volume of capital is being concentrated into fewer companies. According to Net Zero Insights co-founder Federico Cristoforoni, this reflects growing investor selectivity rather than a retreat from the sector.

  1. What is the second valley of death in climate tech?

The second valley of death is the gap between proving a technology works and achieving commercial-scale market adoption. Net Zero Insights' data shows that the majority of hard-tech climate companies moved from prototype stage in 2022 to demonstration stage in 2025. They have cleared the first valley of death - technical validation - but now face the challenge of market demand, deployment infrastructure, and commercial traction.

  1. How is AI being used in climate tech?

According to Net Zero Insights, 25% of climate tech investment in 2025 went to companies using AI as a core part of their value proposition. Applications include grid optimisation, energy flexibility, material discovery, and manufacturing process efficiency. Cristoforoni notes that meaningful AI integration - where it is central to the product, not just an operational tool - is harder to achieve than it appears, particularly at the precision levels required for many climate applications.

  1. What is happening with climate adaptation investment?

Adaptation's share of total climate tech funding has doubled from approximately 4% to 8% over the past five years, growing consistently even as other sectors fluctuated. Cristoforoni links this to adaptation's fit with the market narrative around resilience and extreme weather preparedness. He notes that adaptation may also benefit from being more software-driven than some mitigation technologies, though this varies by vertical.

  1. Which countries lead climate tech investment?

The US remains the largest market by a significant margin, with a 7.5% year-on-year increase in 2025 despite policy rollbacks. India has risen to second place, more than doubling its investment level and overtaking the UK. China appears fifth in Net Zero Insights' data, though Cristoforoni notes this likely understates its position due to limited transparency in public disclosure.

Topics Covered

  • Net Zero Insights' platform and customer base
  • The shift from climate hype to commercial fundamentals since 2021
  • Investor selectivity and the drop in transaction volume
  • Graduation rates from seed to Series A and Series A to Series B
  • The green premium debate and positioning around cost and performance
  • AI as a structural component of climate tech solutions
  • Adaptation's growing share of total climate tech funding
  • Geographic shifts in investment - US, India, UK, and China
  • Government grant funding retreating from early-stage innovation
  • The second valley of death and the prototype-to-demonstration shift
  • The narrative shift from ESG language to resilience and sovereignty
  • Cristoforoni's outlook for 2026 and beyond

Related Content

Episode 18: Cam Ross (Green Angel Ventures) - What Makes Climate Tech Investable

Episode 15: Simon Zadek (Morphosis) - Introducing the Adaptation Economy

Strategy & messaging for deep tech and climate adaptation companies

About Scaling Green-Tech

Scaling Green-Tech by Adopter is a podcast for people shaping the future of climate technology - founders, investors, and ecosystem leaders at the forefront of adaptation and resilience solutions. As part of Adopter’s mission to accelerate the adoption of high-impact climate innovation, the podcast aims to amplify real voices and practical insights that can help others navigate the startup journey. These conversations go beyond the hype to bring real, unfiltered stories - the wins, the roadblocks and everything you need to know in between.

Read the full transcript here
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