Before you commitDiligence
Technical readiness, commercial compulsion and execution capacity, assessed together and written down. Three weeks, fixed fee, opening with a paid definition phase.
For fund managers, family offices and developers allocating into climate
We find out if anyone has to buy it.
Technical diligence tells you whether it works. It does not tell you whether a buyer is compelled to act, whether this team can execute what the deck describes, or whether capital, regulation and buyer urgency arrive at the same time. Climate Sprints assesses all three before you commit and works with your portfolio company after you do.
The market
Where capital went in the first half of 2026, and what it left behind.
$41.3B1
on the fewest deals ever recorded.
Climate tech held near $41.3 billion globally in the first half of 2026 while deal count fell to a record low. Average round size rose from $18 million to $27 million.2 Series C took 40 percent of venture funding, up from 16 percent a year earlier. Low-carbon data centers alone absorbed 34 percent of the sector, up from 3 percent.3
Capital did not leave climate. It concentrated into assets that already resemble infrastructure, and it left the middle — the distance between a technology that works and a first commercial deployment — thinly funded and badly assessed.
How much of your book is in the thin part?
Everything below is built for that question.
Figures current as of H1 2026 · reviewed 1Q2027
- 1 Net Zero Insights, State of Climate Tech H1 2026 — netzeroinsights.com
- 2 Net Zero Insights via Latitude Media, July 2026 — latitudemedia.com
- 3 Currence, H1 2026 Climate Tech Investment & Innovation Report — ctvc.co
How we work
Three points in the life of a position where judgment is worth buying.
After you commitPortfolio support
Momentum Sprints where the technology works and the commercial motion does not. Alignment Sprints for the execution risk more capital cannot fix. Climate Catalyst Mastermind, a twelve-week peer cohort you can buy as a block for your portfolio CEOs.
When a seat has to be filledFractional and interim
A senior operator into a portfolio company in weeks, without running a search. Including standing technical and commercial assessment across the portfolio.
Most engagements are bought by the fund and delivered to the company. We also work with companies directly where the mandate warrants it, and with developers at first-of-a-kind decisions. Questions
The position
And the three outcomes a fund can hold us to.
Technology readiness is not market readiness, and the distance between them is measured in capital cycles, not product cycles.
Fewer positions written down for reasons that were visible at the outset.
Earlier warning on the ones that are timing bets, so they can be sized as timing bets.
And a bench that can be put into a portfolio company in weeks when the assessment turns out to be right.
False-color infrared · U.S. Geological Survey · public domain
The record
What the judgment is built on, attributed to the people who earned it.
A principal-led practice with a standing bench.
Founding principal. Eight co-founded companies. Two private venture funds. Eleven US patents across four ventures. More than $20 million in foundation and public-private capital. The enterprise business-value methodology behind multi-billion dollar Microsoft Enterprise Agreement revenue. And a set of positions that were correct about the technology and wrong about when the market arrived — which is why this practice assesses for timing.
The bench. Specialists engaged per mandate, so the person on your deal is the one the deal requires. Each has built, financed, audited or scaled the following, before and outside Climate Sprints. Names publish as each is confirmed.
Wiley Barbour
Lawrence CullifordEcolomondo · TechnoTherm · Wilson Biochemical · BioEnergy Solutions
Mike Flanagan
David Fotevski
Alexander Gamerdinger
Nick HughesGoldman Sachs · Merrill Lynch · Macquarie
Iana Lahi
David Pereira deCastro
Malcolm Prowse
Shahed Salehi
Heena Shah
Clive Zickel
These are the prior affiliations of the individuals named. They are not clients of Climate Sprints.
Mastermind
First cohort 1Q2027.
Climate Catalyst Mastermind
A twelve-week peer cohort for the CEOs in your portfolio.
A fund takes a block of seats for its portfolio, or three or four aligned allocators co-sponsor a cohort across theirs. Forms at eight, targets twelve, capped at fifteen.
Stay in touch
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