First cohort 1Q2027
Twelve weeks. Twelve sessions. A closed room of people carrying the same weight. Forms at eight, targets twelve, capped at fifteen.
Funds, family offices and LPs
Book a callBuy a block of seats for your portfolio CEOs, or co-sponsor a cohort with aligned allocators.
Founders and CxOs applying individually
Register interestJoin the list for the 1Q2027 cohort. Every seat is by application.
Why a cohort
A climate CEO is structurally isolated.
The board wants confidence. The team wants certainty. The investors want the milestone. There is nobody in the building to whom the honest version of the week can be said out loud.
Advisors help with that up to a point. Peers who are three months ahead or three months behind on the same problem help more, and faster, because they are not being paid to be reassuring.
This is not a networking group and it is not a course. It is a working room.
Who is in the room
Curated for stage overlap and sector spread.
Founders, CEOs and CxOs of emerging climate, cleantech, regenerative and circular companies. Board members and capital providers who sit on the other side of the same problems.
Curated so the room has enough common ground to be useful and enough difference to be worth the time.
Every seat is by application. We will decline applications that would make the room worse.
Format
Twelve weeks, twelve sessions.
Two ways in
One cohort, two doors.
A fund or family office takes a block of seats for its portfolio CEOs. Or three or four aligned allocators co-sponsor a cohort across theirs, which has the additional effect of putting their portfolios in the same room.
By application, for founders and executives outside a sponsoring fund.
The platform
Built for confidential cohort work, not assembled from consumer software.
Most mastermind programs are assembled from consumer software: a video tool, a group chat, a shared drive, a scheduler, a payment processor. Confidentiality degrades at every seam, and the facilitator loses the thread of what is happening across the room.
AGGEIO is one purpose-built system for confidential cohort work, with an analysis engine that surfaces patterns across a cohort that the person running it is too close to see. Climate Catalyst Mastermind is amongst its first deployments.
AGGEIO is built by Quantum Ravioli, a product studio under the same ownership as Climate Sprints. Public beta 4Q2026. quantumravioli.com
Faculty
Each has committed to co-facilitate at least one session per cohort.
Plus the Climate Sprints bench, drawn in as the cohort’s problems require. The full bench
Faculty are independent professionals. Each has agreed to co-facilitate at least one session, and that is the whole of what has been agreed — they are not employees, partners or bench specialists of Climate Sprints, and they are not engaged on client assessments or advisory mandates. Organizations named are the faculty member’s own affiliation, current or prior. They are not clients of Climate Sprints and have not engaged Climate Sprints. Company names and marks are the property of their respective owners.
Before you apply
Twelve lines about isolation, not capability.
A climate CEO is structurally alone. The board wants confidence, the team wants certainty, the investors want the milestone, and there is nobody in the building to whom the honest version of the week can be said out loud.
Twelve statements about who you can actually say it to, what goes unsaid, whether anyone in your life is three months ahead of you on the same problem, and what the isolation is costing in decisions rather than in feelings.
Tick six or more of the twelve and the cohort is the room. If you are a fund reading this, run it past the CEO rather than about them — a founder who completes it honestly has told you something no board update will.
The Mastermind checklist — PDF, fillable
Or work through it on screen →
Nothing to fill in here, no email required. The boxes are fillable on screen if you would rather not print it. Every line carries the dimension it maps to in the assessment method.
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