



Results
We are measured in closed rounds.
$67M raised by founders we backed. Every round in the receipts below is on public record.
For deeptech category leaders raising Series A or B
Tell us where you feel stuck. We place the right expert exactly there, for as long as you need, to create real transformation and make you the category leader you set out to be.
Results
Over eight years. 12 companies taken to Series A or B.
What we see
Most founders come to us with a funding problem and a wish for more intros. One conversation usually shows the real gap: the story, the vision, and how the founder shows up in the room. Investors feel it before they can name it.
We work on story, vision, the human side and culture. We go to the root, so the whole company moves onto a different path, and the round follows.
Everyone on the team has been an operator and an investor. We know how founders feel, what they want, and what keeps them stuck without them seeing it.
Why now
of 2024 startups with a $1M+ seed made it to a next round, down from 55%+ before 2021.
Crunchbase News, May 2026from seed to Series A, the longest gap in years. Series A now expects $2M to $4M ARR.
Crunchbase News, May 2026fewer climate tech Series A deals in 2025.
Sightline Climate, Jan 2026fewer climate deals overall while dollars rose 8%. Fewer, bigger checks, into category leaders.
Sightline Climate, Jan 2026The All-Star standard




Results
$67M raised by founders we backed. Every round in the receipts below is on public record.

Human touch
We transform how teams relate to problems, to themselves and to their investors. Weekly, with a seat in the CEO Mastermind.

Expertise
47 investments. Co-founded Climentum Capital, which led Entocycle's $5M Series A.

Unlock
Accelerate Health's deck scored 24 points higher after one rework.
We work with category leaders, or the ones we will help become one. Venture-backed deeptech companies raising Series A or B, typically €5M to €50M in equity or debt. Pre-seed? Start with VC Boom.
Your line-up
À la carte. Bring in one expert or the full line-up, for exactly as long as you need them. No hiring, no ramp-up.
Fundraising lead47 investments. Co-founder of Climentum Capital. Founder of Climate Insiders and VC Boom.
Leadership coachWork psychologist and former Ecosia country director. Keeps founders and teams strong under pressure.
Comms and socialHead of Comms at Food Impact Partners. Shapes the voice investors meet before the meeting.
Former Senior Manager at Vinted. Runs the pipeline, follow-ups and data room. Nothing drops.
Decks and visualsProduct designer. A decade of design leadership at Zendesk, Webflow and BetterUp. Climate tech investor.
How it works
Day 1
Where the round is stuck, and your top three fixes.
Week 1
Only the experts your round needs, for as long as you need them.
Weeks 2 to 8
Strategy, story, deck, data room, warm intros, leadership. Whatever caps the round.
Until signed
Term sheets, diligence and closing, with us beside you.
Led by Yoann Berno
Receipts
What we unlockedA lead investor and a syndicate for the Series A.
I don't think we would have been able to close our Series A without Yoann. His network in the Climate sector is unparalleled.
Keiran WhitakerFounder, Entocycle
Where we came in
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Source: AgFunderNews
What we unlockedA sharper pitch and introductions to the right VCs.
Grateful for Yoann's patience to help fine tune our pitch and introductions to amazing VCs!
Manou DaviesCTO, Anodyne Chemistries
Where we came in

Source: Fort Capital
What we unlockedThe investor network behind the seed, and our own cheque.
Our Seed success story is closely tied to Climate Insiders and his exceptional network within the Climate Tech domain.
Chern-Hooi LimCEO, New Iridium
Where we came in

Source: GlobeNewswire
What we unlockedA story that turned her background into the moat.
I tried the usual LinkedIn outreach, DM by DM, no result and super frustrating. This helped me reframe my background as the moat.
Cimberley GrossManaging Director, Accelerate Health
Where we came in

Source: VC Boom
What we unlockedA confirmed investment in under two months, then top investors.
Within a span of less than two months, he confirmed the investment and promptly connected us with some of the top investors in the industry. Available, strategic, and empathetic.
Andres MitnikFounder, Strong By Form
Where we came in

Source: Crunchbase
What we unlockedAccess to the funds a fusion startup needs at day one.
His extensive network in the Climate sector is like a golden ticket to all major funds.
Jack ZamattioFounder, Hephaestus Fusion
Where we came in
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Source: Climate Insiders portfolio
Human touch
A closed circle of founders who have raised, or are raising, a Series A or B. The CEO who closed last quarter helps the one raising this quarter.
Monthly and off the record. Included while we work together. The agenda is shaped by the members.











YouFounder members
Where we move the needle
Faster closing
Source: Climate Insiders syndicate data, average 1 month. Strong By Form founder, under 2 months.
Higher closing rate
Source: Climate Insiders syndicate data.
More intros
“Ties to every major fund”
“Top investors in the industry”
“Introductions to amazing VCs”
“A golden ticket to all major funds”5 of the 6 founders on this page credit investor access.
Smarter round dynamics
Illustrative. Staged closes at rising valuations: less dilution, cash keeps flowing.
Milestones funded
Sources: AgFunderNews, GlobeNewswire, Fort Capital.
Leadership
With Ferdinand Richter, work psychologist, in every engagement.
Outreach runs on VC Boom, our own platform. #1 Product of the Day on Product Hunt.
Pricing
Pick from the line-up
The alternative
Full-time hires. Months of recruiting, and salaries that run long after the round closes.
All-Star costs a fraction of full-time hires and is built to deliver ten times the value. One fixed fee for what you pick, agreed in writing. Never a percentage of what you raise.
Book your assessment →FAQ
All-Star is the Series A and B program by Climate Insiders. An all-star bench of senior experts, led by Yoann Berno, that you staff à la carte: fundraising, leadership, story, design or operations, only where your company feels stuck, for as long as you need them.
Category leaders in climate, energy, industry, materials, food and deeptech, or the ones we will help become one. Venture-backed and raising a Series A or B, typically €5M to €50M in equity, debt or both.
No. You raise it and stay in charge. We prepare you, run the machinery around you and open doors where the fit is real. We are not a broker or placement agent and never take a cut of what you raise.
You pick the experts and the time frame. We agree one fixed fee in writing before we start, a fraction of full-time hires. No success fees, never a percentage of what you raise.
No one honest can. We commit to the work: a strategy that holds up, diligence-ready materials, a targeted pipeline and senior people in your corner every week.
Yes. Yoann leads every All-Star engagement, runs the weekly session and joins the calls that matter. That is why we take a handful of companies at a time.
A closed, monthly circle of founders who have raised or are raising a Series A or B. Hot seats on real problems, real numbers shared in confidence, and warm introductions between members. Included while we work together.
You pick a 30 minute slot straight away. On the call you get an honest read and a clear yes or no. If yes, you get a written plan and fixed fee within 48 hours.
Book your assessment
Two minutes. Confidential. NDA on request.
Choose a slot. Yoann will come prepared with a first read on your round.
Open the calendar →