Sponsor Climate Insiders

Reach 18,000
climate decision-makers.

I write every issue. 18,000 climate operators, VCs, and founders read it. I take one sponsor per Saturday. If we're a fit, I'll say yes. If we're not, I'll tell you why.

Yoann Berno
Yoann Berno Founder · Climate Insiders
🏆 #1 Climate Tech · Favikon Top Voice · LinkedIn
See packages
18,000+
Subscribers
42%
Open rate
350+
Clicks / issue
78,000+
LinkedIn followers
Readers from places like
Past sponsors & collaborators
The audience

Curated. Verified. Hard to reach.

18,000 verified subscribers. The people who allocate climate capital, pick the tools, and build what comes next.

Roles
  • Founders & CEOs 38%
  • Investors & partners 25%
  • Operators & product 19%
  • Analysts & researchers 11%
  • Other 7%
Geography
  • United States 27%
  • United Kingdom 10%
  • Germany 9%
  • France 7%
  • Rest of world 47%
Demographics
  • Age 25-34 45%
  • Age 35-44 26%
  • Age 45+ 29%
  • Male 63%
  • Female 37%
Newsletter performance
  • Subscribers 18,000
  • Open rate 42%
  • Click-through 5%
  • Avg clicks per issue 350+
LinkedIn reach
  • Followers 78,000
  • Monthly impressions 1.1M
  • Avg engagement 16,000
  • Top geo US 28%, UK 12%
Publishing
  • Frequency Weekly
  • Send day Saturday 08:30 CET
  • Sponsors per issue Max 1
  • Format Editorial
Packages

Pick a package. Pick a date.

One sponsor per issue. Writing included. Performance report after every send. Pay when you book.

Newsletter
Issue Sponsor
$500/ issue
  • ✓Top-of-email featured placement
  • ✓18,000 subscribers, 42% open rate
  • ✓350+ average clicks per issue
  • ✓Written in Yoann's voice
  • ✓Performance report within 48h
No call, Stripe checkout, 24h refund if not a fit
Bundle
Newsletter + LinkedIn
$2,000one-time
  • ✓2 newsletter issues (consecutive Saturdays)
  • ✓2 LinkedIn sponsored posts
  • ✓78K followers, 1.1M impressions
  • ✓Co-written in Yoann's voice
  • ✓Full analytics report
No call, Stripe checkout, 24h refund if not a fit
LinkedIn
Sponsored Post
$700/ post
  • ✓Native post, image or video
  • ✓78K followers, 16K avg engagement
  • ✓1.1M monthly impressions
  • ✓Written in Yoann's voice
  • ✓28% US, 12% UK reach
No call, Stripe checkout, 24h refund if not a fit
Enterprise
Custom multi-month campaigns
Dedicated series, branded deep-dives, custom content for larger organizations.
$3,500+
The math

The best $500 in climate marketing.

Reaching 7,500+ verified climate decision-makers costs 5 to 10x more everywhere else. Here's the honest comparison.

Channel Climate reach Cost Per click Format
Climate Insiders 18K list, 7,560 opens, 350+ clicks $500 $1.43 Editorial
LinkedIn Ads (climate keywords) 3 to 5K impressions (banner) $3,000 to $5,000 $5 to $12
Google Ads (climate vertical) 5K impressions (banner) $2,500 to $3,500 $3 to $6
Typical climate newsletter 4 to 8K opens (ad placement) $800 to $2,000 $1 to $4

Climate Insiders clicks: 350+ average per issue (18K x 42% x 5%). Competitor numbers are B2B industry averages for climate-keyword targeting, 2024 to 2026.

What $500 actually buys

  • Editorial placement by Favikon #1 creator ~$2,000
  • 7,560 verified opens ~$500
  • 350+ direct clicks to your site ~$500
  • LinkedIn post to 78K followers ~$700
  • 3 repurpose-ready quote cards ~$200
  • Performance report + geo breakdown Included
$3,900+ equivalent
You pay $500. All-in, no add-ons.

Why this audience is hard to find

  • LinkedIn's "climate VC" targeting Low volume, not precise
  • Google for "climate founders" Doesn't exist as a segment
  • Paid social (X/Meta) Wrong audience, <1% B2B conversion
  • Climate events media $5K+ minimum, weeks lead time
  • Industry associations $10K+, 6-month sales cycle
  • Climate Insiders newsletter $500, book today, ship Saturday
🛡️ If your product isn't right for climate founders, I refund within 24 hours and explain why before writing. Happened once in three years. If you're reading this page, you're probably a fit.
What you get

Editorial. Not advertorial.

Every placement is integrated into the issue. No banners. No paste-and-pray copy.

01
What you send
Logo (PNG, square), banner image (1400×700), 140-character description, CTA URL, and a short brief on your target audience.
02
How I write it
No call needed. I read your brief, your docs, and write two paragraphs in the same voice as the rest of the issue.
Sponsored example
After 40+ climate investments, I've seen founders waste months on carbon-accounting tools that don't scale. There's one platform I keep recommending. This week they've opened early-stage pricing for Climate Insiders readers.
03
Approval & timing
Brief intake 6 days before send. Draft shared 48h before. One revision round. Issues go out every Saturday at 08:30 CET.
04
Performance report + LinkedIn boost
A one-page PDF within 48 hours: opens, clicks, CTR, geographic breakdown, and three repurpose-ready quote cards for your marketing team. Plus a complimentary LinkedIn post about your sponsorship to 78,000 followers. Extra reach included, no extra charge.
05
Editorial control
I reserve the right to decline sponsors I can't honestly recommend. If it's not a fit, you'll hear it early and won't be billed.
Readers

The people reading the letter.

A snapshot of who'll see your sponsorship.

"

Climate Insiders is on my short list of newsletters I actually read cover to cover. Yoann's taste and filter are what make it work.

Matthias Dill
Matthias Dill
Partner, Energy Impact Partners
"

One of the few climate newsletters that respects the reader's time. Every issue earns its spot in my inbox.

Chris Wedding
Chris Wedding
Founder, Entrepreneurs For Impact
"

Sharp writing and great judgement on what matters in climate tech. It's how I stay current between deals.

Allegra Kowalewski-Ferreira
Allegra Kowalewski-Ferreira
Partner, Breakthrough Energy Ventures
How it works

Three steps. Zero meetings.

Justin Welsh-style flow. Pick. Pay. Publish.

01
Pick a date & pay
Open Calendly, see real-time availability, pick a Saturday issue, fill your details, and pay via Stripe in the booking flow. Slot locked.
02
Send your brief
After payment, you get a brief intake form. Logo, banner image, 140-char description, CTA link. 5 minutes of your time.
03
Go live & report
I write it in my voice. Issue ships on your booked date. Performance report in your inbox 48 hours later.
About

Who's writing this.

Short version: me. Every issue, every sponsorship, every draft.

Yoann Berno

Yoann Berno

I've spent a decade in climate: 40+ investments, a decade of operator roles, and three years writing Climate Insiders every Saturday to the people building the next generation of climate companies.

I take sponsorships seriously because my readers trust my filter more than they trust their own inboxes. If I wouldn't recommend your product to a close friend in the space, I won't write about it. That's the whole product.

Favikon 🏆 #1 Climate Tech worldwide · Favikon 📬 Substack Bestseller LinkedIn ✨ Top Voice · LinkedIn 💼 78K on LinkedIn
18,000+
Newsletter subscribers
42%
Weekly open rate
350+
Clicks per issue
1.1M
LinkedIn impressions / mo

Yoann, climateinsiders.substack.com

Common questions

What to expect, in plain terms.

Self-serve, no back-and-forth. Book, pay, send your brief. Issue ships, report lands.

What happens after I book?
Instant confirmation with a brief intake form. You fill it in 2 minutes (logo, banner, description, CTA link, target reader). I write the issue in my voice. It ships the Saturday you booked. Performance report lands in your inbox 48 hours later. No calls required.
Who reads this?
18,000 verified subscribers. 38% founders and CEOs, 25% investors and fund partners, 19% operators. 27% US, 10% UK, 9% Germany, 7% France. If your ICP is climate founders, operators, or VCs, your audience is here.
What if the draft isn't right?
You see the draft 48 hours before send. One free revision, turned around within 24 hours. If the second version still isn't right, full refund, no awkwardness. In three years it's happened once.
Is the pricing final?
Yes. $500 newsletter, $700 LinkedIn post, $2,000 bundle. All-in, no add-ons, no hidden fees. Payment is collected at booking via Stripe. Invoice available for finance teams on request.
What exactly do I get back?
A one-page PDF report within 48 hours of send: opens, clicks, CTR, geographic breakdown, top-clicking companies, and three repurpose-ready quote cards. Plus a complimentary LinkedIn post referencing your sponsorship to 78,000 followers. All in, nothing extra to coordinate.
What if my product isn't a fit?
The brief intake form asks what you're promoting. If it's not right for climate founders (greenwashing, consumer DTC, offset marketplaces for individuals), I refund within 24 hours and tell you why. You don't waste your money and my readers don't get pitched something that won't land.
Good to know
One sponsor per issue.
Your placement isn't diluted. One sponsor per newsletter, one LinkedIn post per week.
Editorial right to decline.
If your product isn't right for climate founders, I'll refund and explain why before publishing.
No cancellations within 6 days.
Before that, full refund. After, we reschedule to the next open slot.
Payment.
Stripe via Calendly at booking. Invoice on request for the Bundle and Enterprise.

Ready to reach the
climate capital layer?

One slot per week, four per month. First come, first served.

See packages
Next Saturday sponsor slot