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✦ Knowledge & Growth

The Planet Positive Magazine

Insights, exits, and impact reports from the frontlines of sustainable startup investing.

Latest Insights

Why I’m Watching Airthium (YC S17) — The Y Combinator-Backed Startup Electrifying Industrial Heat

Every product you own was made with heat. Airthium has built a containerized, plug-and-play heat pump that connects to existing factory boilers — no disruption, no overhaul. Backed by Y Combinator and a $4M French government grant. Their community round is open now on Wefunder.

Airthium containerized industrial heat pump — plug-and-play electrified heat for factories
Oshi whole-cut plant-based salmon fillet Whole-Cut Plant-Based Salmon: Inside Oshi’s Modular Layering Technology

Oshi has patented a “Modular Layering” process that builds plant-based salmon fillets layer by layer — replicating the texture and flake of wild-caught fish. Backed by the VCs behind Oatly & Impossible Foods.

EcoSave Technologies EST CORE™ clean water technology Why I'm Backing EcoSave Technologies

Their EST CORE™ technology strips 99.99% of toxins from waterways at the source. After 14 years of real-world proof, I think this might be one of the more important companies we've ever featured.

Precision agriculture the nature-positive economy The $10 Trillion “Nature-Positive” Economy

The energy transition is old news. The next decade of planet-positive investing is being built on precision farms, alternative proteins, and biodiversity tech — a sector projected to generate over $10 trillion in annual business value.

Sustainable Burger Opening How One Passionate Vegan Turned $100 Into a Movement

Decades after a quiet decision to stop eating meat, Mark Perlmutter’s conviction became Planet Positive Investing — a free club of 30,450+ members backing planet-positive startups.

Wind Harvest International vertical-axis wind turbines Wind Harvest Signs $80M+ Deal with Chair Capital

Chair Capital committed up to $80 million-plus to help scale Wind Harvest International’s vertical-axis turbines — and the implications go way beyond one company’s balance sheet.

rHealth Blood Test Used in Space

Mark Perlmutter shares why he is impressed with rHealth, a startup delivering handheld, lab-quality blood diagnostic devices.

GACW wheel Cleaner Lithium, Better Wheels

Mark Perlmutter shares how GACW is solving a massive mining waste issue at the intersection of EVs and lithium mining.

A Small Win Worth Sharing

20/20 BioLabs debuts on Nasdaq Capital Market under ticker AIDX, marking a key milestone for CF investors.

20/20 BioLabs
Fueling the Future with Sprouted Snacks

Founder Mark Perlmutter shares how firefighter-turned-entrepreneur Rich Pauwels is scaling sprouted organic snacks.

Rich Nuts
Blackbird Foods Acquired by Ahimsa

How a plant-based roll-up strategy is helping alternative protein brands scale logistics and distribution.

Blackbird Foods
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About the Curator
Mark Perlmutter

Mark Perlmutter

Founder & CEO

Stockbroker pioneer turned vegan impact advocate, democratizing early-stage climate and food technology deals for everyday people.

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