November Climate & Sustainability Investor Deal Share by 4WARD.earth 🚜🐟⚡♻️☀️
11 Pre-Seed to Series B Climate Deals Ready for Q4/Q1 Deployment
4WARD Editor’s Note
Welcome to this month’s climate deal flow roundup by 4WARD.earth. We’ve identified 11 promising climate and sustainability startups across key sectors that may be actively raising funds or considering a raise in the coming months who might be worth reaching out to :)
🚀 Featured Sustainability Startups
Sector: Sustainable Food Systems & Aquaculture
🇮🇳 Fishmongers (Series A) is building the “Amul of Aquatic Protein” for India’s ₹4.5 lakh crore fish economy. Full-stack biology-to-brand platform with patented live-fish transport, demand-led harvesting, blockchain traceability and zero warehousing. Already at ₹240 Cr ARR (+33% in 45 days), 2–3× farmer income uplift, 28.5% shorter crop cycles and 15%+ contribution margins. Formalising the world’s 2nd-largest fish market with massive impact + profitability.
🇺🇸 Mitti Labs (Seed) is a AI + remote sensing platform cutting 30–50% methane from Asian rice farming while generating high-integrity carbon credits. 10K+ farmers onboarded, Microsoft offtake committed, Lightspeed & NASA-backed.
🇮🇳 Varaha (Series A) is a Regenerative-ag carbon platform for smallholders using satellite + AI verification. Microsoft committed to 100K tons of credits by 2030. Targeting 337K farmers across India in the exploding $100B+ carbon-ag space.
Sector: Energy Storage & Grid Decarbonisation
🇺🇸 Fourth Power (Series A+) produces multi-day thermal batteries using abundant materials for < $20/kWh long-duration storage. Bill Gates’ BEV + Munich Re backed, 50% cheaper than lithium in utility pilots.
🇺🇸 AtmosZero (Series A) makes electrified industrial heat pumps delivering 200°C steam with 3× efficiency vs fossil boilers. Deployed in breweries with 40% OPEX savings; BNEF Pioneer 2025 winner.
Sector: Hard-to-Abate Industrial & Maritime Decarbonisation
🇯🇵 Sun Metalon (Series A) does electrochemical metal recycling – turns scrap aluminium/steel into alloys without smelting → 90% emissions cut, 40% cost reduction. $41.5M raised, manufacturer pilots live.
🇬🇧 Seabound (Seed – YC W22) retrofits carbon capture for cargo ships (95% CO₂ capture, converted to fuels). Pilots on 5+ vessels, backed by Maersk Growth + UK government grants.
🇩🇪 Makersite (Series B) creates AI lifecycle simulation for product decarbonisation & Scope 3 compliance. Clients: Siemens, Microsoft, Hitachi. Riding EU Green Deal toward $100M ARR.
Sector: Carbon Removal & Utilisation
🇺🇸 AirMyne (Seed – YC W22) does modular, renewable-powered direct air capture targeting <$100/ton. Recent $4M CEC grant + ethanol-port pilots; strong 45Q tax-credit leverage.
Sector: Transport & Infrastructure Electrification
🇺🇸 Greenlane (Seed) makes modular fast-charging corridors for heavy-duty trucks & buses. UPS pilots live, IRA credits aligned, attacking the $200B heavy-transport electrification gap.
🇺🇸 REplace Energy (Seed+) does AI-renewable energy site selection instantly identifying optimal locations for to cut development risks by 80% and boost ROI. Backed by 10 top-tier angels; clients include EDF Renewables and Elawan Energy, accelerating the $1T+ stalled renewables pipeline with data-driven decarbonization.
→ Want warm intros, pitch decks or deeper diligence on any of these? Reply with your thesis (e.g. “India food systems”, “industrial heat”, “DAC”) and we’ll connect you directly.
What’s your top sector for Q4/Q1 deployments? Let us know — more curated deals incoming!
Miss Nov 12th’s Startup Tank Climate Investor Pitch Session? Join the Next One!
Our most recent Startup Tank on November 12 was a huge success: 5 exceptional climate founders pitched live to a panel of three early stage climate & energy VCs plus the entirety of 4WARD’s global member base of investors, start-ups, innovators and sustainability stakeholders!
For Founders - pitch your startup to investors
We’re now accepting applications for the next Startup Tank (planned for early 2026). If you’re pre-seed to Series A+ and solving a hard climate or sustainability problem, apply here: Complete your 4WARD profile → https://4ward.earth/circle
Event page & past recordings → https://4ward.earth/tst
For Investors - join an upcoming panel
Want to join a future panel, give live feedback, or be featured as a judge? This is proprietary, high-signal deal flow. Reply or DM to reserve your seat for the next session.
Sustainability Stakeholders: Want to advance your career & network in climate network? Join the 4WARD.earth’s global ecosystem.
You’ll get instant access to our online platform, curated networking, collaboration events, in-person hubs in 60+ cities worldwide, investor-startup matching, resources, and proprietary deal flow.
→ Join free today: https://4ward.earth
See you inside the community — and hopefully on the next Startup Tank stage!
About 4WARD’s Climate Deal Share: 4WARD.earth helps connect purpose-driven capital with high-impact climate & sustainability solutions.
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Disclaimer: This newsletter is for informational purposes only and does not constitute investment advice. All investment decisions should be made based on independent research and due diligence.