Greennex Pulse October Roadshow: 6 Frontier Climate Tech Startups Showcased, Backed by Breakthrough Energy, United Airlines Ventures, and Shell

By Greennex Global | October 2025

Carbon-to-Value & Frontier Energy Innovation Spotlight

The October edition of the Greennex Pulse Roadshow brought together a global network of investors, corporate partners, and climate tech entrepreneurs for a high-impact session focused on carbon-to-value pathways, battery circularity, fleet electrification, and frontier energy systems.

With a curated lineup of six venture-backed startups and thought-provoking insights from sector leaders, the session served as both a barometer for market traction and a platform for global deal connections. Over 50 global stakeholders from Asia, Europe, and the Americas joined the closed-door roadshow online, underscoring the rising international momentum behind these solutions.

Global Spotlight: Yokohama, Japan

Masahiro Nishikawa, Director of the Office of the City of Yokohama and Representative to the Americas, opened the session with insights on how Yokohama is positioning itself as a clean technology hub and fostering international partnerships to accelerate sustainable urban development.

Climate Venture Talk

Frédéric Clerc, Director of the Carbon to Value Initiative and Interim Managing Director of Urban Future Lab at NYU Tandon School of Engineering, delivered a keynote on "What's Actually Moving in the Carbon-to-Value Market."

Clerc highlighted momentum in sustainable aviation fuels, concrete and aggregates, and chemical products—with first-of-a-kind facilities now under construction. A central theme: credibility as currency. For companies relying on carbon credits, measurement, reporting, and verification (MRV) must be core to the business—the strongest validation signal for investors.

On scaling, he emphasized that repeatable unit economics requires four stages: lab, pilot, demo, and commercial. Smart founders adopt hybrid "own-and-operate" models for control and credibility. For global investors, now is an opportune moment as valuations have come down, with significant opportunity in first-of-a-kind project finance.

Pitching Startups

Each startup was selected for its proven technical traction, upcoming funding round, and strategic relevance to the Greennex investor network:

1. Mars Materials CO₂ utilization · Biomass conversion · Acrylonitrile · Catalysts · Carbon fiber · Petrochemical replacement

Aaron Fitzgerald, CEO & Co-Founder, presented Mars Materials' approach to converting captured CO₂ into acrylonitrile—a key input for carbon fiber and water treatment chemicals. Backed by federal grants and letters of support from SNF, Solenis, and SLB, the company's electrochemical process eliminates petroleum feedstocks and cuts CO₂ emissions by over 80%, with validated performance in the $11B flocculant market.

2. Cemvita Inc. Biological CO₂ conversion · Engineered microbes · Hydrogen · Low-carbon fuels · Industrial biomanufacturing

Moji Karimi, CEO, showcased Cemvita's synthetic biology platform that converts CO₂ and industrial waste into ultra-low-carbon biofuels and biofertilizers. With a 20-year, 1-billion-gallon SAF offtake from United Airlines and a Be8 partnership for its first commercial plant in Brazil, Cemvita is raising to scale global biomanufacturing, targeting the $400B+ sustainable oils market by 2033.

3. BetterFleet Fleet electrification · AI optimization · Charging software · Emissions reduction · Mobility logistics

Daniel Hilson, CEO, presented BetterFleet's SaaS platform and IoT devices that optimize connected electric fleet management. With 200+ fleets, 40+ live depots, 1,000+ vehicles in service, and 30% of London's transit fleet committed to its software, BetterFleet is seeking pre-Series B strategic interest to expand into 6 additional markets across Europe, Asia, and the Middle East in the $5B market projected to reach $20B by 2030.

4. Bridge Green Upcycle Battery recycling · Lithium-ion · Black mass recovery · Circular economy · Sustainable materials

Balki Iyer, Founder & Chairman, demonstrated Bridge Green's urban mining approach to extracting critical minerals from end-of-life lithium-ion batteries through a patent-pending lithium-first mechanochemistry process. With customers like Glencore and partnerships with Ascend Elements, Redwood Materials, and SMBC, Bridge Green is raising Series A to address the 700,000-ton mineral shortfall by 2030, with commercial scale targets in India (7,200 MTPA) by Q4'26 and U.S. (4,800 MTPA) by Q2'26.

5. Volexion Graphene encapsulation · Lithium-ion batteries · Energy density · Cathode technology · Storage innovation

Joseph X. Adiletta, CEO, unveiled Volexion's graphene encapsulation and Cathode Active Material (CAM) technology that dramatically improves lithium-ion battery performance—extending life, increasing energy density, and accelerating charging while integrating seamlessly into existing manufacturing. Backed by Clean Energy Ventures, Earth Foundry, Argonne National Lab, NSF, and DOE, Volexion is raising Series A to scale pilot production and deploy across the U.S., EU, and Asia.

6. XGS Energy Closed-loop geothermal · Ultra-deep heat · 24/7 clean power · Zero-carbon baseload · Next-gen energy systems

Lucy Darago, Chief Commercial Officer, presented XGS Energy's closed-loop geothermal technology that generates baseload power without water or specific geology requirements. With 3,000+ hours of successful commercial operations and a 150 MW agreement with Meta for New Mexico deployment, XGS is raising Series B to accelerate its 3+ gigawatt pipeline, targeting the $200T global opportunity for 40+ TW of hot-rock power potential.

With all this momentum building — and seven frontier climate tech startups pitching — Greennex Global has received strong interest from a wide range of global stakeholders, investors, and government partners looking to connect and explore cross-border synergies. Moving forward, the Greennex team remains committed to advancing the vision of globalization — facilitating strategic partnerships that shape the future of climate infrastructure.

What's Next

Our next Pulse Roadshow: Tuesday, November 25 at 10:00 AM ET

• Startups: Apply to pitch at Greennex Pulse

• Investors: Contact us at info@greennexglobal.com

Greennex Global is a cross-border market intelligence and dealflow platform focused on climate infrastructure. Greennex Pulse is our flagship monthly investor program spotlighting frontier-stage and globally scalable U.S. climate tech startups.

Let's keep building the bridge between global capital and climate innovation.