Alt Carbon Raises $12Mn In Seed Round Led By Lachy Groom

Deeptech startup ALT CARBON has raised $12 Mn (around Rs 102.8 Cr) in its seed funding round led by Lachy Groom, with participation from existing investors.

The startup will use the funding to speed up CO₂ removal in the Global South, boost research in earth sciences, develop new hardware, and grow its operations to support long-term climate efforts in India.

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“Alt Carbon is tackling a once-in-a-generation challenge. The personal journey of the founders, their technical approach, and ambitious vision will help us remove CO2 from the atmosphere at gigaton scale—all while adapting agricultural land for climate impact," said Lachy Groom, Investor and Co-founder of Physical Intelligence.

"In just 18 months, the team has built a world-class lab, created proprietary models, and laid the foundation for a new class of carbon removal and agricultural infrastructure,” he added.

“Enhanced Rock Weathering is one of the most promising, permanent carbon removal pathways we have, and yet it’s vastly underbuilt. What sets us apart is our obsession with scientific depth: we’re building advanced labs and engineering the scientific backbone of a new era of climate action grounded in the Global South.,” added Alt Carbon Co-founder and CEO Shrey Agarwal.

About Alt Carbon 

Founded in 2023 by Shrey and Sparsh Agarwal, the Bengaluru-based Alt Carbon helps farmers and scientists turn unused land into carbon removal sites. 

It plans to use technologies like Enhanced Rock Weathering to make South Asia a center for carbon removal.

Darjeeling Revival Project, its flagship initiative, blends large-scale carbon removal with restoring degraded soils, reviving tea-based livelihoods, and preserving the region’s ecology. It’s a bold, community-led model for climate action that links science with sustainability.

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