# Alt Carbon Tech Pvt.

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/alt-carbon-tech-pvt

- Industry: Environmental Services
- Headquarters: Kolkata, India
- Website: www.alt-carbon.com
- Total disclosed funding: $12M
- Latest round: Seed (May 21, 2025)
- Investors on record: 2

## About

Alt Carbon Tech Pvt. Ltd., based in India, specializes in sustainable agricultural solutions by enhancing carbon dioxide mineralization through innovative practices focused on soil quality and crop productivity.Founded in 2023 and headquartered in Kolkata, India, Alt Carbon Tech Pvt. Ltd. focuses on environmental sustainability through Enhanced Rock Weathering. The company has completed 3 deals and recently raised USD 12.00 mn in a Seed round, with investments from ACT Grants and Shastra VC. No information on company pivots, subsidiaries, or founders was provided.Alt Carbon’s primary product offering centers around Enhanced Rock Weathering (ERW), a sustainable solution designed to accelerate the natural process of mineralizing carbon dioxide (CO2) from the atmosphere. The company employs a proprietary blend known as Hari Mati, which combines organic inputs with silicate-rich amendments, applied to agricultural lands to enhance soil quality and boost crop yields while simultaneously facilitating CO2 sequestration. This innovative approach addresses the dual challenges of climate change and agricultural productivity, specifically targeting regions like Darjeeling, where climate impacts threaten the local tea estates. Alt Carbon primarily serves agricultural businesses and environmental organizations focused on carbon mitigation, operating in markets that include India and potentially other regions in South Asia where climate action is critical.Alt Carbon generates revenue through direct partnerships with agricultural enterprises and possibly through subscription models for ongoing services related to Enhanced Rock Weathering implementation. Transactions are structured around the application of their proprietary product, Hari Mati, which is sold to clients seeking both soil improvement and carbon removal solutions. The pricing model is based on the scale of land treated and the volume of product applied, aligning with the economic interests of farmers and agricultural stakeholders. The company’s revenue streams are reinforced by the growing demand for sustainable agricultural practices and carbon offset solutions.The recent Seed funding of USD 12.00 mn will support Alt Carbon’s strategic initiatives, including the development of new products designed to enhance agricultural productivity and carbon sequestration. The company plans to expand its operations into additional regions within South Asia by the end of 2024, targeting markets where climate change poses significant agricultural challenges. Additionally, the funding will facilitate the scaling of their proprietary product, Hari Mati, to meet the increasing demands from agricultural stakeholders.

## Funding rounds

- Seed, May 21, 2025, $12M — ACT, Shastra VC

## Investors

- ACT — Seed
- Shastra VC (https://capitalatlas.ai/funds/shastra-vc) — Seed