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Cleantech startup altM raises $10.3M in Series A led by Rainmatter and Mela Ventures to scale manufacturing of specialty chemicals from agricultural residue.

PRIVATENov 05, 2026

Amount Raised

$10.3 Million

Round Type

Series A

BengaluruManufacturingBiotechnologyAgriculture and Farming

Investors

Spectrum ImpactAureolis VenturesTheia VenturesOmnivoreMela VenturesRainmatter By Zerodha

Description

Cleantech startup altM has raised $10.3 million in a Series A funding round led by new investors Rainmatter by Zerodha and Mela Ventures, with participation from existing investors Omnivore, Theia Ventures, Aureolis Ventures, and Spectrum Impact. The Bengaluru-based company will use the capital to expand manufacturing, build its sales pipeline, and continue R&D investments. altM plans to set up a 1,000-tonne-per-year commercial manufacturing facility by 2028 and scale to 10,000 tonnes annually over five years. Founded by former Tesla executives, the company develops specialty chemicals and biomaterials from agricultural residues for applications in beauty, textiles, construction, and consumer goods.

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Company Information

Company

altM

Location

Bengaluru, Karnataka, India

About

altM is a cleantech startup founded in 2022 by former Tesla executives that develops specialty chemicals and biomaterials from agricultural residue for industrial applications. The company converts lignocellulosic biomass, including sugarcane bagasse and rice straw, into materials for beauty and personal care, textiles, industrial chemicals, construction, packaging and consumer goods. altM offers an alternative to fossil-derived raw materials by utilizing cellulose, hemicellulose and lignin from agricultural waste to produce multiple products from a single feedstock. The company has built an integrated R&D and pilot manufacturing facility in Bengaluru and is preparing for commercial production.

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Funding Insights

What this usually means
Typical timeline to Series B
Series A companies typically raise their next round in 10-18 months

altM raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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