altM Raises $10.3M to Turn Agricultural Waste Into Fossil-Fuel Alternatives

Bengaluru-based altM has secured $10.3 million in Series A funding to accelerate the commercialization of specialty chemicals derived from agricultural waste. The round, led by Rainmatter by Zerodha and Mela Ventures, follows a $3.5 million seed round and signals a push toward industrial-scale production, with plans to build a 1,000-tonne-per-year facility by 2028 and scale to 10,000 tonnes annually within five years. Investors also returning to the round include Omnivore, Theia Ventures, Aureolis Ventures, and Spectrum Impact.

The funding comes as altM prepares to launch its first biomaterials in the beauty and personal care sector—including a lignin-derived SPF booster and cellulose-based rheology modifiers—while expanding into construction, electronics, and automotive. The startup’s core technology breaks down agricultural residues like sugarcane bagasse and rice straw into cellulose, hemicellulose, and lignin, then upgrades these fractions into high-value industrial inputs. Inc42 reported that altM has already advanced six molecules to demonstration stage and three to pilot production, with a 70-tonne-per-year pilot plant in Bengaluru now nearing commercialization.

This is not just another cleantech play. altM’s founders, Apoorv Garg and Yugal Raj Jain, bring Tesla manufacturing experience to a sector where most startups focus on lab-scale innovation rather than scaling production. Their background suggests a deliberate strategy: treat agricultural waste as a feedstock as reliably abundant as crude oil, but with the added benefit of reducing dependence on imported petrochemicals. The Economic Times noted that the round reflects broader investor interest in reducing reliance on fossil-derived materials—a trend we’ve seen in recent deeptech funding, such as Re:Build’s $2.1 billion push to revive U.S. manufacturing or InfiMaker’s expansion in China.

The challenge, however, is execution. altM must prove it can move beyond pilot-scale production to commercial viability. Still, the beauty and personal care sector, while high-margin, is competitive, and scaling into construction and automotive will require partnerships with heavy industry.

What sets altM apart is its focus on *manufacturing* from the outset. While many cleantech startups struggle with the gap between lab success and factory-scale output, altM’s integrated R&D and pilot facility—expanded fivefold since 2023—demonstrates a rare commitment to vertical integration. This mirrors the strategy of Venttup, which we covered in October, where precision manufacturing became a moat in India’s hardware ecosystem. altM’s approach could serve as a blueprint for other deeptech startups seeking to bridge the valley of death between prototype and production.

The next move to watch: whether altM can secure offtake agreements with major brands in beauty and construction before its pilot plant reaches capacity.

Sources: inc42.com · economictimes.indiatimes.com