Demeter Bio raises £158.5k to develop sustainable biopolymers

High-performance biopolymers are the focus of a new £158.5k funding round for Demeter Bio Limited. Based in London, the biotechnology firm develops sustainable materials from renewable sources to offer bio-based alternatives for the chemical manufacturing sector. This investment results in an estimated post-money valuation of £3.3m.

The company was incorporated in January 2025 and conducts research and experimental development. Operating via its website at demeter-bio.com, the firm aims to revolutionize the materials industry by ensuring its products are commercially scalable. Financial accounts for the period ending 31 January 2026 recorded a headcount of three staff members, though current LinkedIn data suggests the team has grown to four employees.

Total capital raised during 2026 has reached £293.1k following this latest transaction. This follows a larger funding period in 2025, when the business secured £1.3m in total. Formal documentation for the current allotment was filed in July 2026.