Loading organizations...
§ Private Profile · Sheffield, Sheffield, United Kingdom
Startup develops porous silicon anode materials for lithium-ion batteries, focused on electric vehicles and energy storage.
Based in Sheffield, United Kingdom, AmpliSi develops proprietary porous silicon anode materials designed to replace graphite in lithium-ion batteries for electric vehicles and energy storage systems. The company utilizes a novel low-temperature manufacturing process to convert abundant silica into silicon, aiming to increase energy density while reducing the hazards, costs, and emissions associated with conventional production methods. To support its transition from laboratory research to industrial scale-up, the pre-seed startup recently secured £2 million in early equity funding led by Northern Gritstone and Clean Growth Fund. Under the leadership of Chief Executive Officer Dr. Ruth Sayers, the firm is actively engaging with battery manufacturers and mobility sector supply chains to commercialize its technology. AmpliSi was founded in 2025 as a technology spinout from the University of Sheffield by Professor Siddharth Patwardhan and Dr. Gwen Chimonides.
AmpliSi has raised $266.0M across 1 funding round.
AmpliSi has raised $266.0M in total across 1 funding round.
AmpliSi has raised $266.0M across 1 funding round. Most recently, it raised $266.0M Pre-Seed in March 2026.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Mar 17, 2026 | $266M Pre Seed | Clean Growth Fund, Northern Gritstone | — | Announced |
AmpliSi has raised $266.0M in total across 1 funding round.
AmpliSi's investors include Clean Growth Fund, Northern Gritstone.