The Bristol startup’s patented tech preserves vaccines at up to 50C, cutting costs and waste in global drug distribution.
Bristol-based biotech startup EnsiliTech has raised £4.5 million in seed funding to scale its technology for transporting vaccines and vital medicines without refrigeration. The round was led by Eos Advisory with participation from Calculus Capital, Empirical Ventures, Fink Family Office, QantX, Angel Investors Bristol, HERmesea, Penn Park Capital, chANGELS, and other angels.
Founded in 2022 as a spinout from the University of Bath, EnsiliTech has developed patented methods to stabilize vaccines, antibodies, and enzymes for storage at temperatures of up to 50C. The innovation aims to replace costly, energy-intensive cold-chain systems that dominate the biopharmaceutical supply chain.
“Our mission is to ensure that life-saving medicines and vaccines reach everyone, everywhere, regardless of infrastructure or geography” said Dr. Asel Sartbaeva, co-founder and CEO of EnsiliTech. “By eliminating the need for refrigeration, our technology significantly reduces supply-chain costs and drug waste, while lowering environmental impact.”
The technology is designed to improve vaccine distribution to regions without reliable refrigeration, addressing both global health equity and environmental sustainability.
“EnsiliTech has the technology to transform how vaccines and other therapeutics are transported and stored” said Anne Muir, director of portfolio at Eos. “Reducing wastage, reducing cost and vastly improving health outcomes across the globe, this kind of science and this scale of potential sits at the core of our investment thesis.”
The company previously raised £1.2 million in 2023. The new funding will accelerate commercial development and expansion of its transport systems for biopharmaceuticals.



