StoneStable

StoneStable is a private Portland, Oregon biotechnology company developing a silica-based stabilization platform for vaccines, viral vectors, and other biological products. Its core technology applies a reversible silica coating designed to improve thermal and chemical stability, reduce reliance on cold-chain logistics, and in some cases enhance immune response or gene transfer efficiency. The company originated from technology developed at Portland State University and has been positioned as a platform company rather than a single-asset therapeutics developer. StoneStable's work has focused on vaccine preservation and broader applications in cell and gene therapy manufacturing, storage, and distribution. The company appears to remain an early-stage, privately held biotech with platform validation work supported by investors and non-dilutive funding.