Virun is a biotechnology company established in 2003 that focuses on using particle augmentation to improve the delivery of compounds and peptides. It has facilities in California and China and 48 employees. Virun develops delivery technologies for food/beverages, supplements, drugs, and aims to target specific cells to promote therapeutic effects. Its MAPD technology binds peptides to transferrin, allowing oral administration and avoiding digestion, with near 100% bioavailability compared to injections.