Josh Holm founded his LA-based clothing brand Castles & Queens in 2021 initially to design and produce protective equipment for frontline workers in local hospitals. The brand has since entered the high fashion world. In 2022, the brand was invited to participate in New York Fashion Week and was listed among top ten emerging designers to watch by Nylon Magazine. Castles & Queens has produced five collections and is currently stocked at global New York luxury retailer Wolf and Badger.