Founder: John Emary
Year Founded: 1851

Aquascutum may be well less known today than Burberry, but it played no small role in helping popularize British outerwear. The company's founder, a tailor by the name of John Emery, is credited with having invented waterproof wool, hence his company's name, which means "watershield" in Latin. Since its founding, the brand has outfitted notables such as Humphrey Bogart, Winston Churchill, Cary Gant, and Edmund Hillary (significantly, for his historic climb of Everest). They also made one of King Edward VII's riding capes, tailored from a fabric the King designed himself (the famous Prince of Wales check). The King was so impressed with the work that he granted the company a Royal Warrant.