Formerly known as the Corps of Commissionaires, Corps Security is a British security company that officially speaking reports to Queen Elizabeth II. Established in 1859, it is said to be the world’s oldest security firm, and today it has a team of about 3,000 security personnel plus a dozen offices throughout the U.K. The company’s specialty is corporate security – including event protection, electronic surveillance, and consulting. According to its official website, Corps Security is “the leading supplier of specialist security solutions.” Dressed, upon request, in the company’s iconic Commissionaire Uniforms, Corps Security’s event protection unit secures high-profile sporting sites like Wembley Stadium and has a presence at important annual affairs such as the London Lord Mayor Show. Other services include manned guarding, CCTV surveillance, alarm response and key holding.