Apeks Marine Equipment Ltd., headquartered in Blackburn, Lancashire, England, specializes in manufacturing high-quality scuba diving equipment. Renowned for its diving regulators, particularly suited for cold water environments, and dry suit valves supplied to numerous dry suit manufacturers, Apeks products are trusted by various military and emergency services, including the Royal Navy. Established in 1974 by Ken Ainscough and Eric Partington, the company's name is derived from an anagram of their initials. In 1997, Apeks was acquired by Aqua Lung, further solidifying its position in the diving equipment industry.