In 1920, Edward Ezra Rosen formed Edward E. Rosen & Co. to produce wide frequency speakers and headphones. Rosen and his company marketed the new product (called Ultra) at the British Electric Manufacturing Company (BECO) in 1924. The success of the product culminated in the incorporation of another company called Ultra Electric Ltd, which is the forerunner to Ultra Electronic Holdings Plc. Previously, Ultra focused on producing radios and radio receivers. However, the company expanded to aircraft manufacture for use during WWII. In 1977, Dowty Company bought Ultra and formed Dowty Group, which was later acquired by TI Group Plc. A management buyout in 1993 gave birth to Ultra Electronics Ltd. company as it is known today.
Today, Ultra operates in the aerospace, cybersecurity, energy, and transport sectors. Operations are divided into the Communications and Security segment, Maritime and Land, and Aerospace and Infrastructure segments. The company trades on the London Stock Exchange as ULE and is headquartered in London.