Carl John Bullock

Part of Jam Topco Ltd., Jam Bidco Ltd. functions as an investment holding British company. The company is based in Wellington, UK. It was founded in 2014.

Part of Halma Plc, MK Test Systems Ltd. is a British company that specializes in designing automatic test equipment for the world's most demanding industries since 1992. The company is based in Wellington, UK. The company offers innovative automatic electrical test systems, including wire and cable testers, function test systems, slip ring testers, bond and loop testers, and more. The company was founded in 1990, and the CEO is Jason Christopher Evans. MK Test Systems was acquired by Halma Plc from MK Test Group Ltd. on May 01, 2024 for $55.09 million.

MK Test Group Ltd. manufactures automatic electrical testing solutions. It provides industrial testing solutions such as automatic electrical test, portable bond test systems, test management software, and special project divisions services to the aerospace, defense, oil and gas, rail, and power industries. The company was founded by Mike Threlfall in 1992 and is headquartered in Wellington, the United Kingdom.