Nigel Lingwood

Digital Unlimited Group Ltd. is a holding company, which engages in marketing services. It delivers a range of digital and technology-based marketing solutions to blue-chip global clients. The company was founded by Don H. Elgie on December 19, 1925 and is headquartered in London, the United Kingdom.

Part of Diploma Plc, Napier Group Ltd. is an investment holding British company. The company is based in London, UK. Founded in 1974.

Part of Diploma Plc, FPE Seals Ltd. is a leading worldwide distributor and manufacturer of hydraulic and pneumatic seals, seal kits, cylinder parts, and associated products for the hydraulics industry. Founded in 1984, the company is based in County Durham, UK. FPE Seals offers a comprehensive range of polymeric seals and hydraulic cylinder parts for all engineered applications, including a next-day dispatch service. The British company also provides tools for measuring and fitting seals and cylinder components. The company has extensive experience in providing sealing solutions for various equipment and applications used to process and produce food and beverages, having worked closely with customers in this industry for many years. The company's Rod Seals are manufactured to the highest specification at their state-of-the-art manufacturing facility.

Hawco Ltd. is a specialist supplier of components for commercial refrigeration, industrial processes, and comfort cooling. The company is based in Godalming, UK, and has subsidiaries in the United Kingdom. The British company provides HVACR engineers with the right equipment for cooling projects, including Diversitech coil cleaner and protection chemicals, LG air conditioning units, low-cost thermal switches, Hitachi multi-split outdoor air conditioning, recovery units, and service tools. The company also supplies industrial OEMs internationally with specialist components. The company was founded in 1973, and Martin Filmer Butler has been the CEO of the company since 1999. Hawco was acquired by Hawco /Private Group/ from Diploma Plc on April 03, 2023.

Part of Diploma Plc, a1-cbiss Ltd. is a British company that manufactures and distributes emission monitoring systems for building controls and waste incineration plants. The company is based in Tranmere, UK. The company was founded in 1989. The CEO is Peter McQue. a1-cbiss was acquired by Diploma Plc on October 10, 2006 for $11.19 million.

Part of Diploma Plc, Diploma Holdings Plc functions as an investment holding British company. The company is based in London, UK. Founded in 1931.