Alpha 3 Manufacturing Limited is the parent company of two manufacturing businesses: - DEM Manufacturing (Lincolnshire) incorporating: - Deltron Enclosures of Electronic Enclosures - Roxburgh EMC of EMC Filters - Deltron Components of Video, Audio and 4mm Connectors - BES of Broadcast Patching Products. - Tekdata Interconnections Limited (Staffordshire) - specialist provider of custom cabling and connections within niche market sectors such as Avionics, Space, Cryogenic, Defence, Medical, Instrumentation and Autosport.