Langham Industries, the parent company of Stone Foundries, is a privately owned group with global business interests in the maritime, aerospace and other engineering industries. For further details see www.langhamindustries.co.uk

Stone Fasteners, located on the same site on south-east London, also trace their origins back to Josiah Stone in 1830.  Today, Stone Fasteners manufacture precision aerospace rivets in a range of materials including aluminium, monel, stainless steel and nimonic.  For further details see www.stonefasteners.com

Tridan Engineering, based in Clacton, Essex, supply precision CNC machined components for a wide range of applications In the defence, medical, aerospace and other engineering industries.  Tridan provide datum and finish-machining services to Stone Foundries which enables supply of finished parts to aerospace and defence companies.  For further details see www.tridan.co.uk