Cemex, Lafarge, Castle Cement, Hansons, Marshalls, Eternit, Marley, Russel Roof Tiles, London Concrete, Stanton Bonna, Lignacite, Francis Flower, Tarmac, Linatex, Ruthin Pre Cast Concrete, Sandtoft Roof Tiles, etc

Albion Chemicals, Huntsman Tioxide, Arkema, Brunner Mond, Elementis Chromium, Rohm and Haas (UK) Ltd., WBB, Solvay, Ciba, Chemson , Dytech

ABN, Haribo, William Forest, Firmenich, Premier Foods, Dalziel, Napier Brown, Sleaford Quality Foods, Bennington Foods, Allied Bakeries, Fox's Biscuits, Ryvita, Mars, Kellogs, CP Kelco,

Sanofi, Novartis, Reckitt Benchiser, Astra Zeneca,

Didcot Power, Drax Power, South West Water, Thames Water, Yorkshire Water, Slough Heat and Power, Rugeley Power, Wessex Water

Johnson Diversey, Unilever

Victrex, BP Films, CIBA, ICI, DuPont, GE Plastics

Bells Engineering, Belvoir UK, Continental Conveyors, Chronos Richardson, Dedicated Engines, Flo Mech, LES Engineering Ltd., MJM Industrial, Nomenca, Portasilo, Stena Drilling, Rigtech, Taylor Woolhouse, Federal Mogul,