A H Marks and Company Limited is the UK's largest privately owned and independent chemical manufacturing company, employing over 350 people and operating from a single 11 hectare site at Wyke, near Bradford. Chemicals have been produced at the Wyke site since 1877, when dyestuffs were produced for the local textile industry. Today, the company manufactures a wide range of specialised organic chemicals for a variety of end use sectors. Key customers served include...