MARQUIS ASSOCIATES was founded in July 1994 by its Chief Associate, David Hemsley. He is supported by Norma Marquis Hemsley. Other associates are employed on an ad-hoc basis for specific assignments directly with clients throughout the UK. It is also a Chemical Engineering Consultant to Enthone-OMI, a leading company in surface finishing technology.
MARQUIS is a chemical engineering based consultancy able to draw upon a broad range of expertise in process chemistry, chemical engineering unit operations, process and utilities plant design, automated process control and chemical analytical procedures.
MARQUIS has a substantial capability and experience in areas designed to reduce operational costs within the context of the environmental challenge.

DAVID HEMSLEY is a graduate Chemist and Chemical Engineer. He founded MARQUIS after a career taking in nuclear energy, fertilizer manufacturing technology, process plant contracting and surface finishing.

DAVID HEMSLEY is an Advisor/Counsellor on the ENVIRONMENTAL TECHNOLOGY BEST PRACTICE PROGRAMME HELPLINE and has assisted the ETBPP in presenting water conservation papers at its 'Road Shows'. He was also responsible for the FROST ELECTROPLATING conservation project which became Case Study GC22 - published in March 1996 and available free of charge from ETBPP - Helpline 0800 585794
Marquis Associates, 5 Church Street, Old Woking, Surrey, GU22 9JE
Tel. 01483 723176 ..Fax. 01483 757049