JN Bentley is part of the global management, engineering and development consultancy Mott MacDonald, offering our clients ful ... l feasibility, design, construction and engineering services throughout the UK. As a business we directly employ over 1500 people, inclusive of our large site-based weekly resource. We have a turnover in excess of £300 million, generated from projects in both the building and civil engineering markets and delivered by our water utilities design and build business Mott MacDonald Bentley (MMB), our environmental design and build business JBA Bentley (JBA-B) and directly by JN Bentley. read more