Jonathan C. B. Houlton

ISG Ltd. provides construction, fitting out and refurbishment services. Its service includes fit out, technology, construction and development. The firm provides independent commissioning management and associated services to all industries reliant on mechanical and electrical building services systems for business operations. The company was founded in 1989 and is headquartered in London, the United Kingdom.

Wates Group Ltd. provides construction services. Its services include building maintenance, facilities management, interior fit-outs, renovations and real estate development. The company was founded by Edward Wates in 1897 and is headquartered in Surrey, the United Kingdom.

Redland Plc provides materials for the construction industry. It offers concrete roof tiles, aggregates, stone quarrying, road surfacing materials, concrete products, and clay bricks. The company was founded in 1914 and is headquartered in Surrey, UK.

Apperly Estates Ltd. is a property investment company with a comprehensive portfolio of properties focused on Central London and multi-let industrial estates. The company was founded in July 1919 and is headquartered in Little Chalfont, the United Kingdom.