About Us

RPS Harper Somers O’Sullivan (RPS HSO) is part of the RPS Group of companies, one of the world’s leading planning and development, environmental management and energy consultancies. Harper Somers O’Sullivan joined the RPS Group in 2006.

RPS employs around 5,000 staff based in offices located in the U.K., Ireland, The Netherlands, Poland, North America, Australia & Malaysia. RPS allows RPS HSO to provide an enhanced and expanded range of high quality and integrated services to clients.

This provides the ability to share specialist resources both within Australia and South East Asia and between our global RPS Offices and regions offering our clients improved efficiency and facilitating the delivery of integrated services for their projects.

The RPS Group is a global company publicly listed on the London Stock Exchange subject to full independent audit and open disclosure protocols