With origins in a former New Zealand government entity (the Ministry of Works and Development - formed in 1870), Opus is long established as a professional services consultancy for the provision and design of infrastructure.  

In its transition from the Ministry of Works and Development to a fully privately owned company, in April 1988 Opus became the Consultancy Division of the State-Owned-Enterprise, Works and Development Services Corporation NZ Limited.  In November 1996, Works Consultancy Services was sold to Kinta Kellas of Malaysia and the company subsequently changed its name to Opus International Consultants Limited (Opus) in April 1997.

Opus’ international experience spans a period of over 50 years and has included over 100 projects in more than 20 countries. In 2002 and 2006, Opus was recognised as the Trade & Enterprise New Zealand Services Exporter of the Year for its work in international markets.  Opus was also named Trade New Zealand’s Supreme Exporter of the Year in 2006.

Our business in the United Kingdom was established in London in 1989. Following mergers with Evans Grant Consultants, Veryards Consulting, Hastings Clements and Leach and Joynes Pike. Opus now operate from a network of 12 offices in the UK.

In Australia, Opus established businesses in Western Australia (established in 2000), Queensland (also established in 2000) and Sydney (established in 2003) through a merger with Tierney and Partners.   In 2007, Opus acquired the large Australian based infrastructure consultancy Group 42 and Qantec McWilliam Consulting Engineers.  In 2012, Opus acquired Victorian-based Coffey Rail and its related company Asia Pacific Rail Pty Ltd, taking the number of Opus offices in Australia to 19.

In Canada and the United States, Opus has offices in Fredericton (New Brunswick) and Victoria (British Columbia) and through a merger with Hamilton Consulting in Vancouver, Kelowna, Calgary and Detroit. In May 2008, Opus acquired Project Engineering Ltd in Fredericton to combine with the present Opus Fredericton business. In November 2010, Opus acquired Dayton & Knight adding offices in Abbortsford, Smithers, Prince George and a second office in Vancouver, bringing the total number of offices to 10.