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OPUS is a leading international multi-disciplinary consultancy. Our people are at the forefront of award-winning and innovative projects. We are a global company providing excellent solutions to a wide range of clients. Our people and the services they provide are our greatest asset. It is part of our corporate philosophy to encourage our people to develop and reach their full potential and in so doing contribute to our success. Today, OPUS has around 2500 staff in offices and laboratories throughout Australia, Canada, the United Kingdom and New Zealand.

Opus Qantec McWilliam Questions

The Opus Qantec McWilliam annual revenue was $629.1 million in 2026.

Opus Qantec McWilliam is based in Brisbane, Queensland.

The NAICS codes for Opus Qantec McWilliam are [333, 33, 3339].

The SIC codes for Opus Qantec McWilliam are [353, 35].

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