Architectus is Australasia's leading commercial architecture practice with over 850 staff across 12 studios throughout Australia and New Zealand. Architectus is a trusted design partner to major public and private sector organisations investing in Australia and New Zealand's infrastructure across a range of sectors. These sectors include Health, Defence, Education, Aviation, Rail, Data Centres, Living, Commercial, Public Buildings, and Industrial.

The business has designed many landmark buildings and spaces across Australia, including major transport hubs, universities and schools, office buildings, cultural sites, and public spaces. Led by over 75 Principal architects, Architectus is known for its collaborative culture and leadership in digital design and AI deployment, and has been recognised with over 150 national and international architectural design awards over its 20+ year history.

Mercury acquired a 50% shareholding in Architectus in October 2021.