Diploma Group was an ASX-listed construction and property development company. It went into voluntary administration on December 22, 2016, with Grant Thornton appointed administrator and Ferrier Hodgson receiver. Grant Thornton was appointed as provisional liquidator on September 6 2017. It previously had a portfolio of commercial, retail, and residential developments in Australia. Its Construction division offers a range of construction services, including design and construct agreements, construction project management, site management, construction management, construction supervision, contracting services, and above ground and below ground construction work.