Our History


Mr C M (Gerry) Calder establishes an engineering firm based in Chinchilla, working as the sole practitioner. A man of many talents, Gerry Calder held a Master of Engineering, was an Authorised Surveyor and also acted as a Barrister of the Supreme Court of Queensland. Proudly, he also undertook the survey for the Queensland and Brisbane River landmark, the Story Bridge.


Mr Graham Brandon commenced as a Partner in the firm that was renamed ‘Calder & Brandon’. Following the death of Mr Calder in a car accident in March 1975, the total staff consisted of Mr Brandon and Company Secretary John McQuaid.


The firm was renamed ‘GJ Brandon & Associates’ and continued to trade under this name until it was changed to ‘Brandon & Associates’ in 2000.


Landmark year for our Roma office, after many years based in the Roma Town Council offices, Brandon & Associates established a permanent engineering office in Roma.


Brandon & Associates expanded to Toowoomba to develop into new markets and improve our ability to service existing clients locally. In 2005, the Toowoomba office relocated to our current premises due to growth and our ongoing success as a business.


From humble beginnings with only one staff member, Brandon & Associates now employs over 40 people across the Darling Downs/South-West regions and Central Queensland. Brandon & Associates has also built on its initial client base of four regional shires (Chinchilla, Murilla, Taroom and Bendemere) and has since established long term relationships with many Councils in South-West and Central Queensland. Today, we provide professional services to various private enterprises, not for profit organisations and many Local Governments throughout southwest, central and western Queensland, including Western Downs Regional Council, Maranoa Regional Council, South Burnett Regional Council, Southern Downs Regional Council, Bulloo Shire Council, Paroo, Central Highlands Regional Council, Quilpie Shire Regional Council, Murweh Shire Regional Council and the Toowoomba Regional Council among others.

Story Bridge under construction October 1939
Story Bridge under construction 1939
Story Bridge under construction 1939
Story Bridge under construction circa 1936