High Quality Content by WIKIPEDIA articles! AE Smith Son Pty Ltd (or AE Smith) is the largest privately owned commercial air-conditioning and mechanical services contractor in Australia focusing on heating, ventilation, air-conditioning, electrical, controls, fire protection, construction and commissioning. As a Business Review Weekly Top 500 Private Company, the company employs over 700 people today and has been family owned for over 100 years since the beginning of the company in 1898.