Dr Paul Carey founded Zero Energy Design Ltd in 2006. He has been working in the field of building services engineering and building energy management for over 25 years and since the mid 1990's has been working in the field of building energy simulation and ventilation modelling.
In June 2009, Zero Energy Design Ltd also formed a joint venture company with the multidispclinary practice G&P Professionals in Malaysia called ZED G&P Sdn. Bhd. ZED G&P was formed to service the growing Asian market for sustainable design and allows a great depth of combined services that both ZED and G&P can offer as a multidisciplinary practice in that region.