HISTORY

Roger Dane

Sigma Air Conditioning – more than 65 years of experience in HVAC technologies

Old Sigma building in Lidcombe

1956

• Roger Dane & family founded Sigma Air conditioning in Sydney

1987

• Acquired Clima's Mining Business

1990

• New Entity Sigma Industries

• SIGMA release our New E&T Series HVAC Products

1995

• SIGMA Air Conditioning business sold to Air International Group (Parent Company Futuris Group) Business Name now refers Air International Transit

2007

• Air International Transit business sold ANZ and Private Investors

2010

• Knorr-Bremse Australia buy SIGMA Coachair Group

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