| 2005 Ethics Institute of South Africa |
| 2002 Institute for Future Research |
| 2002 South African Property Owners Association (SAPOA) |
| 2000 South African Road Federation East Cape Region |
| 2000 Institute of Municipal Engineers of S.A. |
| 1999 Port Elizabeth Regional Chamber of Commerce and Industry |
| 1999 Affiliate member of the Institute of Municipal Engineering of S.A. |
| 1999 Western Cape Investment and Trade Promotion Agency. |
| 1997 Contractor’s Plant Hire Association |
| 1997 SAFCEC Eastern Cape |
| 1995 Institute for Housing of South Africa |
| 1995 National Home Builder’s Registration Council |
| 1994 Cape Chamber of Commerce and Industry |
| 1994 Metal and Engineering Industry Education and Training Board. |
| 1994 Southern African Association of Civil Engineering Laboratories |
| 1992 Southern African Bitumen & Tar Association |
| 1991 Master Builders Association |
| 1990 Southern African Road Federation |
| 1988 Hottentots Holland Chamber of Commerce |
| 1987 Bellville Chamber of Commerce and Industry |
| 1985 Helderberg Afrikaanse Sakekamer |
| 1983 SAFCEC (South African Federation of Civil Engineering Contractors) |
