Geotech Testing Pty Ltd Home ›› Local Listings ›› NSW ›› Penrith ›› Geotech Testing Pty Ltd NSW Environment Penrith, NSW 2750 Tony O'Brien02-4722-2700https://www.geotech.com.au Geotechnique Pty Ltd is an environmental consulting company in NSW focused on the development of a wide range of environmental consultants and geotechnical services. Geotechnique is an employee owned and managed Australian engineering firm providing multi-disciplinary engineering consultancy services to the development and construction industries.