Callcott & Downey Engineering Services
- Provides a range of engineering and machinery services. Company profile, services provided and contact details provided.
- http://www.callcott-downey.com.au/

Direct Engineering Services Pty Ltd
- Air conditioning and refrigeration engineers, also offering electrical and mechanical engineering and equipment manufacture. Services list, projects, and locations included.
- http://www.directeng.com.au/

Hartway Galvanizers
- Information on projects and applications. Company history and contact details.
- http://www.hartway.com.au/

Echotech
- Specializing in the design, supply and maintenance of sophisticated air and water monitoring equipment and systems.
- http://www.ecotech.com.au

A.D. Engineering
- Designs and manufactures LED, Fibre Optic and Flip Dot signs, communication equipment, PA, background music and evacuation systems.
- http://www.adengineering.com.au/