About Us



  • Double Z Computer is a leading business to business eCommerce/EDI solution provider. We have over 20 years experience in EDI and during this time have provided solutions to many hundreds of clients around Australia and New Zealand.

    Our aim is to ensure that the process of electronic trading is made as simple as possible with minimal cost outlays but maximum benefit. This means that any company, whatever the size, can enjoy the benefits of our various EDI Solutions.


    Our Team


    Harold and Ralph Zwier are the founders and directors of Double Z Computer Pty Ltd.  Both are software developers with numerous years of experience in computer programming and development.  Harold and Ralph have a very hands-ons approach to servicing our client base with efficient, effective and economical solutions to the E-Commerce challenges faced by Australia's business.


    Katie Burt is our Office Manager.  Katie has been with the company since 2000 and manages the running of the office.  Katie is a very capable office administrator who enjoys a great relationship with all our clients, also supplying the team with humour and banter. Her experience in work rolls into a basic level of technical knowledge.

  • katie@doublez.com.au 



Mitchell Dobelsky is our Sales/Marketing/Relationships Manager. Mitchell's experience is extensive covering Sales, new business development and Operations Management in industry over a period of 30+ years.



Jenevieve (Jen) Soria is our Software Analyst handling our mapping and integration. She'll make sure your Accounting/ERP/WMS applications work seamlessly with EDIPlus.


Thomas Bryant (Tom) is the latest addition to our family. Tom is our Level 1/Level 2 Support person. His bright and friendly style makes solving your problems a less stressful event.


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