"There was a gap in the market for integration of CMS and BPM," Oxer said. "Customers started using user management systems as a contact database for their business and we built CMS functionality around it. From that it grew into adding in more business process functionality and that's where the majority of our effort has been for the past few years."

Other SiteBuilder users include Siemens Australia, Victoria University, and the Public Relations Institute.

The deployment platform for SiteBuilder is open source, which Oxer says has allowed IVT to focus on the value-add component on top without worrying about licensing fees for the underlying platform.

"And we have good visibility of platform so we can customize it," he said.

SiteBuilder itself is not open source, but Oxer believes it is "inevitable" that it will be.