The overall winner's Growth Grant is $40,000 cash and $10,000 worth of free advertising.
Westpac's Napier-based commercial manager, Richard Wilson, said the initiative follows a survey of businesses identifying barriers to growth.
"Two themes that came through were a lack of business mentors or people to go to if you are in small business and the second constraint was around capital," he said.
"It is a bit like the Business Awards in that, by going through the process - not quite as in-depth as a formal judging process of every business - it hopefully prompts some questions and thoughts to get you thinking about what you could be doing."
A panel discussion to follow today's speakers will consist of EIT Associate Professor Business Dr Jonathan Sibley, NOW chief executive Hamish White and business and marketing consultant Ailne Bradley.