A tip to corporate Australia: If you are not already doing it, send in a freedom of information request after meeting with a government minister, so you can look at the briefing notes handed them before your meeting. You are unlikely to learn anything spectacular, but at least you will learn the formulas used in the corridors of power.
I'm not aware of research on corporate Australia as an FOI applicant or much in the way of public comment on the issue but recall seeing somewhere that in the US, business is among the biggest users. In Australia from what is known, it seems quite a contrast. Here is what we know from the little information available.
Again Queensland offers some insights. Other jurisdictions don't appear to publish this detail. The Information Commissioner's annual report 2009-2010 (page 29) lists applicants for review of agency FOI/RTI decisions by category-in this case companies seem reasonably represented: