One of those key bits of information pertains to the clients of third-party or independent planners. We sometimes don't disclose who our clients are. Why? Clearly, we feel vulnerable or distrustful, or this would be no big deal.
It's unfortunate, but some of us have been burned before, or heard horror stories from peers - stories about suppliers who tried to steal clients by going behind the planner's back and trying to cut them out of the deal. Terrible, right? But also terribly rare, in my opinion. It's never happened to me in 20+ years, but then again, I just heard last week from a colleague that a hotel in China tried to cut him out of the deal and contacted his client directly when he eliminated them as an option.
My advice to planners: share your client's company information with your suppliers. You may not think it matters, but if you withhold that information, you could run into problems like competitors unknowingly booked in the ballroom next door.
My advice to suppliers: we typically withhold information only from suppliers we don't trust. Continue to build that trust, and keep reminding us we're in this together - sometimes we forget that.