No need not to disclose, Nanct Bogert happens to be the agent CruiseMates uses most often to organize our CruiseMates group cruises.
She truly earned it, we always tried to get bids and find the best provider for every group cruise we did, Nancy ended up winning year after year and that is the truth.
There are other really good discount cruise sites and we have worked with many of them...
The ones mentioned in notes above as well.
All of these agencies are long-standing, cruise-focused agencies that sell cruises inbulk at the best prices. They have great relationships with the cruise lines and should be able to get things done.
There are more as well, I am not trying to give a complete list here.
The people we urge you to avoid are NON-cruise specialists like Travelocity, Expedia, etc.