desperately looking fot the updated usa wine importers list

[salmanazar]

I'm the french agent for a group of 20 small french champagne producers who intend to sell in the long term their very delicate wines with typical < goûts de terroir > from 2001 forth on the quite sophisticated american market .
As you know, because of the 3 tier system, I have to contact exclusively the us wine importers to enter the market with my champagnes .
I can't find any such list on the web except the us wine wholesalers list which isn't of a great use for me ( except a few importers operate as wholesalers too ! ).
Can anyone kindly advise me how to find such an important list on the web or elsewhere ?
thank you very much in advance