Centerport Clam/Rbsi

They sell wonderful dry scallops, not the awful tri-sodium pumped scallops.  It's not what you'd expect to find on a back country road. I expect that their fish is likewise good, but their selection of fresh (versus frozen) has been limited on the Saturday mornings I've been.

It LOOKS like a warehouse in the middle of nowhere and it IS a warehouse in the middle of nowhere.  I don't know who this wholesaler delivers to, but walk-ins are welcome.  Every year, I drop a small fortune here.  

Center Port (don't know where the nearest port is...this is surrounded by pastures) sells a good variety of great quality seafood (at least for what can be expected in the middle of farm country in upstate NY)  My Christmas Eve dinners are a seafood extravaganza and it all pretty much comes from Center Port.  The staff is friendly and helpful.  If you need preparation advice, they'll give it.  I've paid with cash and with checks over the years.  If you live in the area (or in my case-within a 45 mile radius), at least check it out.