No one will actually share you that information. You might find people posting some drop shipping directory addresses but No one in their right sense will share you their actual drop-shipper, it will be adding one more to the competition. Most sites provided above are the middle man, not even a dropshipper. You have to learn by yourself. Do some research, find a niche market, try contacting the manufacturers. Thats the max I can tell.
I agree with infantryvet. I used to drop ship some items. Just searching for the item you want and dropship or searching for the item and visiting all the sites and looking for some sort of dropship/ wholesale link on the site usually works. You have to watch out for their quality of service though. It took a company a month to ship a product that a customer ordered. Made me look really bad. Ask for references from them before you get in deep.