Some pretty prominent companies produce various private-label products for Costco. Here's the big name that makes Kirkland ...

Narrator: Costco is one of the most popular big-box stores in the United States. It's known for selling everything in bulk from toilet paper to seafood. Jerry Seinfeld: Look at this can of tuna.

He’s been to Costco Wholesale stores at least 500 times, he said. Shoppers stop for free samples of Tonnino Yellowfin Tuna on ...

Albacore and skipjack are the two most common species of tuna that are canned. Skipjack has a strong, fishy flavor and can be ...