The Upper Deck Company, LLC (colloquially as Upper Deck and Upper Deck Authenticated, Ltd. in the UK), founded in 1988, is a private company primarily known for producing trading cards.
 

Paul Sumner, who worked in printing sales/, came up with the idea for a premium card and hired Robert Young Pelton to design and produce a prototype. Pelton's agencies, Pelton & Associates and Digital Artists, was replaced by Chiat Day. Paul Sumner resigned with the understanding that he would be known as the "Co-Founder of Upper Deck", something that the company's owner and CEO, Richard McWilliams, recognizes to this day.
 

The company has exclusive agreements to produce memorabilia (under the brand name Upper Deck Authenticated) with such sports superstars as Michael Jordan (who is also on the board of directors), Kobe Bryant, Tiger Woods, LeBron James, Albert Pujols, Kevin Durant, Sandy Koufax, Shawne Merriman, and Ken Griffey Jr. Former Major League relief pitcher De Wayne Buice was a partner, and was instrumental in negotiating Upper Deck's first license with the Major League Baseball Players Association.

On December 23, 1988, Upper Deck was granted a license by Major League Baseball to produce baseball cards. The first case of Upper Deck Baseball Cards was delivered February 28, 1989, to George Moore of Tulsa's Baseball Card Store in Tulsa, OK. The Upper Deck Company sold out its baseball cards midway through this inaugural year, then pre-sold its entire 1990 baseball stock before the year began. The 1990 set included the industry's first randomly inserted personally autographed and numbered cards of sports superstars.
 

On March 20, 1990, The Upper Deck Company was granted licenses by the National Hockey League and National Hockey League Players Association to produce hockey cards. The company also obtained licenses from the National Football League and the National Basketball Association in 1990, making the Upper Deck Company the first trading card company in 10 years to be licensed by all four leagues. In 1995, the company produced its first racing product. In 1996, it expanded its racing line when it absorbed Maxx. Upper Deck was also the first to insert swatches of game-used material into cards when it made jersey cards in 1996 UD Basketball. The insert set was called Game Jersey and a similar set followed in baseball the next year, where UD cut up game used jerseys of Ken Griffey, Jr., Tony Gwynn and Rey Ordonez.

In July 2005, Upper Deck won the liquidation auction of former competitor Fleer-Skybox International's brand name, assets, and business model, as well as the Fleer Collectibles die-cast business assets.

In March 2007, Upper Deck made an offer to buy competitor Topps and competes with Madison Dearborn Partners and Tornante Company. Upper Deck is currently in litigation to stop the sale.

Upper Deck originally included the year of the trading card set's release on its logo, with the "19" above "Upper" and the last two digits of the year under "Deck" (but both inside the green diamond). This was practice was dropped midway through the 1994 season. In 2008, Upper Deck retired the green diamond logo and replaced it with a new design that it could better utilize to market all of it's products

Upper Deck premiered its NBA Exquisite Collection line in the 2003-2004 season. Each pack contained five basketball cards; one veteran base card numbered to 225, one autographed rookie card featuring a piece of patch worn by the player numbered to 99 or 225, one game worn jersey card, one autographed/patch insert card, and a fifth card that was either a low numbered parallel or an additional autographed patch card. Suggested retail price of the product was $500, making it the most expensive basketball card product ever produced at the time. (The few packs that remain unopened now sell for over $4,000.) Autograph cards include veterans such as Michael Jordan, Patrick Ewing, Kobe Bryant, Kevin Garnett, LeBron James, Dwayne Wade, and Carmelo Anthony. The most sought after cards from the line include the autographed/patch rookie cards numbered to 99 (LeBron James, Darko Milicic, Carmelo Anthony, Chris Bosh, Dwayne Wade, and Udonis Haslem), the Limited Logos inserts which feature an extra large jersey patch piece and autograph, and the autographed/patch rookie parallels serial numbered to the player's jersey number.

In view of the series' success, the company has released 2004-05 and 2005-06 basketball sets, a 2005 football line, and an analogous 2005-06 hockey line called The Cup.