Marucci Sports is an American sports equipment manufacturing company based in Baton Rouge, Louisiana. It focuses on baseball equipment, specifically producing bats, balls, gloves, batting gloves, batting helmets, and chest protectors.

On November 15, 2023, three years after being acquired by the investment firm Compass Diversified Holdings,^[1] the company was purchased by Fox Factory for 572 million dollars.^[2]

Marucci's bats were the most used in the MLB, with more than 40% of players.

Jack Marucci, LSU athletic trainer,^[3] built his first baseball bat after he unsuccessfully tried to find a suitable one for his son Gino. The bat-making was just a hobby until Marucci associated with two MLB players, Kurt Ainsworth and Joe Lawrence. Ainsworth began recommending Marucci's bat to other players, and in 2009 he became one of Marucci's co-founders.^[4]

As of 2013, Marucci bats were used by one-third of Major League Baseball players, like David Ortiz, José Bautista, Albert Pujols, Chase Utley, Anthony Rizzo, Giancarlo Stanton, and Bryce Harper.^[5][3] In a relatively short period of time, Marucci took a large share of the baseball bat market from longtime industry leader Louisville Slugger, with industry tracking publications validating #1 bat in the majors since 2013 by a wide margin.^[6][7]

While in 2006 Marucci supplied 4% of MLB players, by 2016 the company supplied 40%, with about 400-500 bats made a day.^[3]

In 2020, Marucci Sports was acquired by American investment group Compass Diversified Holdings^[8] for USD 200 million.^[1]

They have made bats known as the Cat 6, Cat 7, Cat 8, Cat 8 Connect, Cat 9, Cat 9 Connect, and Cat 9 composite for USSSA baseball and BBCOR baseball. They have also made the Marucci F5, Marruci Cat, and Marucci Cat Connect for USA baseball which is mainly used in little league.