[2] The company was founded in August 1988 as Multi-Venture Partners, Inc. in Florida by Tim Gannon, Bob Basham, Trudy Cooper, and Chris Sullivan.

[5] Prior to the company becoming OSI Restaurant Partners, LLC, Outback Steakhouse Inc. owned Paul Lee's Chinese Kitchen, Cheeseburger in Paradise, Lee Roy Selmon's, Bonefish Grill, Roy's, Carrabba's, Fleming's[6] and Zazarac brands.

[7] On June 14, 2007, OSI Restaurant Partners completed a stock repurchase plan, and the company became privately held.

In April 2012, OSI filed with the Securities and Exchange Commission to raise up to $300 million in an initial public offering.

"[9] In August 2023, it was announced the New York-headquartered hedge fund, Starboard Value, had acquired a 5% stake in Bloomin’ Brands for an undisclosed amount.