Oza began his career in the town of Slough as the manufacturing manager behind Mars' M&M's.[3]
Oza got his start in marketing by advertising Snickers for Mars, Incorporated in Europe. He later was hired as a marketing manager for The Coca-Cola Company.[2]
He has been credited for revitalizing the Sprite brand by signing Kobe Bryant as a spokesperson.[2] Oza also worked with Andy Roddick, Michael Vick, Tom Brady, LeBron James, Jennifer Aniston, Gal Gadot, 50 Cent, Ne-Yo, Rihanna and Madonna as celebrity endorsements.[2][4]
He left Coca-Cola in 2002 to join Glacéau, most famous for their Vitaminwater brand.[2] In 2007, Coca-Cola purchased Glacéau in an acquisition for $4.2 billion, expanding the company's non-carbonated portfolio.[5] Rohan was appointed Chief Marketing Officer of Coke's still brands, where he stayed until 2009.[2]
As an investor, Oza made an early bet alongside Justin Timberlake on Bai Brands and helped persuade the Dr Pepper Snapple Group to buy the company for $1.7 billion. Additionally, he has backed Smartwater, Bulletproof Coffee and Health-Ade Kombucha.[4][6]
Oza has also been a recurring guest “shark” for ABC’s Shark Tank. On Shark Tank, Oza invested $400,000 in what was then known as Mother Beverage, later rebranded Poppi soda, for a 25% equity investment. On March 17, 2025, PepsiCo announced acquisition of Poppi, a prebiotic soda brand created in Austin, TX for $1.95 billion.[7]
He serves as an advisor to Impact Network, a non-profit organization bringing quality education to rural Zambians.[8]