RounderBum, underwear for men, was started by Jonathan Diersing in 2015. As of April 2024, RounderBum net worth is $3.1 million. And they’re pulling in a whopping $395 million in annual revenue. 

In January 2018, they appeared on season 9 of Shark Tank USA. And made a deal with  Kevin O’Leary, for $150,000 for 5% of equity. The final valuation was $3 million, above from the founder’s initial estimate of $1.5 million.

RounderBum is still in business. The company is known for its underwear that is designed to enhance the appearance of the buttocks. Visit their official website to know more details about their business and products. 

RounderBum Net Worth

Net worth$3.1 million (2024)
Annual Sales Revenue$395 million (2023)
ProfitsNot publicly available
Lifetime salesNot publicly available
InvestorKevin O’Leary
FounderJonathan Diersing
EmployeesNot publicly available

RounderBum Net Worth Timeline

Net Worth 2024$3.1 million
Net Worth 2023$3 million
Net Worth 2022$3 million
Net worth valuation 2018 after appearing on Shark Tank  $3 million
Net worth valuation 2018 before appearing on Shark Tank  $1.5 million

RounderBum Pitch on Shark Tank

Company nameRounderBum
ProductUnderwear for men
EpisodeSeason 9 Episode 18
Founder Jonathan Diersing
Asked for$150,000 for 10% equity
Final deal$150,000 for 5% equity
Shark Kevin O’Leary
LocationLos Angeles, California

Don’t miss these product from Season 09

RounderBum Founder

Jonathan Diersing found RounderBum in 2015. He is an entrepreneur and inventor with a passion for helping men feel more confident about their bodies. RounderBum’s founder, Jonathan Diersing, net worth is unavailable. However, according to the deal of the Shark Tank pitch, Jonathan Diersing has 95% equity in the company.

Key accomplishments

2018Appeared on Shark Tank season 09 and Kevin O’Leary invested $150,000 for 5% equity
2019Expanded product line to include swimwear and activewear.
2020Featured in GQ, Men’s Health, and Forbes


From their beginnings on Shark Tank to their current status as a thriving business, they have proven that with the right idea and execution, anything is possible. We can’t wait to see the future for RounderBum and its continued success.

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