Jordan Katzman and Alex Fenkell are now two of the youngest billionaires in the country.

Shares of the direct-to-consumer dental product they cofounded, SmileDirectClub, began trading on Nasdaq September 12. SmileDirectClub closed down 28% after its first day of trading, but its market cap of $6.4 billion made Katzman and Fenkell – each of whom owns close to a quarter of the company’s class B shares – billionaires.

Read more: Buzzy healthcare startup SmileDirectClub just went public at an $8.9 billion valuation. Here are the execs and investors who stand to benefit the most.

SmileDirectClub sells invisible teeth aligners for $1,850, a fraction of the cost of traditional braces from an orthodontist, Business Insider previously reported.

A representative of SmileDirectClub did not immediately return Business Insider's request for comment on Katzman and Fenkell's personal relationship, current involvement in the business, and personal fortunes.

Keep reading to learn more about Jordan Katzman and Alex Fenkell.


Jordan Katzman and Alex Fenkell both grew up in Detroit, Michigan.

Foto: SmileDirectClub co-founders Alex Fenkell and Jordan KatzmansourceCourtesy SmileDirectClub

The pair founded SmileDirectClub in Michigan, Fenkell told the Michigan Fashion Media Summit in March.

Fenkell moved from Detroit to Nashville, Tennessee with SmileDirectClub in 2016, according to Crain's Detroit Business. Katzman still lives in metro-Detroit.


The pair met at summer camp when they were 13.

Foto: Katzman and Fenkell not pictured.sourceFlickr / Camp Pinewood

The two became close friends, according to SmileDirectClub's website. Both wore traditional metal braces at the time.

Katzman and Fenkell came up with the idea for SmileDirectClub while later reminiscing about their childhood years and wondering if they could find a less embarrassing and cheaper way to straighten teeth, according to SmileDirectClub's website.


Katzman and Fenkell grew up to become serial entrepreneurs.

Foto: Men work in a garage for luxury cars in a building of the former Sanyo factory in the Shekou area of Shenzhen, Guangdong Province, China. Katzman and Fenkell's former business not pictured.sourceReuters/Thomas Peter

Before SmileDirectClub, Katzman and Fenkell launched a car detailing business and another that developed a software company that allowed online shoppers to build a single shopping list pulled from multiple websites, according to Inc.

"It took Jordan and I years to find the right idea and you have to be willing to fail a few times beforehand to succeed," Fenkell told the Michigan Fashion Media Summit, an event that SmileDirectClub sponsored. "It's important to not get hung up on just one idea, you need to be willing to move forward and pivot when something isn't working."


Katzman and Fenkell founded SmileDirectClub just five years ago, in 2014.

Foto: sourceAP Photo/Jae C. Hong

The pair secured funding from the investment firm Camelot Venture Group, which is run by Katzman's father, David Katzman, according to Forbes.

Their goal was to revolutionize the teeth-straightening industry as Crest Whitestrips revolutionized the teeth-whitening industry by allowing people to whiten their teeth at home, Fenkell told Inc.

They originally named the business SmileCareClub, according to Inc.

David Katzman told the cofounders to build a website for the new business to see if there was any interest from potential customers, according to the Nashville Business Journal. So many people visited the site that it crashed within days.


David Katzman, Jordan's father, became the new company's CEO.

Foto: David Katzman, CEO of SmileDirectClub stands with founders Jordan Katzman (R) and Alex Fenkell as the company debuts its IPO at the Nasdaq MarketSite in New York, U.S. September 12, 2019.sourceREUTERS/Lucas Jackson

David Katzman, 59, is also SmileDirectClub's largest shareholder. As of a Forbes article from September 3, he was expected to have an estimated net worth of $2 billion after the company's IPO.

Katzman had experience with direct-to-consumer businesses after investing in 1-800-CONTACTS and Quicken Loans through Camelot, according to SmileDirectClub's website. Katzman held positions at Home Depot, the Cleveland Cavaliers, and wall decal company Fathead before SmileDirectClub, according to the Nashville Business Journal.

Katzman's uncle, Steven Katzman, is SmileDirectClub's chief operating officer. Between Jordan, David, and Steven, the Katzman family will control 65% of votes within the company, CNBC reported.


Katzman and Fenkell found their own niches within the company.

Foto: SmileDirectClub co-founders Alex Fenkell and Jordan KatzmansourceCourtesy of SmileDirectClub

Katzman runs SmileDirectClub's IT department while Fenkell heads up marketing, Inc. reported.


Fenkell has repeatedly defended SmileDirectClub during the company's squabbles with competitors.

Foto: Alex Fenkell.sourceREUTERS/Lucas Jackson

SmileDirectClub had an ill-fated partnership with Invisalign maker Align Technology. It ended in a lawsuit that forced Invisalign to close all of its stores, according to Inc.

The company has also faced substantial opposition from dentists and orthodontists who say that straightening your teeth without an in-person consultation with a medical professional can do more harm than good, The Detroit Free Press reported.

SmileDirectClub said in a press release that the company is "a target of a well-funded lobbying and public relations effort by the American Association of Orthodontics, the largest orthodontist industry group, which is seeking to shut down pioneers of innovative, affordable teledentistry services."

"If industry lobbyists have their way, millions of Americans will be denied access to a healthy smile through teledentistry," Fenkell said in a 2017 statement. "It's important that we stand up for those who, without SmileDirectClub, would not have access to an affordable new smile."

"Whenever you disrupt something, there's going to be some friction. It just takes some time to muscle through the first year of the business, to show the results, and we believe we've done that," Fenkell told Inc.

SmileDirectClub has even filed lawsuits against its detractors, including the Georgia and Alabama dental boards, according to the Nashville Business Journal.


Fenkell doesn't spend time worrying about worst-case scenarios.

Foto: Dental assistant Jessica Buendia looks at a scanned image of patient's teeth in SmileDirectClub's SmileShop located inside a CVS store Wednesday, April 24, 2019, in Downey, Calif. CVS Health is venturing into dental care with plans to offer the relatively new teeth-straightening service. (AP Photo/Jae C. Hong)sourceAssociated Press

If SmileDirectClub loses its lawsuits against the state dental boards, the company could be forced to overhaul its business model to include closer oversight of patients by dentists, according to the Nashville Business Journal.

"We would have to assess if that became the case," Fenkell told the Nashville Business Journal. "We just believe so strongly in what we're doing ... I just can't see that."


Both 30 years old, the cofounders are now two of the youngest billionaires in the United States after the company's September 12 IPO.

Foto: David Katzman, CEO of SmileDirectClub stands with founders Jordan Katzman and Alex Fenkell as the company debuts its IPO at the Nasdaq MarketSite in New York, U.S. September 12, 2019.sourceREUTERS/Lucas Jackson

According to Business Insider's Lydia Ramsey and Emma Court, Katzman's stake in the company is valued at around $1.2 billion, while Fenkell's is worth up to $1 billion. Each owns close to a quarter of SmileDirectClub's Class B shares.

Other young American billionaires include Stripe cofounders Patrick and John Collison (30 and 29 respectively), Snapchat founder Evan Spiegel (29), and social media mogul Kylie Jenner (22), according to Forbes.

Read more: How Kylie Jenner became the world's youngest self-made billionaire, from starring in a reality TV show at age 9 to running a $900 million cosmetics empire at 21