Petplan founders
Camera icon Petplan Petplan co-CEOs Chris and Natasha Ashton, with their English Toy Spaniel, Monty

Before CommonBond went on to disrupt the student-loan market, the firm’s founder was dealing with his own loans at the Wharton School.

Petplan co-CEOs Chris and Natasha Ashton, with their English Toy Spaniel, Monty Slideshow icon Slideshow

The latest startups from the Wharton program that brought you Warby Parker

“I had to pay my way through B school 100 percent with student loans,” recalled David Klein, cofounder of the online student-loan lender, who attended Wharton in 2011-12. “When it was time to take out my loans, I realized that the rates were too high, the customer service was poor, and the process was confusing. I knew there had to be a better way.”

Founded in 2011, the firm has funded close to $1 billion in student loans and helped thousands of members with lower interest payments. The lender, which competes with San Francisco-based SoFi, recently launched an employer platform called CommonBond for Business, which enables employers to contribute to employees’ student loan payments every month.

“One of my biggest learnings from my [Penn] Wharton Entrepreneurship experience was to just ‘go with it,’ ” Klein said. “You won’t know if it works until you do.”

The New York-based start-up is one of the latest high-flying ventures to take flight from Wharton, long known for finance and accounting. The school’s Venture Initiation Program, established in 2001, now helps more than 50 student-founded companies annually across sectors from biotech to restaurants.

These included Warby Parker, the global eyewear fashion giant; BioBots,…