Noah Auerhahn and the Price of Saying No

A startup short of money has a peculiar relationship with a check. It can look like another month of salaries, a postponed crisis, or permission to keep going. In early 2011, Extrabux had a check for $300,000. Noah Auerhahn and his co-founder, Jeff Nobbs, decided their company would be better off without it.

Nobbs later recalled that they had wanted the investment. Getting to know the prospective investor changed their minds. He described the fit as wrong and turning down the money as one of their hardest decisions. The business arithmetic supplies enough tension: a young company needed cash, had cash within reach, and walked away.

For Auerhahn, later a co-founder and early CEO of Robin Healthcare, this earlier chapter deserves a close look. Extrabux began at the University of Southern California, survived the awkward years of a student enterprise, found customers overseas, and entered Ebates through an acquisition announced in 2014. Its story includes a prize check, small investment checks, and one unusually expensive refusal.

Two doors down, a business begins

Auerhahn and Nobbs were students at USC when they started Extrabux in 2006. In Nobbs’s recollection, Noah lived two doors down in the dorms. Their initial search was broad: they wanted to start a business and were considering opportunities online and off. Looking into growing industries brought them to e-commerce, then to affiliate marketing.

The mechanism was understandable even without a business-school vocabulary. Retailers paid a commission when a website sent them a customer who bought something. Extrabux proposed sharing that money with the shopper. A person could enter a store through its links, buy normally, and receive some of the commission afterward. The founders had found a place for themselves between the shop window and the checkout.

By February 2007, their shopping portal linked to nearly 500 websites. Membership was free. Members could receive their accumulated rewards by check or PayPal, or direct them to charity. Extrabux retained a portion of the commission. The proposition asked shoppers to change their route to a purchase they already intended to make. An extra stop online could leave them with extra money.

A $25,000 vote of confidence

In May 2008, the company won first prize in USC’s business-plan competition. Thirty-eight other entrants had competed; Extrabux was the only undergraduate team to reach the finals. The prize was $25,000. For a business still close enough to campus to be described as a class project, winning meant that strangers had examined the idea and decided it deserved backing.

That autumn, the founders were preparing a comparison-shopping engine for the holiday season. Auerhahn spoke about the work in terms that will be familiar to anyone who has ever promised a launch date: “We’re working overtime to get the new site ready for holiday shopping.” The glamour of ownership had acquired a deadline.

He also called building the business exhausting and exciting. Those two descriptions belong together. Students were being asked to assess the idea as a business plan while shoppers would soon assess it as a working website. A prize committee can reward a convincing proposal. A customer still needs the page to load, the comparison to make sense, and the promised reward to arrive.

Forty hours in Singapore

Auerhahn had another assignment that October. Alongside USC students Suzy Ryoo, Michael Cochran, and Shaun Sakhrani, he competed at Nanyang Technological University in Singapore. Their team won the Asian Business Case Competition, held on October 16, 2008. Ten schools from several continents took part.

The team had 40 hours to research a strategic problem for Aitken Spence Hotel Holdings, a Sri Lankan hotel and resort company. Their recommendations had to address growth with an emphasis on sustainable tourism. Six executives judged the work, representing organizations including KPMG, Deloitte, Microsoft, and the Singapore Exchange.

It is a useful detail in a career often reduced to company names. During the same period that Auerhahn was helping build a shopping website, he was working with a different team on a different business in a different country. Forty hours leaves little room for an elegant theory that cannot survive questions. The assignment required research, choices, and a recommendation delivered on time. His education included both a venture he could keep revising and a competition whose clock would stop.

The checkout had too many moving parts

Extrabux’s expanded proposition tackled the difference between an advertised price and the amount a shopper would ultimately pay. Coupons, shipping charges, taxes, and cash-back offers could all change the answer. Collecting them in one comparison was a practical way to spare customers some arithmetic and several browser tabs.

By 2009, the founders were asking retailers and members about their frustrations through surveys and individual conversations. Revenue from the original site helped fund a four-person development team for the comparison engine. They were building the next version partly with money earned by the first, while learning from people already using it.

The company also brought in an interim CEO, Robert Nascenzi, whose background included leading marketing-information business Claritas. The picture was becoming more complicated than two students with a website: developers, experienced management, investors, and merchants all had a role. Auerhahn and Nobbs had to turn a useful offer into an organization capable of delivering it repeatedly.

The check they could afford to refuse only with difficulty

Money arrived in small increments. Nobbs described the early fundraising as something close to a part-time job, with substantial work going into individual $10,000 investments. Family, friends, and angels supplied capital. In his 2013 account, the company had stopped raising money around the middle of 2011 and had begun funding growth through its own revenue.

Before that change came the rejected $300,000 check. Nobbs said the founders were barely paying themselves during the company’s five-employee period. Employees received cash and equity. Against that background, declining an investor had consequences beyond an abstract preference for a tidy shareholder list.

The episode gives Auerhahn’s early career a more human scale than a sequence of funding announcements. The founders were making decisions while their own pay was meager. A large check could relieve an immediate pressure and introduce a lasting relationship. They judged that relationship unsuitable. Whatever temptation the amount presented, they chose to continue without it. A fundraising total would record only the money accepted; this decision would disappear from the column.

“We were making minimum wage.”

Jeff Nobbs, recalling his and Auerhahn’s early pay at Extrabux

The customers arrived before the office

China became an opportunity because people there were already finding Extrabux. Investor Rick Parada later recalled that the company’s cash-back rates helped it become known among shoppers buying from overseas. Auerhahn and Nobbs persuaded him to relocate and open the Shanghai office as general manager. An audience was becoming an operation.

By early 2013, Extrabux had offered versions in English, Chinese, Korean, and Russian. China was its first market with a dedicated overseas office. Customers crossing borders faced extra shipping costs and duties, which gave rebates an additional purpose. Saving on the purchase could help offset the expense of getting it home.

Local service involved more than translating buttons. Customers wanted Chinese-language help and live chat at hours a team in America could not easily cover. Payment options and forwarding packages also mattered. The business that began by simplifying the route to a store now had to understand the route from that store to another country. Each additional step offered another place for a shopper to get stuck.

Room for someone else to do the work

The partnership had a division of labor. In 2013, Nobbs described his own focus as design, features, marketing, and merchant relationships. Auerhahn concentrated more on strategic alliances, business development, and the underlying systems. The latter tasks are less visible to a shopper, but they help determine whether an attractive offer can function as a business.

Colleagues’ accounts add detail to that operating role. Patrick Salami recalled having broad freedom to explore technical approaches, with Auerhahn remaining receptive as development progressed. Ryan Glasgow described a manager who delegated responsibilities, maintained cohesion, and noticed misunderstandings between team members. These are their assessments of working with him, and they describe specific habits rather than an entrepreneurial costume.

By April 2013, Nobbs reported a 23-person company split between San Diego and Shanghai. He also reported approximately $5 million in revenue for 2012. The international operation had become substantial enough to require clear responsibilities across offices. Somebody had to keep the machinery working while somebody else proposed what it should do next.

An acquisition, then another beginning

In March 2014, Ebates announced its acquisition of Extrabux alongside the launch of a Chinese-language site. Auerhahn would oversee product innovation and development for that site, while Nobbs would lead China operations from Shanghai. The business had traveled from a USC dormitory connection to a role in another company’s international expansion.

Auerhahn went on to co-found Robin Healthcare with Emilio Galan in 2017, serving as its early CEO. His subsequent company, Uncommon Therapeutics, joined Y Combinator’s Winter 2025 batch, with Auerhahn listed as co-founder and CEO. The names changed; founding companies remained his occupation.

Return, though, to the check Extrabux declined. It is a small piece of the record with a large sum written on it. The student prize supplied encouragement. Customer purchases supplied revenue. Investors supplied capital. At one difficult point, the founders decided that a particular source of capital would cost too much in other ways. Their company’s history includes the money they raised, and the judgment required to leave some behind.