Neustar (or domain auction platform - specific company name not clearly stated)

In 2012, Sean learned through news coverage that ICANN would allow anyone to apply for custom top-level domains (TLDs) beyond .com—think .app, .blog, .church. The barrier to entry was steep: $185,000 per application. Two thousand applicants applied, generating $360 million in fees. When multiple companies applied for the same domain, ICANN created an unprecedented problem: how do you fairly allocate a valuable asset when multiple deep-pocketed bidders want it?

Sean had a co-founder—Ulrich, a PhD in auction theory from Stanford who he'd met on a 40-hour train ride through India in 2006. Together, they realized they could solve this with an elegant mechanism: an ascending-clock second-price auction. This wasn't new theory—it's proven in academic literature—but it had never been deployed at this scale for assets worth tens of millions.

Development took eight brutal months. The product had to handle security, international bidding, banking integration, and millions in escrow across accounts in Hong Kong and elsewhere. They self-financed by not paying their $500,000 legal bill. The only real costs were Sean's time flying to conferences worldwide and his co-founder's intellectual labor.

But building the software wasn't the hard part.

Their first auction didn't include Google, Amazon, or the billionaire investors fighting over .app. It was smaller TLDs: .photography, .vote, .now, .red. Those auctions worked, but without the marquee names, the business looked like it might fail entirely.

Sean's approach to customer acquisition was relentless and unconventional. He and Ulrich attended ICANN conferences around the world—Johannesburg, Buenos Aires, Singapore—hunting for executives who could greenlight participation. When direct emails and calls failed, Sean would literally memorize faces from LinkedIn, then hunt for those people on the conference floor. In one legendary moment, Sean spotted a prospect he couldn't reach outside smoking in Buenos Aires. Not a smoker, Sean bought a pack of cigarettes, joined him outside, and casually mentioned the auction they were running. It worked.

Google was the hardest sell. A billionaire investor had written to the Department of Justice claiming the auction mechanism would artificially inflate prices. Google was spooked. Sean spent a year shuttling to Mountain View, meeting with dozens of people, whiteboarding the mechanism against alternative outcomes. He eventually convinced Google's chief economist, Hal Varian, that the second-price auction actually prevents overbidding—if you pay the second-highest bid, you have no incentive to bid higher than your true value.

Google tested them on a smaller auction first, then committed.

Once the first major TLDs started selling, prices exploded. .photography sold for several million dollars (not $15 million as the host guessed). In its first year, the .photography registry sold ~100,000 domains at ~$50 each, generating $5 million in registrar revenue—a multiple of the initial auction price. Suddenly, Sean's mechanism looked brilliant.

The business model: 4% commission on auction proceeds. With top auctions exceeding $100 million, a single deal could be wildly profitable. The challenge was that each auction required *all* contenders to participate. If Sean had 13 of 14 parties, there was no auction and no revenue. This made relationship-building existential. Get one person wrong, and months of work yielded nothing.

What didn't work: going in blind. For the first auction, Sean and his co-founder had no idea what these domains were worth. They took bets amongst themselves. The learning curve was steep, but once early TLDs proved successful, prices and interest skyrocketed.

The platform has facilitated hundreds of millions—potentially over a billion—in domain auctions. It's become the de facto mechanism for resolving TLD disputes, handling the most complex and high-stakes auctions in internet history. Sean's willingness to knock on doors, smoke cigarettes with prospects, and fly around the world for eight months before closing a single deal shows what enterprise sales sometimes demands.

Beyond this business, Sean has bought residential and multi-unit real estate in Pittsburgh and Chicago (buying a house at 22 for $47,000, now a cash cow). He ran a headphones e-commerce business as a teenager, traded options, made an angel investments, and even sold a podcast called "The Pitch" to Gimlet (acquired by Spotify). His career is a masterclass in identifying asymmetric opportunities and having the fearlessness to pursue them.