Where is Underdog located? Search that and most people expect a single city. For the DFS product most readers mean, that answer is boring in the best way: Brooklyn, New York, a real leased address with a real street number, not a registered-agent mailbox in a tax haven. Since mid-2026, though, the company also runs a federally licensed exchange that files its own paperwork under a different name, so “Underdog” now points at two overlapping but distinct legal entities.

The Brooklyn Address Behind Pick’em

Underdog Sports, LLC is headquartered at 150 Waterbury St, Brooklyn, NY 11206 — the address on the company’s Better Business Bureau profile and on state trade-name and foreign-LLC filings from Colorado to Massachusetts to Washington. It isn’t the entity’s birthplace, though: the LLC was originally organized in Colorado on May 14, 2020, and only later registered to do business in New York and elsewhere as it expanded. Vcorp Agent Services, Inc. shows up as the registered agent across most of those state filings, which is standard for a company operating in more states than it has offices in.

Formed in Colorado, based in Brooklyn. Underdog Sports, LLC organized as a Colorado domestic LLC in May 2020, then foreign-registered into New York, Massachusetts, Washington, and other states as its pick-em DFS product spread. The Brooklyn address is where the company actually operates, not where the paperwork originated.

A Second Entity Since Predict Launched

Underdog’s new prediction-market product complicates a single “where is Underdog” answer. In March 2026 the company acquired Aristotle Exchange DCM, Inc. and Aristotle Exchange DCO, Inc. — an existing Designated Contract Market and Derivatives Clearing Organization already registered with the Commodity Futures Trading Commission, rather than filing for that federal status from zero. Underdog Predict launched on top of that acquired infrastructure in July 2026, operating out of New York under the parent holding company, Underdog Sports Holdings, Inc. It’s the same city as the DFS operation, but a different legal filing with its own CFTC oversight.

Why the Two Entities Matter

  • Different regulators, different recourse: a dispute over a Pick’em entry runs through state DFS law; a dispute over a Predict contract runs through the CFTC via the Aristotle Exchange registrations. Knowing which entity you funded matters if something goes wrong.
  • Not an offshore structure: both entities trace to named, publicly filed US companies at a real Brooklyn address, the opposite of the Curaçao-to-Comoros licensing trail this site documents for offshore sportsbooks like Bovada.
  • The old sportsbook is gone: whatever entity ran Underdog Sportsbook before its December 2025 nationwide shutdown no longer has an active product to locate.

Is the Brooklyn Address Enough to Trust?

A real address is a floor, not a guarantee. Underdog also has a public regulatory record worth weighing alongside it — a $17.5 million settlement with the New York State Gaming Commission in March 2025 over contests regulators said exceeded an old permit. The location is verifiable and domestic either way; what a reader still has to check separately is whether the specific product they want — Classic Pick’em, Pick’em Champions, or Predict — is actually licensed in their own state.