Where Is Sleeper Located? SF HQ, Plus a Second LLC

Where Is Sleeper Located?

Where is Sleeper located? The app is a San Francisco company through and through, run by an entity called Blitz Studios, Inc. — but the address that shows up in official filings is a mailbox suite, not a floor of desks, and the newer Sleeper Markets side of the business is registered as an entirely separate LLC with its own federal license. Both facts matter more than the city name alone.

Where is Sleeper located? Officially, San Francisco — but the interesting part of that answer isn’t the city, it’s that the filed address is a mailbox suite, and that the newest piece of the Sleeper app isn’t run by the same legal entity as the rest of it. Both are worth untangling before assuming one HQ address explains the whole operation.

The Filing Says 548 Market Street

The consumer Sleeper app is operated by Blitz Studios, Inc., the company’s name from its 2015 founding, before the product itself was rebranded to Sleeper. Its registered address is 548 Market Street, PMB 95988, San Francisco, CA 94104. That building is one of the most heavily used registered-agent addresses in the country — a private mailbox facility that lets a company list a single stable filing address for incorporation and tax paperwork without tying it to whichever building its staff actually works out of. Thousands of unrelated startups use the same street address for exactly that reason, so on its own it says nothing bad about Sleeper. It does mean a PMB suite number, not a floor number, is the honest answer if someone is expecting a lobby to walk into.

Founded and funded in San Francisco. Blitz Studios, Inc. was started in 2015 by Nan Wang, Weixi Yen, and Ken Wang. The company has raised roughly $67 million across five rounds, including a $40 million Series C led by Andreessen Horowitz — institutional Bay Area venture money, not an offshore holding structure.

Sleeper Markets Is a Different Entity, Full Stop

Anyone researching where Sleeper is located because they’re actually asking “who regulates Sleeper Markets” needs a different answer than the one above. Sleeper Markets LLC is a separate legal entity from Blitz Studios, and it is the one the National Futures Association approved as a futures commission merchant and swap firm on January 9, 2026, registered under NFA ID 0570580. That approval came after Sleeper sued the CFTC earlier in 2025 over a stalled application, and it is what let the in-app product called Team Picks launch in February 2026. Sleeper Markets LLC doesn’t hold its own trading venue — it routes sports event-contract orders onto Kalshi, a CFTC-designated exchange, the same way a broker routes an order to a stock exchange rather than matching it internally.

App / DFS entity: Blitz Studios, Inc. — San Francisco, CA

Filed address: 548 Market Street, PMB 95988, San Francisco, CA 94104

Prediction-market entity: Sleeper Markets LLC — NFA ID 0570580, approved as FCM/swap firm January 9, 2026

Founders: Nan Wang, Weixi Yen, Ken Wang (2015)

Why the Split Matters More Than the City

A single headquarters city can make a company sound like one thing when it’s legally two. Blitz Studios, Inc. answers for Sleeper Picks, PicksVS, and Daily Drafts under the same kind of state-by-state fantasy-sports framework PrizePicks and Underdog operate under. Sleeper Markets LLC answers to federal futures regulators for a completely different product with its own compliance obligations. If something goes wrong with a DFS payout, that’s a Blitz Studios question. If something goes wrong with a Team Picks trade, that runs through Sleeper Markets LLC and, downstream, Kalshi’s own rules — not the same complaint line, even though both live behind the same login screen.

Where is Sleeper located? — Frequently Asked Questions

Where is Sleeper located?

Sleeper is a San Francisco company. Its operating entity, Blitz Studios, Inc., lists its registered address as 548 Market Street, PMB 95988, San Francisco, CA 94104 — a mailbox suite inside a well-known multi-tenant building rather than a standalone office tower.

What company owns Sleeper?

Blitz Studios, Inc. is the entity behind the consumer Sleeper app — the name comes from the company’s original 2015 identity before it rebranded its product to Sleeper. Founders Nan Wang, Weixi Yen, and Ken Wang still lead the company, which has raised roughly $67 million across five rounds, most recently a $40 million Series C led by Andreessen Horowitz.

Is Sleeper a US company?

Yes. Blitz Studios, Inc. was founded and is headquartered in San Francisco, California, with no offshore parent in the DFS side of the business. That is a different structure from the Curaçao- or Comoros-licensed sportsbooks this site also reviews.

Is Sleeper’s address just a mailbox?

The filed registered address is a PMB (private mailbox) suite at 548 Market Street, a building used as a registered-agent address by large numbers of unrelated startups because it lets a company keep one stable filing address for state paperwork even as its real workspace changes. It is not evidence of a shell operation on its own — plenty of legitimate, well-funded companies file this way — but it does mean the address alone won’t tell you where Sleeper’s employees actually sit.

Is Sleeper Markets the same company as Sleeper?

No, and this is the detail most "where is Sleeper located" searches miss. Sleeper Markets LLC is a separate entity that the NFA approved as a futures commission merchant and swap firm on January 9, 2026 (NFA ID 0570580), specifically to route sports event-contract trades onto Kalshi’s CFTC-designated exchange. Blitz Studios runs the fantasy and Picks side; Sleeper Markets LLC is the regulated entity behind Team Picks.