Bettor ConciergeTrust Index

Company file

Sleeper

48

US state fantasy / DFS

San Francisco, United States · 200k visits / day

Legal Blitz Studios, Inc. (d/b/a Sleeper)

CEO Nan Wang

Founders Nan Wang, Ken Wang, Weixi Yen, Henry Leung

Founded 2015

Parent Blitz Studios, Inc.

Private. Blitz Studios, Inc. trading as Sleeper. Founders Nan Wang (CEO), Ken Wang, Weixi Yen, Henry Leung. Series C (Andreessen Horowitz led, 2021) is on the public record.

Founded 2015 as a chat-first fantasy app. Real-money player picks layered later; Team Picks market reported January 2026. DFS/fantasy, not a sportsbook in every state.

Licences US state fantasy / DFS authorisations

Register US — Blitz Studios, Inc. (San Francisco)

How you pay Visa, Mastercard, Bank transfer

Currencies USD

Languages English

Products Daily fantasy · Prediction market

Odds formats Fractional · Decimal · US / American · Implied probability

Related companies Blitz Studios, Inc. (Parent)

Address San Francisco, United States

Office visit Not on file

Public officers / staff

  • Nan Wang · Co-founder / CEO
  • Ken Wang · Co-founder
  • Weixi Yen · Co-founder
  • Henry Leung · Co-founder

Company communication

Live chat on the official site — open

Phone +1 415 857 3225

Help / contact page

Trust matrix — categories, not the published weight

  • MetVerified owners — Named private founders on the public record.
  • MetNamed officers / staff — Nan Wang (Co-founder / CEO) · Ken Wang (Co-founder) · Weixi Yen (Co-founder) · Henry Leung (Co-founder)
  • MetAddress on a register — Blitz Studios, Inc. — 548 Market St, San Francisco, CA 94104
  • MetPhone number on file — +1 415 857 3225 (D&B listing for Blitz Studios, Inc.)
  • MissingEmail address on file — No published corporate email — in-app support.
  • PartialLongevity — Operating since 2015 (11 years) as a fantasy app; real-money picks later.
  • PartialRelated businesses — Blitz Studios, Inc. (Parent)
  • PartialLicence stringency — State fantasy / DFS authorisations, not a sportsbook and not a CFTC DCM. Extra countries add weight; they do not wash out a weak home licence.
  • MissingOffice visit — No Bettor Concierge visit on file
  • DFS / fantasy authorisations, not a full sportsbook licence in every state
  • Named founders and a long consumer app history — still not a UKGC or CFTC DCM file
US

Official website sleeper.com