Sleeper

San Mateo, United States

The company provides fantasy sports and gaming services, including fantasy football, basketball, and other sports.

Sleeper, based in San Mateo, United States, has 7 investors on file, among them Alumni Ventures, Expa and Rabil Ventures.

sleeper.app Now at sleeper.com

Investors

7 investors on file

Investor	Evidence	Type
Alumni Ventures	Portfolio page	Venture capital
Expa	Portfolio page	Investor
Rabil Ventures	Portfolio page	Venture capital
Rainfall Ventures	Portfolio page	Venture capital
Super Capital Group	Portfolio page	Venture capital
Titanium Ventures	Portfolio page	Venture capital
Utopian Ventures	Portfolio page	Venture capital

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

At a glance

Investors on file: 7
Founded: 2015
Headquarters: San Mateo, United States
Hiring: Careers page
Site: Not checked yet
Last checked: 12 Nov 2026

Also from Wikidata.

Backed by the same investors

Companies sharing two or more investors with Sleeper.

Allset2 shared

AlpacaJapan2 shared

Alto2 shared

Clyde2 shared

Eco2 shared

Nitra2 shared

Get this company as JSON

GET /v1/companies/sleeper.app
GET /v1/companies/sleeper.app/investors
GET /v1/companies/sleeper.app/news

API docs · Get a free key · Your API key

Raising a round?

See which investors fit your startup, ranked by what they actually back.

Check investor fit

Free account · no card

Get Sleeper and its investors as data

Look up any company's investors, or any investor's full portfolio, through one API key or MCP. A free account also opens Ask AI searches and alerts when Alumni Ventures adds a company.

Work email, sign-in link by email. Already have an account? Log in

Your API key Read the docs

Ask AI5 plain-English investor searches a day
Full listsEvery portfolio row and two-firm overlap
API and MCP100 REST or MCP calls a month, one key
AlertsFollow 5 investors for portfolio and fund changes

VCinfo API

$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/companies/sleeper.app/investors

# also
GET /v1/companies/sleeper.app
GET /v1/companies/sleeper.app/news

The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing