X
formerly TwitterAcquiredBlaze your glory!
San Francisco, United States · Founded 2006 · $2.8B raised
- Headquarters
- San Francisco, California
- Employees
- 5001–10000
- Founded
- 2006
- Business Model
- B2C
- Website
- x.com
- Total Funding
- $2.8B
- Last Round
- $1.0B Growth EquityMar 2025
- Rounds
- 9
- Acquired by
- xAIOct 2022
About
X (formerly Twitter) is a real-time public conversation platform serving over 400 million monthly visitors and 255 million active users. The platform enables users to post short-form content, engage with trending topics, and receive personalized feeds powered by an AI recommendation algorithm. X also offers advertising products, a premium subscription tier, and an API for developers.
Summary
X is a Social Media company based in San Francisco, United States, founded in 2006. It has raised $2.8B in total across 9 rounds, most recently a $1.0B Growth Equity round in Mar 2025. Investors include Spark Capital, Elon Musk and Andreessen Horowitz.
Tech & App Stack
22 technologies & apps tracked
Every product and vendor across these categories, with where each signal came from.
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Funding History
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Mar 2025
Sign up to see all 11 rounds
Series A through Corporate Round — per-round amounts, valuations, and who invested in each round.
Investors
Spark Capital
3 rounds
Elon Musk
2 rounds
Andreessen Horowitz
2 rounds
Sequoia Capital
2 rounds
IVP
2 rounds
Benchmark
2 rounds
DST Global
1 round
Kleiner Perkins
1 round
Insight Partners
1 round
T. Rowe Price
1 round
Union Square Ventures
3 rounds
Darsana Capital
1 round
8VC
1 round
Binance
1 round
Qatar Investment Authority
1 round
Morgan Stanley
1 round
Bezos Expeditions
1 round
CRV (Charles River)
1 round
Marc Andreessen
1 round
Ron Conway
1 round
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