The invite-only iPhone app, which celebrated its first birthday last month, allows users to find and listen to conversations between groups of people. It was quickly embraced by Silicon Valley types and it was backed by well-known venture capital firm Andreessen Horowitz (whose co-founder speaks on the app from time-to-time) in a January funding round that reportedly valued it at $1 billion.
On Sunday, Clubhouse confirmed Andreessen has led a new series C funding round after The Information broke the news on Friday. The latest round of investment, which includes new backers DST Global and Tiger Global Management, reportedly values the company at $4 billion. But investors appear to be more bullish than many of the app's users.