#XSuperApp The Boring Company

Aims to solve traffic congestion problems by building high-speed tunnels under cities.

5. X (formerly Twitter)

Acquired the "Twitter" platform in October 2022, and renamed it to "X" in 2023.

6. PayPal (formerly X.com)

Was one of the founders of the company X.com, which later merged to become PayPal, which was later sold to eBay.