David Greenstein is a co-founder of Vault.fm, a chat platform connecting artists and fans through real-time conversations, texts, and group chats around music and shows. David Greenstein's Twitter Score is 134 out of 1000 (an Excellent rating) as of August 2026, ranking #4,521 (top 1%) among 483,944 tracked accounts.
David Greenstein previously co-founded Sound.xyz, a web3 music platform that raised a $5M seed round led by Andreessen Horowitz and a $20M Series A led by a16z Crypto, with participation from Snoop Dogg, Ryan Tedder, and others. David Greenstein is also affiliated with Y Combinator.
David Greenstein's portfolio includes Spinamp. David Greenstein's account has accumulated 10,925 followers as of August 2026 and 5,406 posts. David Greenstein has been mentioned by 59 accounts, with 115 total mentions.
Who follows David Greenstein on X?
The accounts that follow David Greenstein include 437 founders, 147 angel investors, 107 influencers and 7 VCs. Among them are Chris Dixon, jesse.base.eth, Laura Shin, Stani, Kyle Samani and Fred Ehrsam.