Michael Grinich (@grinich) — Twitter Score 74 out of 1000

Michael Grinich is a software entrepreneur who founded WorkOS, an API infrastructure platform serving AI companies including OpenAI, Anthropic, and xAI. Michael Grinich's Twitter Score is 74 out of 1000 (a Good rating) as of October 2026, ranking #11,143 (top 5%) among 498,348 tracked accounts.

Michael Grinich founded WorkOS in 2019 after departing Nylas, which he had co-founded. He also founded Nihilus and previously worked at Dropbox. WorkOS has raised significant venture funding across multiple rounds, including a Series A of $15M, a Series B of $80M, and a Series C of $100M that valued the company at $2 billion. In 2022, WorkOS acquired Modulz, expanding its product capabilities.

Michael Grinich's account has accumulated 15,354 followers as of October 2026 and 12,301 posts. The account has been mentioned by 78 accounts, with 158 total mentions.

Who follows Michael Grinich on X?

The accounts that follow Michael Grinich include 298 founders, 108 angel investors, 33 influencers and 8 VCs. Among them are Balaji, Marc Andreessen, David Sacks, Garry Tan, Alexis Ohanian and John Wang.