Alex Miller (@alexlmiller) — Twitter Score 97 out of 1000

Alex Miller is a startup operator and CEO who leads Hiro Systems PBC, a company that builds developer tools for the Bitcoin and Stacks ecosystem. Alex Miller's Twitter Score is 97 out of 1000 (a Good rating) as of September 2026, ranking #7,518 (top 5%) among 486,621 tracked accounts.

Alex Miller works at Hiro Systems PBC as CEO, a role focused on growing the Stacks ecosystem, and also works at Stacks Labs as Interim CEO. In addition, he works at Chaotic Capital as Fund COO and Venture Partner. In 2025, he testified before the U.S. House of Representatives in his capacity as CEO of Hiro Systems PBC, describing the company's work building tools for developers on Bitcoin and Stacks.

Alex Miller has been part of a notable regulatory development: a Form 1-U filing by Hiro Systems PBC dated July 2024 disclosed that the SEC staff had concluded its investigation into the Stacks Blockchain and stated it did not intend to recommend an enforcement action against Hiro. Alex Miller has published 15,171 posts on the platform and has 11,884 followers as of September 2026. He has been mentioned by 72 accounts, with 808 total mentions.

Who follows Alex Miller on X?

The accounts that follow Alex Miller include 376 founders, 93 angel investors, 114 influencers and 2 VCs. Among his notable followers are Toly, Marc Andreessen, Garry Tan, Ryan Selkis, Loomdart and Eric Wall.