@asmallteapot

The official Bluesky website (bsky.social/about/faq) says that Dorsey is on the board:

"What is the corporate structure of Bluesky?

Bluesky, the company, is a Public Benefit Corporation. It is owned by Jay Graber and the Bluesky team. Jack Dorsey and Jeremie Miller serve on the board, along with Jay."