Which startup was founded by Ivan Zhao?

Ivan Zhao co-founded Notion, the workspace app for notes, wikis, databases, and project management.

Notion Labs was created in San Francisco in 2013. Zhao is widely identified as the company’s co-founder and has been its central product visionary, but he did not build it alone: the founding group also included Akshay Kothari, Chris Prucha, Jessica Lam, Simon Last, and Toby Schachman. That broader founding history is why descriptions of Notion sometimes vary in how many people they name.

The first version of Notion was released in 2016, followed by Notion 2.0 in 2018. Its appeal came from combining flexible documents, databases, task boards, and collaborative pages in one system. Coda is a close competitor with a document-and-database approach, while Confluence emphasizes team knowledge management and Evernote began primarily as a note-taking service. The key distinction for this question is that Zhao is associated with founding Notion Labs, not those neighbouring productivity products.