GitLab became the first all-remote company to go public when it listed on Nasdaq in 2021.
GitLab began as an open-source software project for managing Git repositories and later developed into a platform covering source control, continuous integration, security and software delivery. Its distributed workforce became a central part of the company’s operating model.
The company’s public listing made remote-first startup culture more visible to investors and other employers. GitLab documented policies, communication practices and management principles for employees working across countries and time zones.
Automattic and other technology companies also operate with distributed teams, so they are sometimes named in discussions of remote work. GitLab’s distinction in this question is its description as the first all-remote company to complete a public listing.