A few companies that come to my mind now that still work this way are: doist, dnsimple, Cliniko, Calibre, HeadshotPro.
Any others?
Many business founders are willing to spend entire days on meetings, even though everything can be discussed asynchronously via text, and even faster.
I know that most developers dislike meetings and conference calls, and as a team lead, I consider it my duty to allow them to work without meetings.
When I launch my startups, I always organize the work of the entire team at the very beginning so that it can function without a single conference call. As a founder, I have never needed to call anyone on the team to resolve any issues.
I love it.
Maybe someone who is working for them can confirm or add more details about it.