To me a calm company would foremost:

Balance growth with ethics, preferring to be ethical as possible.

Be kind to staff. Always help them find success rather than bully them or tell them off for doing the wrong thing. But needs to be balanced with what the company needs so there would need to be two ways.

Is flexible with staff where reasonable.

Most of all avoid getting angry at people. Not by suppressing anger but by having a worldview that you can trust your staff and they are doing their best your job is to coach them.