I’m interested in launching an instance of pontoon for my company’s projects, but I would like to be able to use my own company’s account authentication to log in - is this something that is already supported?
That’s currently not supported. There has been talk to switch from Firefox Accounts to Auth0, but no concrete roadmap item for that.
Not sure if that’d help your use-case. Mozilla successfully integrated our own ldap-based auth into that flow, but I don’t know the details of that nor the details of your auth system.
I also noticed that there is a way to login using the django admin login: http://mozilla-pontoon.readthedocs.io/en/latest/dev/install.html?highlight=default#extra-settings
Which may be an acceptable interim.