I have to say, I work at Red Hat and I have never been so supported on anything in my life. They helped with questions on health care, changed my name in all our systems and put me in touch with other trans people within the company. I still look very much like a guy, but everyone calls me Sarah and my boss checks in with me to make sure I am happy.
I know how rare it is, but wanted to mention it, they are an amazing company.