The company I work for was like that for the first couple years, and in Florida it's perfectly legal to fire and refuse to hire gays.
The upper and middle management was slamming gays, saying they wouldn't hire gays and would fire anyone if they came out. Then at an employee dinner one day I'd had enough. They were fucking around and talking shit about fags. I was defending the fags, and they were like "what, are you gay?" I said "yeah fucker, you got a problem with? In fact, wanna fuck every goddamn one of you up your fucking assholes."
They were like
Then I was like "just in case you're pondering that possibility, don't. You're all too fucking ugly for me or any other self-respecting gay man."
Then they were like "you mother fucker..."
Now the owner and everyone loves me, and knows that I won't take shit. They also take up for me when some newb comes in and talks shit about gay people...and accuse him of secretly wanting to fuck me and the other gay guy at work. Not just behind his back, either. It's a very in-your-face crowd.
In other words, you have two choices:
1. Stand up for yourself and make it all or nothing...you either lose your job, or impress everyone and pave the way for the company's acceptance of gays.
2. Stay closeted and live in fear.
Keep in mind I'm not pressuring you to come out, because I don't know your situation. I am saying, however, that it would benefit you to start thinking about a coming out plan that works for you...then implement it when you're ready.
PS. Now we have almost as many gays (including lesbians) working there as straight/questioning/probablyDL people, and a very open atmosphere for any sexuality...wouldn't even be surprised to see a tran there someday. And there's a some pretty good eye candy there, too.