Despite prohibitions against it at the place I work people are promoting religion on a regular basis by simply using it in common conversation.
It has evidently gotten around about my viewpoints and at least two maintenance personnel have expressed their opinions regarding my stance.
Perhaps I should file some sort of complaint and see where it goes?
Freethinker's corner 
I went through the same situation.
Speak up. File a complaint.
The last thing any big company needs is a lawsuit. If the people in charge are smart, religious or not, they will stomp all over the violating employees.
If you feel you are being discriminated against because of your "lack of faith" say so and CC your lawyer.
Bets of luck!
JM