Only if you have a written contract stating that you will have to pay for the excess and if you haven't signed? You don't have to pa because you were driving for work purposes (unless it was personal). I've gotten away twice on this technicality :)
I don't believe you can legally do that. Insurance pays you according to their own calculations, so it is not exactly the company that pays you. You will have to talk to an attorney about this for professional advice.