Whether points are earned depends on the billing arrangement. The applicable section of the Terms and Conditions of the Marriott Rewards program (Earn Points #7 ):
7. Point or elite night credit accrual is limited to individual travel and the room must be paid for individually by the Member or direct billed to the party responsible for paying the bill. If the room is master-billed, the charges are not eligible for Points or elite night credits.
If the Member attends a convention or group meeting and individually pays the hotel directly for the room, he/she will be eligible to receive Points and elite night credits for the stay. However, contract rooms, rooms reserved by corporations on an ongoing basis and master-billed rooms are not eligible to earn points or elite night credit. Military rates at certain overseas locations are subject to local restrictions and may be ineligible for points or elite night credit.
Source:
http://www.marriott.com/rewards/terms/earning.mi
If your stay is just one reservation set up by your employer, you'll likely earn points. If your employer uses this hotel on a regular basis, they may have a master billing account. In that situation, chances are good that you will not receive points.
My recommendation would be to contact the appropriate department (HR) and ask them. If you are a new employee or new traveling for business with this company, you could wrap your question into a more general one regarding travel policies. Doing that makes you appear to be proactively trying to adhere to whatever policies are in place.