Have all employees who appear in the video sign release forms. A successful video project can turn sour if a former employee who appears in the video decides to sue. Ask all employees to sign forms relinquishing their rights to distribution and usage. Your production company should have a standard from that you can use or adapt. Schedule the video production at a time that is convenient for your company.
Timing is everything.
If your company is changing its logo or corporate colors, or is remodeling the building, any aesthetics that may appear in the video, postpone production until after the changes are made. Nothing makes your video more obsolete that yesterday's image. Be accessible to the production company during the production process. It is important that you, or a designated person, be on-site during shoots. As a first-timer to video production, you may not understand the editing process.