Need an Expert Video Animation Agency that Can Help me

Does anyone know about any video animation agency that offers good quality free whiteboard animation for trial? I’m looking for a professional video animation agency that can provide quality in their service. I want to make some advertisements for my school project, and I want to add some good whiteboard animations on it to make it look more attractive. I want the task to be done by some professional animators. For this reason, I’m in a desperate need of an expert video animation agency that can help me with the completion of my project. The primary goal is to deliver the knowledge of the product and explain the complexity to the viewers with the help of animations. Since whiteboard animation videos are the best tool to teach the idea behind the product and the business complexities, I made up my mind to include this part in the advertisement. Kindly share your views if you are aware of any reputable video animation agency.