When it comes to the length of corporate videos, there is no standard to measure as it depends on a variety of factors, including the content, target audience, and distribution platform. However, corporate videos should be concise and to the point with an average length of between 1 to 3 minutes.

The reason for this is viewers tend to have short attention spans, and may quickly lose interest in a video that is too long or doesn't get to the point quickly. A well-crafted corporate video that conveys its message effectively in a shorter amount of time can be more engaging and effective in communicating the desired message to the target audience.

That said, longer-form corporate videos that aim to educate or inform the audience on a specific topic may be longer in length. In addition, corporate videos that are intended for a specific audience or purpose, such as training videos or product demonstrations maybe longer or shorter depending on the nature of the content.

Ultimately, the length of a corporate video should be determined by the specific needs and requirements of the project. It can be best determined by consulting with a freelance corporate video professional or corporate video services provider. They can provide guidance on the most effective length for a video based on the specific goals and target audience of the project.