If you are licensing content on behalf of a client, then during the delivery process of the end product to your client, you may grant your client a sublicense to use that content as allowed by this License Agreement.
You must guarantee that you have full legal authority to bind your client to the terms of our License Agreement. If you do not have that authority, then your client may not use the content, unless they also obtain a license for that content directly from us. Your client must comply with our License Agreement, and you remain directly liable to Vecteezy for your client’s use of the content. If you use any content as part of an End Product or Design Project created for or delivered to a client, you agree to provide the name and contact information of your client to Vecteezy upon Vecteezy’s reasonable request for the sole purpose of monitoring proper use.
You can read about this in our License Agreement under Section 5, a. (Sub-licensing; Client Use) here.