What is the typical referral fee for connecting my clients with venture capitalists?

Having spent nearly ten years in recruitment, I’m in the process of expanding my network and have connected with a significant number of venture capitalists seeking new companies and projects to collaborate on.

As I navigate this new territory, I would like to know if I should charge a “finder’s fee” or “referral fee” to the client, the VC, or perhaps both? What is the industry standard for these fees?

I would greatly appreciate any insights you can share. Thank you in advance!