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

Having spent nearly a decade in recruitment, I’m now expanding my network and discovering a significant number of venture capitalists interested in collaborating with new companies and projects.

As this is a new area for me, I’m seeking advice on whether I should charge a finder’s fee or referral fee to the client, the VC, or both. What is the industry standard in these situations?

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