Introducer fee - how much?

Hello my fellow salespeople!

I am working for a boutique marketing company and selling their services which are pretty standardized and monthly fees are ranging between $1000 - $5000. However, now I've come across a lead that is much larger one (a new startup that has no marketing team yet in finance) in terms of budget and needs that the potential clients want. Their marketing budget is ranging between 6- and 7-figures and there is potential for us to do all the services for them.

So now the question is, how high introducer fee is paid usually from 6 and 7-figure deals in finance and marketing? I want to have some sort of understanding before we enter formal discussions. My company knows that I am working on this deal and they know it's coming from my personal network.

Thank you all!