It's all about what you negotiate. First make sure there's an understanding that the commission is a percentage of profit, not the dollar amount of the sale. Take into consideration the cost figures, including what the ongoing maintenance / residual fees, the wages of anyone else who would be handling the clients, etc.

Are they going to be on call, the face the client deals with continuously? IMO, between somewhere of 25 - 50% profit for what they bring in.

If it's more of a "finder's fee", a one-time sales pitch then turning the client over to the company, 10 - 20%.

A quote my father used to always tell me, "you don't get what you deserve, you get what you negotiate".

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