Service retainers usually cap your margins at 30 percent. Stop just selling...

https://technivorz.com/four-dots-how-a-novi-sad-agency-cracked-the-code-on-product-evolution/

Service retainers usually cap your margins at 30 percent. Stop just selling labor and treat your agency like a lab to build your own internal tools. That shift lets you build software products that hit 70 percent margins and beyond.