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

https://city-wiki.win/index.php/How_Agencies_Actually_Make_70%25_Gross_Margins_with_Software

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.