Most SEO agencies are trapped at 30 percent margins because retainers don't...

https://mega-wiki.win/index.php/How_to_Keep_a_Lean_Development_Cycle_Inside_an_Agency

Most SEO agencies are trapped at 30 percent margins because retainers don't scale. If you turn your internal delivery scripts into small software tools, you can push margins past 70 percent. Start treating your agency work like a product lab.