Most agencies get stuck at 30% margins on retainers because service work...

https://qqpipi.com//index.php/How_Do_I_Know_If_an_Internal_Script_Should_Become_a_Real_Product%3F

Most agencies get stuck at 30% margins on retainers because service work doesn't scale. Treat your agency like a lab to turn your internal workflows into software. You’ll replace the delivery grind with 70%+ margins and a product that actually scales.