Most agencies get stuck at 30 percent margins on service retainers. Start using...

https://www.first-bookmarkings.win/stop-trading-your-time-for-low-margin-retainers-that-hit-a-30-percent-ceiling

Most agencies get stuck at 30 percent margins on service retainers. Start using your agency as a lab to build the internal tools you actually need. Once you sell that software, you can easily shift those margins to 70 percent or more.