Retainers usually trap your agency at 30 percent margins because you’re trading...
https://dibz.me/blog/why-a-handful-of-european-seo-agencies-stopped-being-agencies-and-1138
Retainers usually trap your agency at 30 percent margins because you’re trading hours for money. When you productize those workflows into your own internal software, you can push margins past 70 percent. Start treating your agency like a lab.