Service retainers rarely let you clear 30 percent margins. The real money is in...
https://dibz.me/blog/why-a-handful-of-european-seo-agencies-stopped-being-agencies-and-1138
Service retainers rarely let you clear 30 percent margins. The real money is in turning your internal SEO scripts into standalone tools. When you treat your agency like a product lab, you push those software margins past 70 percent.