OK, but that still leaves all those non Delivery Partners. And what benefit does partnership really bring? I've worked for CompTIA partners, Microsoft partners, Cisco partners, ISACA partners, (ISC)2 partners, and I've also worked for unaffiliated training centers. My resume didn't change. The content I covered didn't change. The students for the partner organizations and the non-partner organizations got the same class from me. What is the benefit of being a partner?
I also teach ITIL, although scarcely any of the centers I taught for were partners because they viewed partnership as excessively expensive for the number of times they delivered the class.