I like #7 because it has a very unique and memorable icon, but I think it would make more sense if it implied data flow. Maybe adding arrows or something directional would help?
I'm afraid I don't like the idea of "MSP" being the target visual since that's an industry acronym and it's popular. I wasn't aware that I didn't like that until now, so I'm sorry that I didn't say something sooner.
I understand..., thanx for information anyway, here is another try, where M is made from three separate pieces. Arrow is going through, making them integrated..
And (sorry for many messages), the most important part of our name is "integrations". Can you make that word blue and make "MSP" gray, so that "integrations" stands out more?