Can All Student Success Systems be integrated with Major LMS?

I had a conversation this week that had me wondering if all student success systems (also know as retention systems) could be integrated with the major learning management systems. In order to get a quick answer, I looked at the institutions that are using the two kinds of systems to see if I could find links.

As you can see, most retention systems (inner ring) are used with all major LMS vendor (outer ring); an exception would be the Blackboard system.

Retention system - LMS.png

Note:
The data is not necessarily representing market share. We used institutions that had a student success system and a learning management system. We removed institutions for which we only had one or two.