$SFOR ACS CIO in his email below has one Fed Vendor which they had as a partner on their website https://www.advancedcybersecurity.com/
( They just updated & Added Govt Entities )
If you remember the threat simulation exercise for which Bo was invited https://bit.ly/2GGPp78
, Guide Point was involved as well.
ACS is one of their Technology vendors @ https://www.guidepointsecurity.com/technologies/
Hope it helps.