PagerDuty - Cloud based monitoring service
ManageEngine RecoveryManager Plus - RecoveryManager Plus is one such enterprise backup solution which has the ability to easily backup and restores both the domain controllers and virtual machines.
OpsGenie - Alerting and On-Call Management for Dev&Ops Teams
Lastpass - LastPass is an online password manager and form filler that makes web browsing easier and more secure.
PagerTree - On-Call. Simplified. PagerTree empowers teams to share oncall responsibility and respond faster when incidents occur.
SECDO - SECDO offers automated endpoint security and incident response solutions