FlexiSPY - FlexiSPY is the original "phone spy" software - it's been on the market since 2005.
CurrentWare BrowseControl - BrowseControl web filtering software blocks websites based on URLs and categories. Policies can be customized for each user, department, or OU. Includes other features such as an app blocker, port filter, and download/upload blocker.
TheOneSpy - TheOneSpy™ is the World’s most advance cell phone spy app and computer monitoring software.
Qustodio - Free parental control software. Monitor and track your child's online activity. Block dangerous sites and protect kids from online bullying.
TiSPY - TiSPY is leading parental control software which allows parents to track kids smartphone activities.
NxFilter - Best performance. You don't want to slow down your network by installing a network security software. NxFilter is a light-weight DNS filter. It doesn't cause any latency issue in your network.