Comodo Cybersecurity headquartered in New Jersey offers Comodo Dome Shield from the Cdome suite of products, providing web filtering of malicious or inappropriate, among other features.
The following is a quick overview of editions offered by other software in similar categories
Untangle NG Firewall is an open-source firewall and gateway security platform. It offers a free core firewall platform with paid add-ons, and a cloud-based management platform with a variety of deployment options for smaller teams.
DNSFilter headquartered in Waltham offers DNS-Based Content Filtering & Threat Protection.
WebTitan is the web security gateway and content filtering solution offered by TitanHQ.