MetaFlows, Inc. is a California-based cybersecurity company that develops and markets the MetaFlows Security System (MSS), a network intrusion detection and prevention system (IDPS) delivered as a SaaS platform. The company was founded by Livio Ricciulli, with contributions from Phillip Porras (SRI International) and Matt Jonkman, building on intrusion detection research originally conducted at the Computer Science Laboratory of SRI International dating back to 1983. MetaFlows was commissioned by the National Science Foundation and the Army Research Office to commercialize network security research. The MSS product combines local network sensors with cloud-based analysis to perform deep-packet inspection, real-time behavioral analysis, malware detection, and multi-session correlation. The system supports virtual sandboxing in the Amazon Cloud and can operate as a hardware appliance capable of sustaining inspection at up to 5 Gbps. The platform is also available on Amazon Web Services Marketplace, allowing deployment on EC2 instances. MetaFlows targets universities, government agencies, and enterprises of varying sizes. Notable customers include the U.S. Department of Justice, Medtronic, the National Transportation Safety Board (NTSB), Tufts University, and the University of Denver, among others. The system has also been deployed operationally at the SCinet network infrastructure for the Supercomputing conference series. The company emphasizes cost-effective delivery of advanced threat detection capabilities, including network anti-virus, sandboxing, and behavioral analysis, through a SaaS model. MetaFlows has received NSF grant funding, an Army Research Office award, and recognition from CIO Review and SC Magazine.