NDR vendors in the United States
23 of the 30 NDR vendors we list are based in the United States. 2 are public, 6 are owned by another company and 15 are private. The oldest, NETSCOUT, was founded in 1984. By revenue from annual reports, the largest company here is Fortinet ($6.8bn in FY2025).
Companies focused on network detection and response in the United States
10 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
ARIA Cybersecurity ARIA Cybersecurity provides AI-driven threat detection and response solutions for IT and OT infrastructure. | Lowell, United States | Owned by CSPi | |||
Corelight Corelight provides network detection and response solutions for cybersecurity teams. | San Francisco, United States | 2013 | Private | ||
ExtraHop ExtraHop provides network detection and response for security and performance. | Seattle, United States | 2007 | Owned by Bain Capital and Crosspoint Capital Partners | ||
Fidelis Security Fidelis Security provides cybersecurity solutions for enterprises and government agencies. | Riverside, United States | 2003 | Owned by Partner One | ||
Lumu Lumu provides network detection and response to identify and stop cyber threats in real time. | Doral, United States | Private | |||
NetWitness NetWitness provides cybersecurity platforms for threat detection, investigation and response across IT and OT environments. | Riverside, United States | 1997 | Private | ||
PathSolutions PathSolutions sells TotalView, a network operations intelligence platform. | Santa Clara, United States | 1998 | Private | ||
Progress Flowmon network detection and response, plus MOVEit file transfer, Kemp LoadMaster load balancing, ShareFile, Chef, Telerik and other business software. | Burlington, United States | Private | |||
Stamus Networks Stamus Networks provides network detection and response systems for enterprise security teams. | Indianapolis, United States | 2014 | Private | ||
Vectra AI Vectra AI provides AI-native security and observability to detect and respond to cyber threats. | San Jose, United States | 2011 | Private |
Also active in network detection and response
13 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Fortinet Fortinet provides cybersecurity solutions and services, including networking and security convergence, for enterprises and governments. | Sunnyvale, United States | 2000 | 15,109 staff | Public, FTNT | $6.8bn (FY2025) |
NETSCOUT NETSCOUT provides real-time network visibility, observability, cybersecurity, and DDoS protection solutions. | Westford, United States | 1984 | Public, NTCT | $859.5m (FY2026) | |
AtlasCyber Provides agentic threat intelligence and validation for critical infrastructure security teams. | Merrimack, United States | Private | |||
Claroty Claroty provides cybersecurity for cyber-physical systems in industrial, healthcare, and commercial settings. | New York, United States | Private | |||
Exabeam Exabeam provides security operations platforms that use behavioural analytics to detect and respond to threats. | Broomfield, United States | 2013 | Owned by Thoma Bravo | ||
G Galvanick Galvanick provides behavioral threat detection for operational technology environments. | Seattle, United States | Private | |||
GreyNoise Intelligence GreyNoise Intelligence provides real-time network threat intelligence. | Washington, D.C., United States | 2017 | Private | ||
Hillstone Networks Hillstone Networks provides cyber security products including firewalls, threat detection and cloud workload protection. | Santa Clara, United States | Private | |||
Infoblox Infoblox provides networking and security software for DNS, DHCP and IP address management. | Santa Clara, United States | Private | |||
Nozomi Networks Nozomi Networks provides OT and IoT security solutions for critical infrastructure, offering asset visibility and threat detection. | San Francisco, United States | Owned by Mitsubishi Electric | |||
Ordr Ordr provides a platform that discovers and enforces security policies for connected devices across IT, IoT, OT, and IoMT. | Santa Clara, United States | 2015 | Private | ||
Stellar Cyber Stellar Cyber provides an AI-native security operations platform that unifies detection and response tools. | San Jose, United States | 2015 | Private | ||
Elisity Elisity provides identity-based microsegmentation software to contain lateral movement across enterprise networks. | Dallas, United States | 2018 | Owned by IonQ |
More NDR vendors
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