CISO Tribune

Vendor comparison · 2 companies

Nozomi Networks vs Quorum Cyber

Nozomi Networks sells a platform for OT and IoT visibility and security that combines visibility from the endpoint to the air with continuous monitoring and AI-powered analysis. Quorum Cyber delivers Microsoft-first, threat-led cyber security services. CISO Tribune files both under OT and ICS security. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Nozomi Networks
  • Quorum Cyber
Nozomi Networks vs Quorum Cyber: Products, Customers and Funding Compared
Nozomi NetworksNozomi Networks sells a platform for OT and IoT visibility and security that combines visibility from the endpoint to the air with continuous monitoring and AI-powered analysis.nozominetworks.comQuorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.com
What it sells
  • Nozomi GuardianA security sensor that passively observes and analyzes local network traffic for OT and IoT asset visibility.
  • Nozomi ArcA sensor that extends coverage to assets that Nozomi Guardian and Guardian Air sensors cannot reach.
  • Nozomi Central Management ConsoleA physical or virtual appliance that manages Guardian network security sensors from a single location.
  • Nozomi Asset IntelligenceA subscription feed that enriches data collected by passive and active discovery and third-party ingestion methods.
  • Vantage IQ[5]An AI assistant that can take the role of a SOC analyst, OT engineer or CISO through custom Personas.
  • Clarity Defend[1][3][6]Managed detection and response service providing 24/7 monitoring, detection and response to attacks.
  • Clarity Extend[1][3]Enhanced security coverage extending monitoring to Microsoft Cloud and third-party technologies across an organization's IT ecosystem.
  • Clarity Protect[1][3]Service that detects and stops threats, reduces cyber risk, and strengthens security across Microsoft and AI environments, including a CTEM offering.
  • Clarity Data & AI[1][3]Service that helps organizations understand, protect and govern data, reducing exposure to insider threats and AI-related risks.
  • Clarity OT[3]Managed detection and response service for operational technology environments.
  • Incident Response Services[3]Services including incident response preparedness, retainer agreements, and emergency MDR for breach investigation and containment.
Categories
Headquarters
Not stated on its pagesEdinburgh, United Kingdom[1]
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Owned by Mitsubishi Electric Corporation since 2026[4][5][7]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • November 9, 2026Nozomi Networks announced that its Vantage for Government platform has achieved FedRAMP Moderate certification.[16]
  • September 16, 2026Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.[12]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Its pages address power generation, transmission and distribution networks, and upstream, midstream and downstream operations. They describe visibility and security across R&D, manufacturing and distribution facilities. On deployment, the pages describe on-prem, hybrid and cloud options, including air-gapped OT networks and globally distributed enterprises.Not written yet
Last verified
September 27, 2026October 7, 2026

Where they overlap

  • Nozomi Networks and Quorum Cyber are both filed under OT and ICS security.

Where they differ, field by field

  • Nozomi Networks's primary category is OT and ICS security; Quorum Cyber's is MDR and managed SOC.
  • Nozomi Networks is also filed under IoT and medical device security. Quorum Cyber is also filed under Incident response and forensics and Security consulting and advisory.
  • Nozomi Networks lists Nozomi Guardian, Nozomi Arc, Nozomi Central Management Console, Nozomi Asset Intelligence and Vantage IQ. Quorum Cyber lists Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
  • Quorum Cyber is headquartered in Edinburgh, United Kingdom.
  • Nozomi Networks is owned by Mitsubishi Electric Corporation, since 2026.

What it sells: Nozomi Networks

What Nozomi Guardian does
Nozomi Guardian sensors can be deployed as hardware appliances, virtual machines, embedded devices or containers. Nozomi Guardian sensors receive and process data from other Nozomi security sensors and collectors and send it to either an on-prem Nozomi Central Management Console or the Nozomi Vantage cloud management platform.
What Nozomi Arc does
Nozomi Arc combines host-based detection and threat prevention with lightweight network sensing. Arc Embedded is a security sensor developed with OEMs to run inside industrial controllers at Purdue levels 0-1. Arc Embedded monitors east-west communications, process variable readings and controller logic changes to detect threats and anomalies.
What Nozomi Central Management Console does
Nozomi CMC collects, aggregates and analyzes data across sites to provide consolidated visibility, management and reporting. Nozomi CMC can be deployed on-prem, at the edge, in a customer cloud or paired with Vantage SaaS.
What Nozomi Asset Intelligence does
Nozomi Asset Intelligence uses artificial intelligence curated by Nozomi Networks Labs data engineers to enhance cyber device profiles with missing information. Asset Intelligence can enrich basic profiles with data from matching assets such as image, detailed description, asset type, vendor, product name, OS and lifecycle.
What Vantage IQ does[5]
Vantage IQ can take the role of a SOC analyst, OT engineer, CISO or any role needed through custom Personas. The AI assistant covers threat investigation, vulnerability prioritization, compliance and board reporting.

Questions about Nozomi Networks and Quorum Cyber

What do Nozomi Networks and Quorum Cyber sell?
Nozomi Networks sells Nozomi Guardian, Nozomi Arc, Nozomi Central Management Console, Nozomi Asset Intelligence and Vantage IQ. Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
Are Nozomi Networks and Quorum Cyber in the same category?
They share OT and ICS security. Nozomi Networks's primary category is OT and ICS security and Quorum Cyber's is MDR and managed SOC.
Where are Nozomi Networks and Quorum Cyber headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who owns Nozomi Networks and Quorum Cyber?
Nozomi Networks is owned by Mitsubishi Electric Corporation, since 2026.
Who are Nozomi Networks and Quorum Cyber sold to?
Its pages address power generation, transmission and distribution networks, and upstream, midstream and downstream operations.
What have Nozomi Networks and Quorum Cyber announced recently?
November 9, 2026: Nozomi Networks announced that its Vantage for Government platform has achieved FedRAMP Moderate certification. September 16, 2026: Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.

About Nozomi Networks

Nozomi Networks sells a platform for OT and IoT visibility and security that combines visibility from the endpoint to the air with continuous monitoring and AI-powered analysis. The Nozomi Networks platform is built for complex industrial, commercial and critical infrastructure environments. Nozomi Networks states that industrial networks can contain hundreds or even thousands of OT and IoT devices from a variety of vendors, many of which are insecure by design.[8][15]

The Nozomi Guardian security sensor passively observes and analyzes local network traffic to provide OT and IoT asset visibility. Nozomi Guardian sensors can be deployed as hardware appliances, virtual machines, embedded devices or containers. Nozomi Guardian sensors receive and process data from other Nozomi security sensors and collectors and send it to either an on-prem Nozomi Central Management Console or the Nozomi Vantage cloud management platform. By combining host-based detection and threat prevention with lightweight network sensing, Nozomi Arc extends coverage to protect assets where Nozomi Guardian and Guardian Air sensors cannot reach. Arc Embedded is a security sensor developed with OEMs to run inside industrial controllers at Purdue levels 0-1. Arc Embedded monitors east-west communications, process variable readings and controller logic changes to detect threats and anomalies. Nozomi Networks offers low-resource sensors that collect asset and network data in remote locations and send it to Guardian for further analysis. Nozomi Networks wireless sensors detect Wi-Fi, Bluetooth, Zigbee, LoRaWAN, Drone RF and other wireless protocols used in OT and IoT environments. Nozomi Networks offers endpoint sensors for Windows, Linux and MacOS endpoints.[1][3][9][10]

Nozomi Central Management Console (CMC) is a physical or virtual appliance that manages hundreds of Guardian network security sensors from a single location. Nozomi CMC collects, aggregates and analyzes data across sites to provide consolidated visibility, management and reporting. Nozomi CMC can be deployed on-prem, at the edge, in a customer cloud or paired with Vantage SaaS. Nozomi CMC enables Guardian sensor management for everything from air-gapped OT networks to globally distributed enterprises. Vantage IQ can take the role of a SOC analyst, OT engineer, CISO or any role needed through custom Personas. The AI assistant covers threat investigation, vulnerability prioritization, compliance and board reporting.[2][11]

The Nozomi Networks platform combines endpoint-to-air sensors, passive and active data collection, OT/IoT protocol support and third-party IT asset data to provide an OT and IoT asset inventory. Nozomi Asset Intelligence is a subscription feed that enriches data collected by passive and active discovery and third-party ingestion methods. Nozomi Asset Intelligence uses artificial intelligence curated by Nozomi Networks Labs data engineers to enhance cyber device profiles with missing information. Asset Intelligence can enrich basic profiles with data from matching assets such as image, detailed description, asset type, vendor, product name, OS and lifecycle. On deployment, the Nozomi Networks platform begins monitoring device communications in learning mode, down to process-level variables. In protection mode, the platform uses behavior analytics to monitor and alert on suspicious events that deviate from baselines.[8][10][11][12][14]

The Nozomi Networks platform automatically identifies and scores open OT and IoT vulnerabilities in devices. Nozomi Networks collects vulnerability information through network monitoring, endpoint monitoring and smart polling. Nozomi Networks Labs curates OT- and IoT-specific threat intelligence used to identify early indicators of compromise in sensitive and unpatchable environments. Nozomi Networks delivers a network monitoring solution built for OT, IoT and the industrial operators that rely on them. The network monitoring solution uses deep packet inspection that covers a wide range of industrial, IoT and IT protocols. The Nozomi Networks platform includes dashboards, query capabilities, playbooks and forensic tools to help coordinate remediation efforts across teams. The Nozomi Networks platform measures risk with multi-factor scoring at the asset, zone, site and enterprise levels.[8][13]

The Nozomi Networks platform enables data center administrators to gain visibility into their infrastructure and diagnose threats and anomalies. For data centers, the Nozomi platform provides an inventory of OT and IoT assets, risk-based vulnerability management, continuous threat and anomaly detection, and AI-powered SOC assistance. Nozomi Networks states that large data centers increasingly operate their own substations and that those substations must be secured in compliance with strict cyber regulations for electric utilities such as NERC CIP in North America. The Nozomi Networks platform is built to protect OT and IoT networks in commercial, residential and industrial environments from cyber and operational risk.[14]

Nozomi Networks says its global ecosystem of partners has been Nozomi Networks certified to deploy on-prem, as part of a hybrid network, with cloud resources, or manage it all for the customer. Nozomi Networks partner services range from OT and IoT network assessments with solution design, deployment, tuning and support to managed platform, detection, operational analytics and response services.[1][6][11][15]

Nozomi Networks on the record

Sources

Nozomi Networks full record

  1. [1]Guardian Sensor | OT Network MonitoringNozomi Networks · undated page, accessed September 27, 2026 · Tier A
  2. [2]VantageNozomi Networks · nozominetworks.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]OT & IoT Endpoint Security | Nozomi ArcNozomi Networks · undated page, accessed September 27, 2026 · Tier A
  4. [4]Nozomi networks enters next phase of growth as mitsubishi electric completes acquisitionNozomi Networks · nozominetworks.com · published January 28, 2026 · Tier A
  5. [5]OT Security Platform | Nozomi NetworksNozomi Networks · undated page, accessed October 27, 2026 · Tier A
  6. [6]The Leader in OT Cybersecurity Technology | Nozomi NetworksNozomi Networks · undated page, accessed October 27, 2026 · Tier A
  7. [7]Industrial Cyber Threat Detection & ResponseNozomi Networks · undated page, accessed October 27, 2026 · Tier A
  8. [8]OT & IoT Vulnerability Management | Nozomi NetworksNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  9. [9]Technical Specifications | Nozomi NetworksNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  10. [10]OT Asset Discovery and Inventory ManagementNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  11. [11]Nozomi CMC | On Prem Security ManagementNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  12. [12]Cybersecurity Asset Intelligence | Nozomi NetworksNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  13. [13]Continuous OT and IoT Network MonitoringNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  14. [14]Data Center Cybersecurity Solutions | Nozomi NetworksNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  15. [15]Building Automation System CybersecurityNozomi Networks · undated page, accessed November 10, 2026 · Tier A
  16. [16]Nozomi Networks Vantage for Government Achieves FedRAMP Moderate CertificationNozomi Networks · published November 9, 2026 · Tier A

Quorum Cyber full record

  1. [1]quorumcyber.comQuorum Cyber · quorumcyber.com · undated page, accessed October 7, 2026 · Tier A
  2. [2]Difenda will rebrand as quorum cyberQuorum Cyber · quorumcyber.com · undated page, accessed October 7, 2026 · Tier A
  3. [3]Microsoft Cyber Security Services Provider | Quorum CyberQuorum Cyber · undated page, accessed October 31, 2026 · Tier A
  4. [4]About Quorum | Cyber Security CompanyQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  5. [5]Why I’m Passionate about Protecting British Organisations from Cybercrime - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Managed Security Services | Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Cyber Resilience Assessment | Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Quorum Cyber Managed XDR integrates with Microsoft Security Technology - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]Quorum Cyber is leveraging Copilot for Security at scale - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]Customers Informed of Microsoft Data Breach - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]Quorum Cyber appoints Chief Information Security OfficerQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Quorum Cyber Announces Intent to Acquire Ontinue, Building an Unrivaled Microsoft-First Agentic SOC for the Autonomous Threat EraPRNewswire · published September 16, 2026 · Tier A

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