Network Security Monitoring Providers

123 providers

Network Security Monitoring (NSM) continuously watches network traffic for intrusions, lateral movement, data exfiltration, and other suspicious activity. Managed NSM deploys sensors at key network boundaries and internal segments, using signature-based detection, behavioral analytics, and flow analysis to catch threats that endpoint tools may miss.

Organizations with complex or distributed networks use NSM to spot traffic patterns they'd otherwise never see. MSSPs run this as a managed service because it needs specialized infrastructure, constant tuning to cut noise, and analysts who can tell real threats from normal traffic in high-volume environments.

How to Evaluate an MSSP for Network Security Monitoring

  • Ask where the provider deploys network sensors and whether they cover both north-south (perimeter) and east-west (internal lateral) traffic.
  • Understand the detection methods used: signature-based IDS, behavioral analytics, and flow analysis each catch different types of threats.
  • Clarify the provider's approach to encrypted traffic monitoring, since increasing TLS adoption limits visibility unless SSL/TLS inspection is in place.
  • Ask how the MSSP handles the high alert volume that network monitoring generates, and what their false positive reduction strategy looks like.

Top Network Security Monitoring Providers

123 providers offering Network Security Monitoring, compared by delivery model, response depth, scope, and reporting.

MSSPProviders.io is a curated directory of managed security providers. Listings are informational and do not imply ranking or endorsement.

Platforms commonly paired with this service

Palo Alto Networks, Fortinet, Cisco Firepower, Darktrace

Sophos

Verified

Best for: Startups to Enterprise orgs, Retail & E-Commerce, Manufacturing

Sophos MDR delivers managed detection and response built on the Sophos security ecosystem, offering both Sophos-native and multi-vendor environment support for...

Abingdon, UK1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityIncident Response+8 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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12 Points Technologies logo

12 Points Technologies

Best for: SMB to Mid-Market orgs, Government & Public Sector, Legal

12 Points Technologies is a veteran-owned managed IT and cybersecurity provider in Omaha, Nebraska, offering a Secure by Design approach that integrates advance...

Omaha, NE51-200 employeesNot disclosed SLA
Managed Detection & Response (MDR)Vulnerability ManagementEndpoint ProtectionEmail Security+2 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Abacus logo

Abacus

Best for: SMB to Mid-Market orgs, Financial Services

Abacus Group provides managed IT and cybersecurity services specifically designed for alternative investment firms, hedge funds, and private equity organization...

New York, NY51-200 employees15 minutes SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityEmail Security+4 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Accent Consulting logo

Accent Consulting

Best for: SMB to Mid-Market orgs, Manufacturing, Education

Accent Consulting provides managed IT and cybersecurity services to businesses in Indiana, offering proactive security monitoring and compliance support.

Lafayette, IN51-200 employees1 hour SLA
Managed Detection & Response (MDR)Endpoint ProtectionVulnerability ManagementSecurity Awareness Training+2 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Access Systems logo

Access Systems

Best for: SMB to Mid-Market orgs, Manufacturing

Access Systems is a SOC 2 Type 1 certified managed IT provider in Iowa delivering layered cybersecurity protection through their Advanced Cybersecurity Protecti...

Waukee, IA51-200 employeesNot disclosed SLA
Managed Detection & Response (MDR)Endpoint ProtectionEmail SecurityNetwork Security Monitoring
Serves: SMB (51-200), Mid-Market (201-1000)
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AKATI Sekurity

Best for: Mid-Market to Enterprise orgs, Telecommunications, Government & Public Sector

AKATI Sekurity is a Malaysian-based cybersecurity firm providing managed security services, penetration testing, and digital forensics across Southeast Asia.

Kuala Lumpur, Malaysia51-200 employees30 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Penetration TestingIncident Response+3 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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Alert Logic

Best for: SMB to Enterprise orgs, Retail & E-Commerce, Technology

Alert Logic, now part of Fortra, provides managed detection and response with an integrated technology platform that combines SIEM, IDS, vulnerability scanning,...

Houston, TX500-1000 employees15 minutes SLA
Managed Detection & Response (MDR)SIEM ManagementVulnerability ManagementCloud Security+3 more
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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Alvarez Technology logo

Alvarez Technology

Best for: SMB to Mid-Market orgs, Manufacturing

Alvarez Technology Group provides managed IT and cybersecurity services to businesses on California's Central Coast, offering security monitoring and compliance...

Salinas, CA51-200 employees1 hour SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityVulnerability Management+2 more
Serves: SMB (51-200), Mid-Market (201-1000)
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AMSYS Innovative Solutions

Best for: SMB to Mid-Market orgs, Energy & Utilities, Manufacturing

AMSYS Innovative Solutions delivers managed IT and cybersecurity services to businesses in the Houston area, specializing in proactive security monitoring and c...

Houston, TX51-200 employees1 hour SLA
Managed Detection & Response (MDR)Endpoint ProtectionNetwork Security MonitoringVulnerability Management+4 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Andromeda Technology Solutions

Best for: SMB to Mid-Market orgs, Manufacturing, Transportation & Logistics

Andromeda Technology Solutions is a managed IT and cybersecurity provider specializing in practical, compliance-aligned security for manufacturers and industria...

Lockport, IL51-200 employeesNot disclosed SLA
Compliance ManagementIdentity & Access Management (IAM)Endpoint ProtectionNetwork Security Monitoring
Serves: SMB (51-200), Mid-Market (201-1000)
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ArmorPoint logo

ArmorPoint

Best for: SMB to Mid-Market orgs, Manufacturing, Technology

ArmorPoint delivers unified managed security operations combining SIEM, SOC-as-a-Service, and network operations into a single platform for mid-market organizat...

Phoenix, AZ51-200 employees30 minutes SLA
Security Operations Center as a Service (SOCaaS)SIEM ManagementManaged Detection & Response (MDR)Vulnerability Management+1 more
Serves: SMB (51-200), Mid-Market (201-1000)
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AT&T Cybersecurity logo

AT&T Cybersecurity

Best for: Mid-Market to Enterprise orgs, Retail & E-Commerce, Manufacturing

AT&T Cybersecurity, building on the AlienVault acquisition, delivers managed threat detection and response services powered by the USM Anywhere platform and AT&...

San Antonio, TX1000+ employees30 minutes SLA
Managed Detection & Response (MDR)SIEM ManagementVulnerability ManagementEndpoint Protection+5 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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Axians

Best for: Mid-Market to Enterprise orgs, Government & Public Sector, Manufacturing

Axians provides managed cybersecurity services, SOC operations, and network security management as the ICT brand of the VINCI Energies group across Europe.

Paris, France1000+ employeesNot disclosed SLA
Security Operations Center as a Service (SOCaaS)Firewall ManagementNetwork Security MonitoringManaged Detection & Response (MDR)+1 more
Serves: Mid-Market (201-1000), Enterprise (1000+)
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BAE Systems Digital Intelligence

Best for: Enterprise orgs, Government & Public Sector, Defense & Aerospace

BAE Systems Digital Intelligence delivers managed security services, threat intelligence, and cyber defense for government and critical infrastructure clients,...

Guildford, UK1000+ employeesNot disclosed SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Threat IntelligenceIncident Response+1 more
Serves: Enterprise (1000+)
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Ballast Services

Best for: SMB to Mid-Market orgs, Manufacturing

Ballast Services provides managed IT and cybersecurity services to businesses in Florida, offering security monitoring, compliance support, and cloud solutions.

Oldsmar, FL51-200 employees1 hour SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityVulnerability Management+2 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Barracuda Networks

Best for: Startups to Mid-Market orgs, Education, Government & Public Sector

Barracuda Networks delivers managed XDR, email security, and network protection services, with a strong focus on enabling MSPs and MSSPs through its partner-cen...

Campbell, CA1000+ employeesNot disclosed SLA
Managed Detection & Response (MDR)Email SecurityEndpoint ProtectionNetwork Security Monitoring+2 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)
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BetterWorld Technology

Best for: SMB to Mid-Market orgs, Technology, Education

BetterWorld Technology is a Certified B Corporation and managed IT services provider delivering cybersecurity, cloud solutions, and managed services to organiza...

Oak Brook, IL51-200 employeesNot disclosed SLA
Managed Detection & Response (MDR)Endpoint ProtectionNetwork Security MonitoringCloud Security+3 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Binary Defense logo

Binary Defense

Best for: SMB to Enterprise orgs, Manufacturing, Technology

Binary Defense provides managed detection and response and SOC services with a focus on proactive threat hunting and human-driven security operations for mid-ma...

Stow, OH200-500 employees30 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)Endpoint ProtectionIncident Response+3 more
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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Bitdefender logo

Bitdefender

Best for: SMB to Enterprise orgs, Technology, Education

Bitdefender provides MDR through its GravityZone platform, offering 24/7 security monitoring, threat hunting, and incident response for organizations of all siz...

Bucharest, Romania1000+ employeesNot disclosed SLA
Managed Detection & Response (MDR)Endpoint ProtectionCloud SecurityThreat Intelligence+2 more
Serves: SMB (51-200), Mid-Market (201-1000), Enterprise (1000+)
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Bitlyft logo

Bitlyft

Best for: SMB to Mid-Market orgs, Energy & Utilities, Government & Public Sector

Bitlyft is a US-based MDR provider delivering True MDR with 24/7/365 monitoring by US-based Tier 3 analysts, managed SIEM, SOC-as-a-Service, and the AIR automat...

Grand Rapids, MI51-200 employeesNot disclosed SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementThreat Intelligence+5 more
Serves: SMB (51-200), Mid-Market (201-1000)
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Blackpoint Cyber logo

Blackpoint Cyber

Best for: Startups to Mid-Market orgs, Legal, Government & Public Sector

Blackpoint Cyber delivers managed detection and response through its SNAP-Defense platform, focusing on real-time threat response and lateral movement detection...

Ellicott City, MD200-500 employees15 minutes SLA
Managed Detection & Response (MDR)Endpoint ProtectionIncident ResponseThreat Intelligence+2 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)
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Blumira logo

Blumira

Best for: Startups to Mid-Market orgs, Technology, Education

Blumira provides automated threat detection and response designed for small and mid-size organizations that lack dedicated security teams, with a focus on simpl...

Ann Arbor, MI51-200 employees1 hour SLA
SIEM ManagementManaged Detection & Response (MDR)Cloud SecurityCompliance Management+2 more
Serves: Startups (1-50), SMB (51-200), Mid-Market (201-1000)
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Brite

Best for: SMB to Mid-Market orgs, Education, Manufacturing

Brite provides managed cybersecurity and IT services to organizations across New York and the Northeast, offering SOC-as-a-Service, vulnerability management, an...

Victor, NY51-200 employees1 hour SLA
Security Operations Center as a Service (SOCaaS)Managed Detection & Response (MDR)Vulnerability ManagementEndpoint Protection+4 more
Serves: SMB (51-200), Mid-Market (201-1000)
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BT Security logo

BT Security

Best for: Enterprise orgs, Government & Public Sector, Telecommunications

BT Security is the cybersecurity division of British Telecom, one of the world's largest telecom operators, delivering managed security services to 6,400+ enter...

London, UK1000+ employees15 minutes SLA
Managed Detection & Response (MDR)Security Operations Center as a Service (SOCaaS)SIEM ManagementNetwork Security Monitoring+5 more
Serves: Enterprise (1000+)
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