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Cybersecurity Intelligence

Managed Security Service Providers (MSSP) List

Directory of specialized MSSPs providing managed detection and response (MDR), SOC, and threat monitoring.

Browse Ranked List ↓
Verified Rankings 98% Contact Accuracy Updated 2026

Why This Report Matters

As cyber threats grow increasingly sophisticated, standard IT support is no longer sufficient. Managed Security Service Providers (MSSPs) specialize in advanced threat defense, including 24/7 Security Operations Center (SOC) monitoring, penetration testing, compliance management, and endpoint detection and response (EDR).

Partnering with an MSSP ensures your data remains secure while maintaining strict regulatory compliance.

Included Data Fields

MDR & SOC Capabilities
Compliance Certifications
Security Stack Insights

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Get direct emails, phone numbers, and tech stack details for every company in this ranking list.

Ranked Leaderboard List

Sorted by total employee headcount, annual revenue, and service capabilities.

Showing 101 – 125 of 150 Providers
#101

Nomad Holdings Limited

Passenger Wi-Fi, Digital Passenger Experience, Onboard Communications and Networking, Remote Monitoring and Diagnostics, Cybersecurity Solutions for Rail, Operational and Maintenance Solutions

📍 Newcastle upon Tyne 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
Profile →
#102

Stratix

IT Infrastructure Solutions, Cloud Services, Managed Services, Security Services, Consulting and Strategy, Data Center Solutions, Network Solutions

📍 Norcross 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#103

Visual Edge IT

Managed IT Services, IT Consulting, Cloud Services, Cybersecurity Solutions, Data Backup and Recovery, Network Management, Strategic IT Planning, Help Desk Support

📍 North Canton 👥  500 - 1,000 Staff 💰  $100 mil. - $250 mil.
Profile →
#104

Atlas Tech

IT Consulting, Data Analytics, Cloud Services, Managed IT Services, Cybersecurity Solutions, Digital Transformation

📍 North Charleston 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#105

INFORMANTEM SA

IT staffing and workforce solutions, Full lifecycle IT recruiting, Talent acquisition and consulting, Managed services, Project consulting, Cloud consulting and support

📍 Odivelas 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#106

Cyber Security Forum Initiative

Information Technology Solutions, Custom Software Development, IT Consulting, Systems Integration, Network Services, Cloud Computing Solutions, Data Management Services, Cybersecurity Solutions

📍 Omaha 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
Profile →
#107

Advania Norge

IT consulting, Cloud services, IT infrastructure, Managed services, Digital transformation, Software development, Cybersecurity, Support and maintenance

📍 Oslo 👥  500 - 1,000 Staff 💰  $100 mil. - $250 mil.
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#108

AMTI

IT Solutions and Services, System Integration, Cloud Services, IT Infrastructure Setup and Management, Managed Services, Business Process Outsourcing, Consulting and Support

📍 Pasig 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
Profile →
#109

Milner

Digital transformation consulting, Cloud solutions and managed services, Enterprise IT security, Data center services, Unified communications and collaboration, Digital workspace solutions, Application development and management

📍 Peachtree Corners 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#110

ProSys Information

IT Consulting, Cloud Services, Managed Services, Cybersecurity Solutions, Data Analytics, Application Development, Infrastructure Support

📍 Peachtree Corners 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#111

USIS

Government Contract Vehicles Management, Contract Management and Consulting, Program Support Services, Acquisition and Procurement Support, IT and Professional Services Contracting

📍 Pearl River 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#112

Infosys

Consulting, IT Services, Business Solutions, Digital Transformation, Application Development and Maintenance, Infrastructure Management, Systems Integration, Engineering Services, Cloud Services, Data Analytics, Enterprise Mobility

📍 Petaling Jaya 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#113

SofTECH

Cybersecurity Consulting, Information Security Assessment, Risk Management, Compliance and Governance, Incident Response, Security Training and Awareness

📍 Petaluma 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
Profile →
#114

IPM

Cloud Services, IT Infrastructure Management, Cybersecurity Solutions, Consulting Services, Network Solutions, Managed IT Services, Data Backup and Recovery, Help Desk Support

📍 Phoenix 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#115

ManageIT

Application Development, Cloud & Infrastructure Services, Consulting & Advisory, DevOps & Agile Transformation, Data & Analytics, Enterprise Solutions, Quality Assurance & Testing, Cybersecurity Services, Managed IT Services

📍 Phoenix 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#116

MicroAge

IT consulting, Cloud solutions, Managed IT services, Cybersecurity, Backup and disaster recovery, IT infrastructure support, Professional services, Hardware and software procurement

📍 Phoenix 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#117

Expedient

Cloud Solutions, Data Center Services, Managed Services, Disaster Recovery, Compliance and Security, Infrastructure as a Service (IaaS), Hybrid Cloud Solutions, Network Services

📍 Pittsburgh 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#118

ITSS

Digital transformation consulting, Enterprise IT solutions, Cloud migration and management, Cybersecurity services, Software development, Data analytics and business intelligence, IT infrastructure management, Managed IT services, Application development and maintenance, Business process automation

📍 Plan-les-Ouates 👥  500 - 1,000 Staff 💰  $100 mil. - $250 mil.
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#119

Cameo Global

Digital transformation consulting, Business process automation, Technology implementation, Software development, Cloud computing solutions, Data analytics and AI integration, Cybersecurity services

📍 Pleasanton 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#120

Comm-Works

Technology Consulting, Application Development, Digital Transformation, Cloud Services, Data Analytics, Customer Experience Management, Product Engineering, Cybersecurity, DevOps Services, Managed IT Services

📍 Plymouth 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#121

InterOp

IT Infrastructure Solutions, Network Infrastructure, Data Center Solutions, Cloud Services, Cybersecurity Solutions, IT Consulting, Managed Services

📍 Porto Alegre 👥  500 - 1,000 Staff 💰  $100 mil. - $250 mil.
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#122

Safeweb Segurança da Informação

Cybersecurity Solutions, Internet Security, Network Security, Cloud Security, Threat Intelligence, Security Consultancy, Managed Security Services

📍 Porto Alegre 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#123

ITSector

IT Consulting, Managed IT Services, Cloud Solutions, Infrastructure Management, Security Services, Data & Analytics, Application Development, Disaster Recovery, Enterprise Mobility

📍 Porto 👥  500 - 1,000 Staff 💰  $100 mil. - $250 mil.
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#124

NIKSUN

Network Performance Monitoring, Network Security Monitoring, Threat Mitigation, Traffic Analysis, Forensic Investigations, Real-time Packet Capture and Analysis

📍 Princeton 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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#125

CPU

IT Consulting, Cloud Solutions, Managed IT Services, Data Backup and Recovery, Cybersecurity Solutions, Network Design and Implementation, Helpdesk Support

📍 Quebec City 👥  250 - 500 Staff 💰  $50 mil. - $100 mil.
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Frequently Asked Questions

How does an MSSP differ from a standard MSP?

While an MSP focuses on keeping your IT infrastructure running efficiently, an MSSP focuses exclusively on securing it. MSSPs deploy advanced cybersecurity tools, conduct vulnerability assessments, and provide continuous threat hunting.

What is Managed Detection and Response (MDR)?

MDR is an advanced security service offered by MSSPs that combines technology and human expertise to continuously monitor networks, detect malicious activities, and respond to cyber threats rapidly.