Managed security service providers

N-able provides cybersecurity and IT management software for managed service providers and businesses.

GMV Innovating Solutions is a technology group that provides solutions, services and products across many sectors.

Australia and New Zealand's largest pure-play cybersecurity firm with offices in every major ANZ capital. CREST ANZ accredited and IRAP-listed for Australian Government testing.

US-headquartered cybersecurity consultancy with 800+ employees, serving ~40% of the Fortune 500. FedRAMP 3PAO, PCI QSA, and HITRUST accreditations.

Argos Security GmbH is a German cyber defence provider with an AI-supported centre in Munich.

Jones IT provides managed IT services, cybersecurity, and compliance support to businesses in the San Francisco Bay Area.

InterIntra is an Australian managed IT and cyber security provider.

Actus-Info is a Polish operator and integrator that provides a full range of telecommunications and IT services.

Alcott Enterprises is a managed IT service provider and cybersecurity company based in Los Angeles.

Alpha Code Technologies is a managed security services provider based in Jakarta, Indonesia.

Bondgate IT is a managed service provider founded in 1998.

Boston Managed IT is a managed service provider based in Waltham, Massachusetts, founded in 2017.

ColdBoot is a Budapest-based Hungarian IT company that serves small and medium-sized businesses and private individuals.

cycura provides Microsoft tenant security consulting and managed security services for businesses.

Cyber advisory and managed security services, including managed extended detection and response, cloud security, digital identity and threat intelligence, from a global professional services network.

Exclusive Networks is a global cybersecurity specialist that distributes and supports security solutions through partners.

Globalgig provides managed security and network services to enterprises across multiple countries.

Gtd is a technology and telecommunications company with an international presence across seven countries.

Infysec provides cyber security services, training, and research and development.

Integris provides managed IT, cybersecurity, AI and cloud services to small and midsize businesses.

ITSecOps provides managed IT, cybersecurity and compliance services to organisations worldwide.

MDSI is an IT services company based in La Réunion.

MonsterCloud provides managed cloud, IT and cyber security services, including ransomware recovery, to businesses across the United States.

Netrio provides managed IT, cybersecurity, cloud, and connectivity services to mid-market enterprises.

Provides managed IT support, cybersecurity services and custom software to small businesses.

nuHarbor provides cybersecurity services and managed security operations to organisations across government, healthcare, finance and enterprise.

Nuvol Cybersecurity is a boutique cybersecurity firm founded in 2017 in Panama.

REJIS provides technology solutions for public safety and government agencies.

Schwarz Digits is the IT and digital division of Schwarz Group.

SecureNET Systems provides IT outsourcing and cybersecurity services to small and medium businesses in Bucharest and Ilfov.

SIBERLOCK is a cybersecurity and consultancy firm based in Turkey.

Provides managed IT services, cybersecurity, compliance support and AI adoption guidance to businesses.

Provides managed IT services including security, cloud desktops, networks and AI deployment support.

Z-JAK Technologies is a Louisville-based provider of managed IT and cybersecurity services for small and midsize businesses, typically with 5 to 150 employees.

Cloudrise provides security services to enterprises and technology partners.

Provides managed security services and security operations centre services in Thailand.

ITSS provides managed cybersecurity services including detection, response, and penetration testing from Dubai.

Managed security operations, threat intelligence and incident response services delivered from global security operations centres by an IT infrastructure services provider.

Littlefish provides managed IT services, cyber security, digital solutions, and data and AI services to organisations.

Marlink provides managed network, connectivity and cybersecurity services for remote maritime and land operations.

Cybersecurity consulting, transformation and managed security services covering risk and compliance, secure business enablement and cyber resilience, from a global IT services company.

Optiv advises, deploys, and operates cybersecurity programs for organizations.

System Force IT provides managed IT support, cyber security, and Microsoft 365 services to UK SMEs.

OpenText provides software and services for managing information across an organisation.

NETSCOUT provides real-time network visibility, observability, cybersecurity, and DDoS protection solutions.

Fastly provides an edge cloud platform that helps businesses deliver, secure, and deploy applications and AI workloads.

Allot provides network intelligence and security solutions for service providers and enterprises.

IBM is a technology company that sells software, infrastructure, and consulting services.

CREST and CHECK-accredited European managed services provider delivering penetration testing with deep infrastructure and cloud hosting expertise.

Managed security provider that now runs Trustwave's SpiderLabs penetration testing team, with CREST-accredited testing, red and purple teaming, and deep PCI DSS expertise.

Global Big Four professional services firm delivering CREST, CHECK, and CBEST-accredited penetration testing and red teaming services from London, serving the UK's largest enterprises and regulated organisations.

CREST-accredited pan-European cybersecurity services provider delivering penetration testing and managed security from Dublin with a strong UK and Ireland presence.

Miami-based cybersecurity firm with 300+ employees and deep healthcare/HIPAA expertise. Delivering pen testing since 2000.

Sydney-headquartered Australian cybersecurity firm founded in 1997, now part of Infosys. CREST-approved with OSCP, OSCE, and OSEE-certified testers.

CREST and CHECK-accredited UK penetration testing and managed security provider formed in 2026 from Pentest People, Bulletproof, and Target Defense, with CREST STAR/TLPT-FS capability and the GuardNest vulnerability management platform.

Australian CREST-accredited cybersecurity consultancy formed from the 2021 Privasec, Naviro, AvertRo, and Theta merger. Risk-led offensive security with strong APRA and Essential Eight programme work.

London-based cybersecurity firm offering unlimited, fixed-price penetration testing and red teaming services with ISO 27001 certification and a unique subscription model.

Swiss cybersecurity firm with major Singapore operation. CREST accredited, CSA-licensed in Singapore. Manual exploitation focus with the proprietary MAD reporting platform.

CREST-accredited UK cyber security and data protection consultancy offering penetration testing, ISO consultancy, and managed SOC services from offices across the UK and Ireland.

Ethical hacking team within Orange Cyberdefense with a 20+ year track record. Known for building industry-standard security tools and groundbreaking research.

CHECK and CREST-accredited Birmingham-based cyber security consultancy with over 15 years of experience delivering penetration testing, red teaming, and OT security assessments for government and private sector clients.

Community-driven penetration testing firm known for free security education, open-source tools, Wild West Hackin' Fest, and practical offensive security services.

Australian senior-led boutique pen testing firm with consultants in Sydney, Melbourne, and Brisbane. CREST CRT, OSCP, and OSCE certified testers.

Award-winning Cheltenham-based cybersecurity consultancy with NCSC CHECK Green Light status and CREST approval, specialising in defence, government, and critical national infrastructure security.

Award-winning CREST-certified managed cyber security and IT support provider with offices in Bristol, London, and Manchester, specialising in penetration testing and Microsoft security technologies.

Italian cybersecurity group that absorbed Swascan, offering offensive security and vulnerability assessment through its Cyber Competence Center.

Potenza Services is a veteran-owned firm based in Tampa, Florida, founded in 2012.

CREST-accredited Manchester-based cyber security firm delivering penetration testing, managed security services, and compliance consultancy across the UK, Europe, and the USA.

7AI provides AI agents that automate security operations centre tasks for enterprises.

Provides cloud security, compliance and managed detection and response services to regulated industries.

AT&T Cybersecurity provides network security services to businesses of all sizes.

BARR Advisory helps organisations establish, manage, and audit cybersecurity and compliance programmes.

Cato Networks provides a SASE platform that secures enterprise, cloud and AI interactions.

Corero Network Security provides automatic DDoS protection for businesses and service providers.

Critical Start provides managed detection and response services to monitor, investigate, and resolve security threats for organisations.

Provides dark web intelligence and cyber exposure monitoring to managed security service providers.

CyberSheath provides cybersecurity compliance services for DOD contractors, focusing on CMMC, DFARS, and NIST standards.

Cyderes provides managed cybersecurity services including identity, threat detection, and exposure management.

Israeli firm selling in-vehicle intrusion detection, vulnerability tools, compliance software and vehicle SOC services to carmakers.

Computer and IT infrastructure maker whose PowerProtect Data Manager software and Data Domain appliances back up data, detect ransomware and speed recovery.

Druva provides a fully managed SaaS platform for data backup, recovery, and cyber resilience.

EC-Council is a cybersecurity certification and training body.

eSentire provides managed detection and response services to protect organisations from cyber threats.

Expel provides managed detection and response security services using AI and human analysts.

Cybersecurity consulting and managed services covering security transformation, incident response, data protection and privacy, identity and privileged access, and operational technology security.

Flowtriq provides real-time DDoS detection and automatic mitigation for servers and network infrastructure.

Foresite provides managed detection and response services using agentic AI for security operations.

Gtd Colombia sells technology solutions for businesses in Colombia.

Gtd Perú provides technology solutions for businesses.

HB Technologies provides smart card and digital security solutions for government, banking, telecom and transport sectors.

Immunefi runs bug bounty programmes and security services for cryptocurrency and smart contract projects.

Cyber security consulting covering strategy and governance, security transformation and cyber threat management, plus cyber managed services and cloud security from member firms.

nFlo is a Polish technology company based in Warsaw.

Ontinue provides managed detection and response services for Microsoft security customers.

PowerDMARC provides a cloud-based platform for email authentication and domain security.

Quzara provides FedRAMP compliance advisory and managed detection and response services.

French security evaluation lab (ITSEF/CESTI) recognised by the PCI SSC for PTS device evaluation, plus EMVCo and Common Criteria.

Swimlane provides agentic AI automation for security operations, vulnerability management, and compliance.

Team Cymru provides global threat intelligence from internet traffic for proactive defence.

UnderDefense provides managed detection and response, incident response, and compliance automation services.

Cybersecurity consulting and managed security services covering cyber strategy, resilience, zero trust protection and operational technology security, within a global IT services firm.

Cybersecurity consulting and engineering for US government and industry, including threat hunting, zero trust, incident response and defence of critical infrastructure and weapon systems.

Provides penetration testing, PCI ASV scanning, and managed security services for compliance and threat detection.

Indian firm offering vehicle and ECU penetration testing, R155 and 21434 consulting, plus a vehicle SOC.

IntelliGRC provides software that helps managed service providers automate cybersecurity compliance and audit readiness.

NuSummit provides AI, cybersecurity, cloud, and digital engineering services to financial institutions.