Managed Security Services (MSSP/MDR)
Pure-play managed security service providers: 24/7 SOC-as-a-service, managed detection and response (MDR), managed SIEM/XDR and outsourced security operations delivered as a service rather than sold as software.
ReliaQuest
ReliaQuest operates GreyMatter, a security operations platform that unifies detection, investigation, and response across a customer's existing security…
Ontinue
Ontinue delivers 24/7 Managed Extended Detection and Response built specifically to maximize the value of an organization's existing…
RADICL
A Boulder, Colorado-based cybersecurity-as-a-service provider built specifically for small and mid-sized Defense Industrial Base contractors, combining managed detection…
Arctic Wolf
Managed detection and response provider delivering a 24/7 human 'Concierge Security Team' as a de facto outsourced SOC…
Blackpoint Cyber
Managed detection and response (MDR) platform built by former NSA operatives, delivered exclusively through managed service providers and…
UltraViolet Cyber
A practitioner-led managed security provider blending offensive and defensive operations, from AI-augmented pentesting to 24x7 SOC monitoring, under…
Huntress
Managed detection and response platform purpose-built for small and midsize businesses, delivered primarily through managed service providers rather…
LevelBlue
Managed security services provider spun off from AT&T Cybersecurity in 2024, majority-owned by WillJam Ventures, describing itself as…
eSentire
Waterloo, Canada-based MDR pioneer protecting 2,000+ organizations with a Controlled Autonomy operating model pairing agentic AI and human…
Tenex
Sarasota-based AI-native managed detection and response provider pairing automated triage with human analyst oversight at sub-minute speed.
BlueVoyant
Managed detection and response and third-party cyber risk management provider that monitors client networks and vendor ecosystems from…
Eye Security
Eye Security is a Netherlands-based managed detection and response provider that bundles 24/7 MDR, incident response, and threat…
Expel
Vendor-agnostic managed detection and response provider known for transparent, plain-language alert explanations layered on top of a customer's…
Daylight
Tel Aviv-based managed detection and response provider combining AI agents with human analysts, extended to detect threats against…
CHT Security
Chunghwa Telecom subsidiary providing managed security, SOC and MDR services in Taiwan, recognized by Frost & Sullivan as…
Pondurance
Pondurance delivers risk-based managed detection and response built specifically to give mid-market organizations enterprise-grade protection through a 24/7…
Binary Defense
Binary Defense provides managed detection and response (MDR) and SOC-as-a-service through a vendor-agnostic Managed Open XDR model, founded…
mnemonic
An Oslo-based managed detection and response provider serving major Nordic and European enterprises, recognized by Gartner as a…
Cyderes
Human-led, machine-driven managed detection and response provider ranked among the top 25 MSSPs globally.
Deepwatch
A managed detection and response provider using a named-analyst "Squad" delivery model and deep Splunk-ecosystem ties, backed by…
Beyon Cyber
Bahrain-based managed security provider with a CREST-accredited SOC offering MDR and incident response across the Gulf, built on…
Quorum Cyber
An Edinburgh-based managed detection and response and professional services firm built around Microsoft security technologies, serving mid-market and…
LMNTRIX
Bootstrapped MDR/XDR provider whose Active Defense platform natively integrates deception technology and dark-web intelligence, recognized as an IDC…
Proficio
Proficio is a managed detection and response provider that has run outsourced SOC operations for mid-market and enterprise…