Service type

Managed Security Service Providers

Huntress

Managed endpoint, identity, and SIEM monitoring with human SOC investigation, incident reports, and supported containment actions inside the Huntress platform.

EndpointsIdentity & AccessEmail

What they do Contain threats MDR
Market SMBMSP/MSSP
Price Quote-based pricing tied to endpoints, identities, data sources, and learners

You still own Deploying agents and configuring Microsoft 365, SIEM, PSA, and ticketing integrations

Armis Managed Threat Service

Threat hunting, suspicious-activity review, alert enrichment, risk-based policy tuning, weekly findings, trend reviews and investigation support around Armis Centrix.

EndpointsNetworkOT/ICS

What they do Investigate and advise MSSP
Market Mid-MarketEnterprise
Price G-Cloud examples from £134,400 per asset block*

You still own Approving or executing containment actions in NAC, firewall, endpoint, identity or ITSM tools

Hybrid or fully outsourced SOC operation with 24/7 monitoring, alert investigation, threat hunting, threat intelligence, SIEM and SOAR enhancement, incident response leadership and detection improvement across agreed environments.

EndpointsCloud WorkloadsIdentity & Access

What they do Run the SOC SOCaaS
Market Mid-MarketEnterprise
Price Public G-Cloud references by user, server and scope

You still own Defining whether the engagement is hybrid, fully outsourced or limited to a specific SOC function

BT Managed Sentinel

24x7 managed Microsoft Sentinel monitoring, rule tuning, SOC investigation, incident reporting and buyer guidance

NetworkCloud WorkloadsIdentity & Access

What they do Investigate and advise MSSP
Market EnterpriseMid-Market
Price Public G-Cloud price from £6,275 per instance

You still own Maintaining Azure, Microsoft Sentinel and required Microsoft licences

Cyderes MDR

24/7 MDR with analyst investigation, AI-assisted correlation, identity and asset context through Meridian, customer-specific detection and response paths, optional tool management and approved containment actions.

EndpointsCloud WorkloadsIdentity & Access

What they do Co-manage the SOC Co-managed SOC
Market Mid-MarketEnterprise
Price Quote-based subscription by environment size and service level

You still own Defining rules of engagement and which containment actions Cyderes can take without approval

Deepwatch Guardian MDR Platform

24/7 co-managed MDR with alert validation, investigation, threat hunting, detection engineering, response workflow support, named experts and a shared Security Center layered over supported buyer tools.

EndpointsCloud WorkloadsIdentity & Access

What they do Co-manage the SOC Co-managed SOC
Market Mid-MarketEnterprise
Price Quote-based through direct or marketplace scoping

You still own Keeping SIEM, EDR, cloud, identity and SaaS telemetry connected and useful

Netsurion Managed Open XDR

Co-managed Open XDR with managed SIEM, 24/7 SOC monitoring, workflow automation, threat hunting, log retention, compliance reporting and package-dependent endpoint, vulnerability and incident-support options.

EndpointsCloud WorkloadsIdentity & Access

What they do Co-manage the SOC Co-managed SOC
Market SMBMid-Market
Price Quote-based, with pay-as-you-grow packaging referenced for MSP buyers

You still own Choosing which endpoints, cloud services, identity systems, network tools and SaaS sources are in scope

24/7 managed detection, triage, investigation and contracted response through Orange Cyberdefense CyberSOCs, Core Fusion and supported EDR, NDR, SIEM, cloud and OT telemetry

EndpointsNetworkCloud Workloads

What they do Contain threats MDR
Market Mid-MarketEnterprise
Price Quote-based, private-offer signals

You still own Connecting and maintaining agreed endpoint, network, cloud, identity, SIEM and OT telemetry sources

Pondurance

Outsourced SOC coverage with managed SIEM, MDR, threat hunting, triage and scoped containment across existing tools

EndpointsNetworkIdentity & Access

What they do Run the SOC SOCaaS
Market Mid-MarketSMB
Price Quote-based, scoped MDR/SOC quote

You still own Approving response authority, escalation contacts and any actions that touch production systems

SecurityHQ Managed SOC

24/7 managed SOC coverage with monitoring, triage, investigation, threat hunting, containment playbooks, reporting, SHQ Response collaboration and optional managed protection or risk services

EndpointsNetworkCloud Workloads

What they do Run the SOC SOCaaS
Market Mid-MarketEnterprise
Price G-Cloud examples from £30,664.70 to £297,154 per year*

You still own Keeping the agreed log sources, cloud accounts, endpoint agents and business context current

Verizon Managed SIEM

24/7 SOC monitoring, SIEM alert investigation, incident classification and escalation for a SIEM the buyer already owns

NetworkCloud WorkloadsIdentity & Access

What they do Investigate and advise MSSP
Market EnterpriseMid-Market
Price Quote-based, per SIEM serviced device

You still own Owning or hosting the SIEM instance and the underlying log sources

How to use this list

Use it when

  • Use this list when you know the service label, but still need to compare the operational scope behind it.

Do not assume

  • The label is not enough. Two providers can both sell MDR while handling alert triage, containment, tooling, and reporting very differently.

Ask before shortlisting

  1. Compare the actual work performed, not only the service label.
  2. Check whether the provider uses your existing tools or requires its own platform.
  3. Confirm how pricing changes with endpoints, users, log volume, and response scope.
Category background

Managed Security Service Providers (MSSPs) are the foundational layer of the outsourced cybersecurity market. These providers operate dedicated Security Operations Centers staffed by trained analysts who monitor, detect, and escalate security events around the clock. For organizations that cannot justify the significant investment of building and staffing their own SOC, MSSPs offer a proven, cost-effective path to continuous security monitoring.

The Role of an MSSP

MSSPs handle the day-to-day operational burden of security monitoring. Core services typically include log management and SIEM monitoring, firewall and IDS/IPS management, vulnerability scanning, and compliance reporting. Many MSSPs have expanded their offerings over the years to include threat intelligence, incident response retainers, and endpoint protection management, blurring the traditional lines between MSSP and MDR services.

Evaluating MSSP Providers

When comparing MSSPs, the most important factors to weigh are breadth of service coverage, depth of analyst expertise, technology stack flexibility, and track record with organizations in your industry. Pay close attention to how the provider handles escalation — specifically, whether they simply forward alerts or provide contextual analysis and recommended actions. The best MSSPs reduce alert fatigue by triaging and enriching events before they reach your team.

The MSSP market continues to evolve rapidly. Leading providers are investing heavily in automation, AI-assisted triage, and platform consolidation. Many are also adding active response capabilities that were once exclusive to MDR providers. When selecting an MSSP in 2026, look for providers that combine mature operational processes with modern technology and transparent SLAs.

Questions

What is an MSSP?
A Managed Security Service Provider (MSSP) is a company that delivers outsourced security monitoring and management services. MSSPs typically operate 24/7 Security Operations Centers (SOCs) that monitor firewalls, intrusion detection systems, SIEM platforms, and other security infrastructure on behalf of their clients.
How much do MSSP services cost?
MSSP pricing varies widely based on scope, organization size, and service tier. Small businesses may pay $2,000-$5,000 per month, mid-market companies $5,000-$25,000, and enterprise organizations $25,000-$100,000+. Pricing models include per-device, per-user, per-log-source, or flat-fee arrangements.
When should I choose an MSSP over building an in-house SOC?
An MSSP is typically the better choice when your organization lacks the budget for a full in-house security team (which can cost $1M+ annually), needs 24/7 coverage that a small team cannot sustain, or requires rapid deployment of security monitoring capabilities rather than a multi-month build-out.