SOC providers for ISO 27001 requirements

Separate the provider’s certification scope from the monitoring and evidence it will supply for your own program.

Arctic Wolf Aurora MDR

Arctic Wolf's Aurora MDR investigates alerts and contains threats through configured integrations, supported by a named Concierge Security Team.

You still own Connected tools, response permissions and remediation outside configured containment

What they do Contain threats MDR
Price $44,000/year · up to 100 users

eSentire

eSentire MDR investigates and contains threats through supported tools under agreed response rules.

You still own EDR licensing, tool access, response permissions and recovery outside agreed incident support

What they do Contain threats MDR
Price $17/user/mo + $2,500/year

Field Effect MDR

Field Effect supplies an MDR platform and SOC that investigate threats and contain them under buyer-selected response policies.

You still own Agent deployment, response policies, recovery and incident response beyond MDR scope

What they do Contain threats MDR
Price $5–$25/user/mo range

Microsoft analysts investigate Defender incidents and execute permitted containment in MDR Plan 1.

You still own Defender licensing, deployment, access, exclusions and out-of-scope remediation

What they do Contain threats MDR

Zscaler MDR (Red Canary)

Zscaler MDR, formerly Red Canary, investigates connected alerts and executes permitted endpoint, identity and network containment.

You still own Underlying security tools, response approvals and remediation outside the contracted scope

What they do Contain threats MDR
Price $120/endpoint/year · AWS Marketplace

Bridewell's fully outsourced SOC runs daily monitoring, investigation and detection tuning, then leads response within agreed playbooks.

You still own Telemetry, tenant permissions, response approvals, business remediation and recovery

What they do Run the SOC SOCaaS
Price G-Cloud: from £5.25/user/mo + £3.04/server/mo
About this list

If a provider cites ISO 27001 certification, request the current certificate and scope. Match the named organization, services and locations to the engagement you are considering.

Separately agree which logs, investigation records and service reports support your own control activities. Monitoring alone does not transfer ownership of your information security management program.

Questions

What should we check in a certificate?
Check its validity, named legal entity and scope against the actual service and delivery locations. Ask about exclusions relevant to your deployment.
What reporting should the service provide?
Agree reports and evidence for the controls you assign to the provider, including access, retention, incident records and the process for audit requests.