BT Managed Sentinel vs Verizon Managed SIEM

BT Managed Sentinel suits teams standardizing on Microsoft Sentinel. Verizon Managed SIEM also names Splunk and QRadar, making it relevant when you want to retain another supported SIEM. Both share detection-content work with your team and leave containment and recovery with you. Compare the included change allowances and engineering work, then price the platform and service separately.

Updated 3 Oct 2026 · Based on public service documentation.

BT Managed Sentinel if

Your target platform is Microsoft Sentinel in your Azure tenant.

Verizon Managed SIEM if

You want to retain a supported Splunk, QRadar or Sentinel instance.

Consider neither if

You need provider-executed containment included in the normal service.

Questions to ask both

Which log sources and detections will analysts investigate, and who fixes gaps?
What happens after escalation when our response contact is unavailable?
Itemize migration, setup, platform usage, recurring monitoring and custom engineering.

At a glance

BT Managed Sentinel MSSP · Co-manage the SOC · Works with your stack Verizon Managed SIEM Co-Managed SOC · Co-manage the SOC · Works with your stack

Platform fit

Microsoft Sentinel in your Azure tenant. Existing workspaces need a migration assessment.

Customer SIEM on premises or with a third-party host. The service page names Splunk, QRadar and Sentinel.

After an alert

Foundation and Foundation Plus investigate and recommend action alongside shared Sentinel detection operation. Your team responds.

Analysts investigate, classify risk and escalate findings for your team to act on.

Scope boundary

Foundation and Foundation Plus are Managed Sentinel tiers. Premium XDR adds separately agreed remediation and permissions.

Containment and repair need your team or separately contracted response. Custom SIEM engineering may also cost extra.

Detection work

BT implements requested detection-content changes within tier allowances. Your team selects changes and acts on review findings.

Verizon implements agreed detection-content changes after customer impact validation. Custom engineering can cost extra. Non-real-time alerts are outside the notification SLA.

Cost comparison

Reconcile the procurement listing with its linked price card. Obtain separate setup, monthly ingestion-band and Microsoft costs.

The guide describes setup and monthly fees per SIEM instance. Price extra instances and engineering explicitly.

Full side-by-side specs

BT Managed Sentinel MSSP · Co-manage the SOC · Works with your stack Verizon Managed SIEM Co-Managed SOC · Co-manage the SOC · Works with your stack

Decision fit

Service model

MSSP

Co-managed SOC, MSSP

Provider involvement

Co-manage the SOC

Best for

Enterprise, Mid-Market

After an alert

Response level

Co-manage the SOC

Response detail

BT implements customer-requested Sentinel content changes within tier allowances and investigates incidents. Buyers retain content decisions, source responsibilities and incident response in Foundation and Foundation Plus. Premium XDR remediation has separate permissions.

The service combines investigation with continuing SIEM detection-content implementation and joint impact validation. This supports co-management of detection operations. Verizon recommends incident actions; containment, repair and wider recovery remain buyer-owned or separately contracted.

Stack and coverage

Platform model

Works with your stack

SIEM

Microsoft Sentinel

Splunk, IBM QRadar, Microsoft Sentinel

Cloud

Azure

Service documentation

Use the response-permissions guide to check the proposed operating agreement.