Critical Start
MDR provider built around its Trusted Behavior Registry and MOBILESOC app, delivering managed detection across multiple EDR, XDR, and SIEM platforms.
CompanyManaged Security Service ProvidersCloud
Pricing: Custom (contact sales)
Reviewed by the Cyber Vendor Guide editorial team against the public sources cited below · Last reviewed June 2026 · How we review listings
What is Critical Start?
Founded in 2012 by Rob Davis to address alert fatigue, Critical Start's Trusted Behavior Registry (TBR) auto-resolves known-good behaviours at scale so analysts focus on true positives. The MOBILESOC iOS/Android app lets customers triage, escalate, and contain incidents from a phone. The firm runs MDR across multiple third-party EDR/XDR/SIEM stacks rather than shipping its own endpoint agent.
Best for: Mid-market and enterprise teams that already own EDR/XDR and want managed response with strong noise reduction
Pros
- Trusted Behavior Registry materially reduces alert noise at scale
- MOBILESOC is one of the more mature mobile SOC apps in the MDR market
- Multi-EDR / multi-XDR coverage gives customers stack optionality
- Strong transparency posture; customers see every alert decision and SLA in the portal
Things to check
- Smaller scale than Arctic Wolf, Sophos/Secureworks, or eSentire
- Service quality depends on customers having a supported EDR/XDR already licensed
- Limited public pricing
Reported in public reviews and vendor documentation. See sources below.
Key Features
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Sources & references
Where the information on this listing comes from. Always verify pricing and capabilities against the vendor before a purchasing decision.
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Key facts
- Pricing
- Custom (contact sales)
- Model
- Subscription per integrated surface
- Founded
- 2012
- Cloud
- Yes
- Self-hosted
- No
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Certifications
SOC 2 Type II