The MDR That Sees It All

Complete Signal Coverage Delivers Unmatched Visibility Across IT and OT Environments

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Why Organizations Trust Critical Start

Our customers consistently rate Critical Start as a leader in MDR services. Here’s what they have to say:

“Fantastic Partner Exceeds Previous Service Provider Expectations”

Company Size: 500M – 1B USD, Industry: Manufacturing

“Critical Start – A Great Addition to Your Security Team”

Company Size: Gov’t/PS/ED <5,000 Employees, Industry: Education

“Critical Start Managed Detection is the best.”

Company Size: <50M USD, Industry: Healthcare and Biotech

    Complete Signal Coverage: No Blind Spots, No Missed Threats

    Critical Start MDR provides unmatched visibility across IT and OT environments, helping organizations eliminate blind spots and secure their unmonitored infrastructure. 



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    Comprehensive Asset Inventory

    Discover and monitor hidden and unmanaged assets through normalized asset inventories across all security data sources.

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    Endpoint Coverage Gaps

    Proactively address critical endpoint and vulnerability scanning gaps to reduce exposure.

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    SIEM Health Monitoring

    Monitor detection coverage and log ingestion failures to ensure SOC signal assurance and full coverage of unmonitored infrastructure.


    Human-Driven Expertise: Always On, Always Effective

    Our U.S.-based Security Operations Center (SOC), Cyber Research Unit, and Cyber Incident Response Team provide expert-led investigation and true response mitigation 24x7x365.



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    Expert Analysis

    Analysts trained with over 300 hours of education and a 90% retention rate deliver deep insights and identify nuanced threats that automation misses.

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    Integrated Threat Intelligence

    Our Cyber Research Unit gathers actionable insights from diverse sources to combat evolving threats effectively.

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    Continuous Improvement

    Regular Cyber Risk Reviews ensure optimal tool performance and advance security goals.


    Proactive Risk Mitigation: Staying Ahead of Threats

    Critical Start’s proactive approach ensures risks are identified and mitigated before they impact your organization.



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    Identify and Mitigate Risks

    Detect and address vulnerabilities with preemptive security responses and preventative safeguard recommendations.

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    Comprehensive Threat Coverage

    TDIR across IT and OT environments, aligned with MITRE ATT&CK® mitigations.

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    Asset Criticality Ratings

    Prioritize alerts and remediation efforts based on business impact and asset importance.


    Business Context-Aware Solutions for Every Organization

    Critical Start MDR is designed to meet the unique needs of your organization, ensuring seamless integration with your existing tools and infrastructure.



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    Technology Agnostic

    Integrates effortlessly with multi-vendor environments and transitioning infrastructures.

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    Rules of Engagement (ROE) Customization

    Tailored strategies align with your unique processes, compliance requirements, and priorities.

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    MOBILESOC® Threat Containment

    Rapidly isolate hosts or remove malicious emails with containment capabilities accessible from anywhere.


    Measurable Risk Reduction and Transparent Operations

    Partner with Critical Start to secure your environment with guaranteed performance and complete visibility into every action.



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    • Contractual SLAs: Industry-leading SLAs guarantee 10-minute critical alert notifications and <60-minute median time to resolution.
    • Eliminating Blind Spots: Every alert actioned across multi-provider EDR, XDR, and SIEM platforms.
    • Real-Time Transparency via CORR™ Platform: Gain complete visibility into our analysts’ actions and investigations, ensuring accountability and clarity.
    • Two-Person Approval Process: Ensures thorough investigation and consistent response quality.


    Contact an Expert Today
    Critical Start delivers the MDR solution you need to protect your organization and advance your security goals.