We Handle The Threats.
You Focus On What Matters.
Critical Start delivers 24x7 AI-accelerated, human-validated detection, investigation and response across IT and OT to cut through noise, investigate real threats, and take trusted, SLA-backed action.





Effective MDR Requires Proactive + Reactive Measures.
CRITICALSTART® delivers comprehensive MDR with complete signal coverage, expert-driven response, and tailored solutions to minimize breaches and maximize security efficiency.
Your Security, Fully Visible.
CRITICALSTART® delivers comprehensive MDR with complete signal coverage, expert-driven response, and tailored solutions to minimize breaches and maximize security efficiency.

Integrations
Get more value from your tools as Critical Start analyzes alerts and telemetry across multiple products to stop threats before impact.
Don’t Just Take Our Word for It.
Our customers say it best. The world’s most renowned global enterprises, across industries like finance, healthcare, and manufacturing, trust CRITICALSTART® to deliver unmatched Managed Detection and Response (MDR). See why their experiences set us apart and how our solutions consistently outperform the competition.
Trusted Behavior Registry®(TBR®)
The TBR is a one-of-a-kind technology with an approach focused on identifying known good behavior first so security analysts can move quickly to investigate and respond to real threats.
Critical Start
MOBILESOC®
Critical Start’s Android and iOS mobile app enables security teams to increase productivity, streamline communication, and shrink attacker dwell time by allowing them to investigate, contain, and remediate alerts instantly from anywhere, at any time.
Resolve all Threat Alerts
Critical Start’s Android and iOS mobile app enables security teams to increase productivity, streamline communication, and shrink attacker dwell time by allowing them to investigate, contain, and remediate alerts instantly from anywhere, at any time.

Contact a Critical Start Expert Today.
See how Critical Start can transform your security operations with our comprehensive suite of solutions.
Eliminate Blind Spots: Achieve comprehensive visibility and control over your security landscape, ensuring no threat goes unnoticed.
Rapid Threat Resolution: Benefit from swift and effective threat mitigation, driven by 24x7x365 expert investigations and backed by contractual SLAs.
Seamless Operational Adaptation: Experience smooth integration across IT and OT environments, ensuring consistent protection against diverse threats.
Proactive Risk Mitigation: Stay ahead of emerging threats with proactive measures that address risks before they can impact your operations.
Enhanced Security Maturity: Continuously improve your security posture through actionable insights and benchmarking against peer organizations.