List of the Top 5 Managed Detection and Response (MDR) Services for Microsoft Sentinel in 2026

Daylight merges state-of-the-art agentic AI with exceptional human expertise to provide a sophisticated managed detection and response service that goes beyond simple alerts, aiming to “take command” of your cybersecurity framework. It guarantees thorough surveillance of your entire ecosystem, ensuring there are no blind spots, while offering protection that is sensitive to context and evolves in response to your systems and past incidents, including interactions on platforms such as Slack. This service is recognized for its remarkably low false positive rates, the fastest detection and response times in the sector, and smooth integration with your current IT and security infrastructure, supporting an endless array of platforms and connections while offering actionable insights via AI-enhanced dashboards without excessive distractions. By choosing Daylight, you gain access to genuine all-encompassing threat detection and response without requiring escalations, coupled with continuous expert support, customized response workflows, and extensive visibility across your environment, leading to measurable improvements in analyst productivity and response times, all aimed at shifting your security operations from a reactive to a proactive command strategy. This comprehensive strategy not only empowers your security team but also significantly strengthens your defenses against the ever-evolving threats present in the digital realm, ensuring that your organization remains resilient and prepared for future challenges.

UnderDefense is an agentic AI SOC, compliance, and MDR platform built to help security teams automate alert investigation, reduce noise, and respond to real threats faster. The platform uses AI agents to investigate every alert, correlate evidence across systems, enrich context, verify findings, and deliver structured verdicts and recommended actions. MAXI is designed to reduce false positives, accelerate triage, and make existing security investments more productive without forcing teams into a proprietary stack. The platform works with tools such as Splunk, Microsoft Sentinel, Google Chronicle, IBM QRadar, Elastic, CrowdStrike, SentinelOne, Palo Alto, AWS, GCP, Azure, Okta, Slack, Teams, Jira, and more than 100 other integrations. Its AI SOC layer provides multi-system correlation, ChatOps verification, Detection Logic as Code, auditable investigation steps, and fast alert analysis. Its compliance layer supports SOC 2, ISO 27001, HIPAA, and PCI DSS through automated evidence collection, questionnaire automation, posture monitoring, and executive-ready reporting. Its expert incident response and MDR layer adds 24/7 human specialists, containment support, co-managed or fully managed security operations, and rapid response workflows. UnderDefense also provides managed detection and response, managed SIEM and EDR, managed SOC, cloud security services, penetration testing, compliance services, external attack surface monitoring, ransomware protection, and incident response automation. The platform is built around the idea that AI should collect and investigate while human teams make final decisions. It supports on-premises and cloud environments, keeps logs in the customer’s data lake, and emphasizes transparent investigation rather than opaque automation.

SecurityHQ operates as a worldwide Managed Security Service Provider (MSSP), offering continuous threat detection and response around the clock. With access to a dedicated team of analysts available every hour of every day throughout the year, clients benefit from personalized guidance and comprehensive insights that provide reassurance, all through our Global Security Operation Centres. Leverage our recognized security solutions, expertise, personnel, and systematic approaches to enhance business operations while minimizing risks and lowering overall security expenditures. Additionally, this commitment to excellence ensures that your security needs are met proactively and effectively.

WithSecure Elements Infinite provides a comprehensive suite of security tools and capabilities as a continuous Managed Detection and Response (MDR) service that includes responding 24/7 to cyber security incidents and improving customers security posture through Continuous Threat Exposure Management (CTEM). WithSecure's Detection and Response Team (DRT) swiftly addresses cyber threats to your organization within minutes. WithSecure Elements Infinite seamlessly integrates with your cyber security team, providing threat hunting expertise, helping your team learn and grow, and continuously enhancing your security measures. Elements Infinite’s 24/7 First Response service contains and remediates cyber security incidents before they have a chance to impact the business. Our proven First Response methodology enables the <1% of incidents requiring specialist support to be smoothly escalated to our incident response team. Elements Infinite’s proprietary Endpoint Detection & Response (EDR) agent and log collectors feed data into our XDR detection platform, offering exceptional visibility into user, endpoint, cloud, and network activities. The primary service components cover the environments external attack surface(s), identity management systems (Entra ID), physical endpoints, corporate networks and cloud environments (AWS, Azure). WithSecure is a premier European cyber security company dedicated to helping our customers achieve compliance and effectiveness the European way. As a trusted partner in cyber security, our extensive real-world experience and expertise, honed over 35 years, safeguard critical businesses and millions of endpoints globally. We provide clients with operational efficiency and resilience, empowering them to reach their objectives.

We have improved our Managed Detection and Response (MDR) service to reduce alert fatigue, allowing your business to keep progressing smoothly. Tailored to meet the needs of modern enterprises, our solution incorporates a cloud-based Security Information and Event Management (SIEM) platform known as Microsoft Sentinel. Our Security Operations Center (SOC) analysts employ advanced AI-driven detection tools to identify threats quickly, evaluate their authenticity, and prioritize those that represent the highest risk. Our dedication to providing an outstanding customer experience drives us to develop strategies that efficiently and accurately mitigate threats, culminating in what we call MDR+. This cutting-edge MDR+ solution integrates expert human intervention, innovative threat detection techniques, and advanced technology, enabling you to act sooner in the threat lifecycle. Utilizing the extensive capabilities of Azure Sentinel, we achieve thorough data ingestion and detection processes. Additionally, our use cases benefit from well-defined security playbooks that can autonomously execute actions or support security analysts in determining subsequent steps, ensuring a forward-thinking approach to threat management. This robust framework not only enhances operational efficiency but also strengthens your organization's overall security resilience, providing peace of mind in an increasingly complex threat landscape.