15 Best Managed Detection and Response Companies (2026)

Gilzor approaches security through software engineering, application assessment, QA, architecture, and ongoing product maintenance rather than operating as a conventional MDR vendor. Its work includes secure application development, technical audits, security-focused testing, troubleshooting, infrastructure work, and post-launch support. The company has also published security-focused service material covering website and application protection.

This model is most relevant when detection or security findings need to be followed by changes to application code, architecture, deployment, or infrastructure. Companies requiring a dedicated 24/7 SOC would generally combine this engineering capability with specialized MDR technology or a managed security provider.

CrowdStrike provides a dedicated MDR service through Falcon Complete. The offering combines the Falcon platform with continuous monitoring, investigation, proactive threat hunting, containment, and managed remediation performed by CrowdStrike security specialists. Coverage can extend across endpoints, identities, cloud workloads, SaaS applications, and third-party telemetry integrated through its security platform.

Falcon Complete is designed for organizations that want an external team to take responsibility for more than alert forwarding. CrowdStrike explicitly includes 24/7 expert oversight and response actions intended to contain and remediate confirmed threats.

OSKI Solutions combines managed IT operations with cybersecurity and compliance engineering. Its security offering includes SIEM technologies such as Microsoft Sentinel, AWS GuardDuty, and Elastic SIEM, with real-time threat monitoring, centralized log correlation, anomaly alerts, vulnerability testing, identity controls, and incident-response-oriented logging. The company also advertises 24/7 real-time monitoring within its security and compliance work.

Its managed IT service adds proactive monitoring, alerting, security patching, on-call incident response, cloud operations, and ongoing application maintenance. This makes OSKI more relevant to organizations that want security monitoring connected directly with application, cloud, and infrastructure remediation rather than an isolated SOC service.

Arctic Wolf provides a dedicated Managed Detection and Response service built around continuous security operations. Its MDR offering monitors networks, endpoints, cloud environments, and supported security integrations on a 24/7 basis. Collected telemetry is enriched with threat intelligence and other contextual data before suspicious activity is investigated by Arctic Wolf's security operations team.

Active Response capabilities allow the provider to take containment actions across supported endpoint, identity, email, network, and cloud technologies. Customers also receive a Concierge Security Team that provides ongoing context and security guidance.

A-listware offers managed IT and cybersecurity services alongside software development and infrastructure work. Its managed security capabilities include vulnerability and security audits, penetration testing, security program assessment, infrastructure protection, cloud management, application support, and security-focused operational work.

The company's cybersecurity offering has also been described around threat monitoring, incident response, security audits, compliance management, and Cyber Security as a Service. This places A-listware closer to a managed security model than a development-only provider, although organizations seeking a traditional MDR engagement should confirm the required SOC coverage, telemetry integrations, and response scope during procurement.

Sophos operates a dedicated Managed Detection and Response service combining 24/7 security analysts, threat hunters, incident responders, detection engineers, threat researchers, automation, and AI-assisted security operations. The service is vendor-agnostic and can integrate data from hundreds of supported security and IT tools.

Its MDR team investigates alerts, conducts proactive threat hunting, and can contain and remove confirmed threats. Sophos also supports different service and response models, making the offering applicable to organizations that want either a heavily outsourced security operation or support for an existing internal security team.

SentinelOne provides 24/7 managed detection and response through Wayfinder MDR. Security analysts continuously monitor customer environments, investigate alerts, perform threat hunting, and respond to confirmed attacks. Coverage can include endpoints, cloud workloads, identity systems, and supported third-party integrations.

The service uses SentinelOne's Singularity platform together with security analysts, threat intelligence, and AI-assisted investigation. Response actions can include killing malicious processes, isolating endpoints, and rolling back unauthorized changes according to the customer's configured response policy.

Net-devs is an enterprise software engineering company rather than a dedicated MDR provider. Its work covers enterprise application development, cloud and platform engineering, infrastructure-as-code, testing, observability, deployment, and continuing software evolution. Security and correctness are incorporated into its engineering and QA processes.

The company is relevant to detection and response programs when security teams need engineering support to implement logging, improve application architecture, harden cloud environments, correct vulnerabilities, or remediate weaknesses identified by an MDR platform. Its cloud work spans Azure, AWS, and Google Cloud.

Palo Alto Networks provides Unit 42 Managed Detection and Response using Cortex XDR. Unit 42 analysts work with security telemetry from endpoints, networks, cloud systems, and identity sources, applying threat intelligence, behavioral indicators, analytics, investigation, and response capabilities to identify attacks across connected environments.

This approach is particularly relevant to organizations already invested in Cortex XDR or other Palo Alto Networks security technologies. The MDR service connects the company's security platform with Unit 42's threat intelligence and incident-response expertise.

SoftPro is a Warsaw-based custom software, cloud, and AI engineering company. Its service portfolio focuses on software development, Microsoft technologies, Azure, cloud projects, modernization, migration, and continuing maintenance rather than a dedicated managed SOC. The company provides ongoing technical support for the systems it develops and works with cloud environments where operational monitoring and security controls form part of application management.

For MDR-related projects, SoftPro is more applicable as an implementation and remediation partner. Internal security teams or specialist MDR providers can identify issues, while SoftPro's engineers address application, integration, cloud, or software changes required to reduce exposure.

21century.tech is an AI-native software studio focused on rapid production software development. Senior engineers handle architecture, security judgment, code review, QA, and production ownership while AI tools assist with code generation, testing, documentation, and refactoring.

The company does not present itself as a dedicated MDR or SOC provider. Its role in a security program is more likely to involve application remediation, refactoring, secure implementation, CI/CD, or engineering changes following a security review. This can make it useful when vulnerabilities or operational weaknesses require development work rather than continued alert monitoring.

Red Canary focuses on operating as an extension of internal security teams rather than simply forwarding alerts. Its MDR service provides 24x7 security operations, behavioral detection, threat hunting, investigation, and response across endpoints, identities, cloud environments, and other supported data sources.

The provider is particularly relevant to organizations that already have capable security tooling but need additional detection engineering and analyst capacity. Red Canary emphasizes visibility into how detections are generated and investigated, which can make the service useful for mature security teams that want an MDR partner without turning their operations into a black box.

Expel delivers MDR across cloud, endpoint, identity, network, SaaS, email, and other attack surfaces. Its service is designed to connect with existing security technology rather than requiring customers to rebuild their stack around a single vendor platform. Current coverage includes more than 160 technology integrations, including security and cloud products from major vendors.

The service combines automation with 24/7 analyst involvement and gives customers visibility into investigations through Expel Workbench. Direct collaboration through tools such as Slack and Microsoft Teams can also make the operating model attractive to internal security teams that want close interaction with their MDR provider.

eSentire provides MDR backed by a 24/7 security operations center and analysts who investigate and contain confirmed threats on the customer's behalf. Its MDR model draws on multiple security signals, including endpoint, network, log, cloud, and identity data, rather than limiting detection to one control layer.

The company combines automated detection and response with human oversight, which can suit businesses that want automation without removing analyst accountability from consequential response decisions. Its broader cybersecurity portfolio also includes related security services that can complement ongoing managed detection work.

Rapid7 combines managed detection and response with exposure and vulnerability context. Its MDR service brings together endpoint, cloud, identity, email, network, and third-party telemetry while feeding vulnerability and asset risk information into investigations. That context can help analysts distinguish higher-risk activity from lower-priority security noise.

Rapid7 analysts support investigation, containment, remediation, threat hunting, and broader security guidance. The approach can be useful for organizations that already use exposure management or vulnerability data and want those findings connected directly to day-to-day security operations rather than managed in a separate process.