Best MDR Providers in 2026: Top 11 Compared

Managed Detection and Response (MDR) has become the default way for organizations to get 24/7 threat detection and response without building their own security operations center. But "MDR" now covers everything from a lightweight endpoint add-on to a fully outsourced SOC, and providers vary enormously in what they actually do when a threat is found. This guide compares the leading MDR providers in 2026, what each is best for, and how to choose between them.

We publish this as an MDR provider ourselves, so we have listed SubRosa first and been explicit about where we fit and where we do not. Every other provider here is judged on the same criteria, because a comparison that only flatters its author is no use to a buyer.

How we compared MDR providers

The word "MDR" hides large differences between vendors. We weighed each provider on the things that actually change the outcome of an incident:

• Response, not just detection. The single biggest difference between providers. Some genuinely contain and remediate threats on your behalf; others raise a high-quality alert and hand it back to you. Read the contract for the word "respond".
• Analyst quality and real 24/7 coverage. Attackers work nights and weekends. Coverage that is genuinely round-the-clock, staffed by experienced analysts rather than a tier-one queue, is what shortens dwell time.
• Telemetry breadth. Endpoint-only MDR misses identity, email and cloud attacks. The strongest providers correlate signals across all of them.
• Works with your tools, or locks you in. Some MDR requires you to adopt the provider's own endpoint agent; others are technology-agnostic and sit on top of what you already run.
• Transparency. Whether you can see what the SOC is doing in real time, or whether it is a black box that surfaces once a month in a report.
• Fit for your size. The provider that suits a 50,000-endpoint bank is rarely the one that suits a 300-person SaaS company, and the reverse is just as true.

The best MDR providers in 2026, compared

Provider	Best for	Key differentiator
SubRosa	Mid-market and growing organizations	Senior, human-led response on top of your existing tools
CrowdStrike Falcon Complete	Enterprises on CrowdStrike endpoint	Mature, endpoint-led, global threat intelligence
Arctic Wolf	Teams wanting a named security team	Concierge model, technology-agnostic
Rapid7 MDR	Mid-to-large organizations	Built on InsightIDR, unlimited incident response
Sophos MDR	Organizations already on Sophos	Large customer base, strong endpoint integration
Expel	Cloud-first organizations	Transparency and integrations-first, no required agent
Huntress	SMBs and MSPs	Lightweight, high user ratings, MSP-friendly
SentinelOne Vigilance	Teams on the Singularity platform	AI-driven detection with an MDR overlay
Secureworks Taegis	Enterprises wanting an open XDR	Long-established, Taegis telemetry
Palo Alto Cortex	Large Palo Alto estates	Platform-native, Unit 42 threat intelligence
Critical Start	Teams wanting contractual SLAs	Resolution SLAs and a mobile SOC app

1. SubRosa

Best for: mid-market and growing organizations that want senior, human-led detection and response, without the enterprise price tag or the black box.

SubRosa runs a 24/7 managed SOC built on more than 20 years of offensive security work. Analysts and automation work the same queue, so high-severity alerts are triaged in under ten minutes, and the team drives hands-on containment and remediation rather than handing an alert back to you. Detections are mapped to the MITRE ATT&CK framework and backed by weekly threat hunts, and the service ingests telemetry from more than 1,000 integrations, so it works with the tools you already run instead of forcing a new endpoint agent onto your estate.

What sets SubRosa apart is that the SOC runs inside the same Sable platform where your findings, risk register, vendors and compliance evidence already live, and reporting is transparent rather than a monthly black-box summary. Customers see roughly a sixfold faster time to contain and a 72% reduction in false positives, because correlation across sources removes the repetitive noise before it reaches an analyst.

Consideration: SubRosa is built for mid-market and mid-enterprise organizations. The very largest global enterprises that need a several-hundred-analyst SOC and a household brand name on the contract will find CrowdStrike or Palo Alto a closer fit to that profile.

2. CrowdStrike Falcon Complete

Best for: enterprises standardized on CrowdStrike's endpoint platform.

Falcon Complete is one of the most mature MDR offerings on the market, combining CrowdStrike's endpoint telemetry, behavioral analytics and global threat intelligence with a large and experienced analyst team. For organizations already running Falcon, it is a natural and powerful extension. The trade-offs are that its strengths are closely tied to the CrowdStrike ecosystem, and that it sits firmly at the premium end of the market on price.

3. Arctic Wolf

Best for: organizations that want a named security team and no vendor lock-in.

Arctic Wolf's Concierge Security Team model assigns you a named team that learns your environment and provides proactive security reviews, and its technology-agnostic design works across the tools you already own. It earned a 2026 Gartner Peer Insights Customers' Choice designation for MDR. It is a strong fit for mid-market and enterprise organizations that value a relationship-led model over a purely transactional one.

4. Rapid7 MDR

Best for: mid-to-large organizations that want detection and response tied to a broader security platform.

Rapid7's MDR is built on its InsightIDR detection and response platform and typically includes unlimited incident response, so a major incident does not trigger a separate bill. It suits organizations that want MDR as part of a wider Rapid7 footprint spanning vulnerability management and SIEM. Buyers outside that ecosystem should weigh how much of the value depends on adopting the surrounding platform.

5. Sophos MDR

Best for: organizations already invested in Sophos endpoint protection.

Sophos MDR has one of the largest customer bases in the market and integrates tightly with the Sophos endpoint and firewall estate, which makes it an easy addition for existing Sophos customers. It also accepts telemetry from third-party tools. As with most vendor-native MDR, the experience is strongest when the underlying environment is already built on the same vendor's products.

6. Expel

Best for: cloud-first organizations that value transparency.

Expel built its reputation on transparency, giving customers unusually clear visibility into what its SOC is doing and why. It is integrations-first, connecting to your existing security tools and cloud platforms rather than requiring its own agent, which makes it a good fit for cloud-native and SaaS-heavy environments. Organizations wanting a single vendor to supply both the tooling and the service may prefer a more platform-led provider.

7. Huntress

Best for: small and mid-sized businesses, and the MSPs that serve them.

Huntress is lightweight, straightforward to deploy, and consistently rated highly by its users, with a product and price point aimed squarely at SMBs and managed service providers. Its Managed EDR and expanding platform focus on the threats that most affect smaller organizations. Enterprises with complex, multi-cloud estates and heavy compliance requirements will typically need a broader provider.

8. SentinelOne Vigilance

Best for: teams standardized on the SentinelOne Singularity platform.

SentinelOne's Vigilance MDR overlays its autonomous, AI-driven detection on the Singularity platform, adding human analysts to triage and respond to what the technology surfaces. It is a strong option for organizations that have already chosen SentinelOne for endpoint. The value is most compelling inside that platform rather than as a standalone service on other vendors' tooling.

9. Secureworks Taegis

Best for: enterprises that want an established provider with an open XDR.

Secureworks is one of the longest-established names in managed security, and its Taegis platform delivers MDR with broad telemetry and a strong threat-intelligence heritage. It is well suited to larger organizations that value a long track record. As with any large enterprise provider, buyers should confirm the level of hands-on response included at their tier rather than assuming it.

10. Palo Alto Cortex

Best for: large organizations with a significant Palo Alto Networks footprint.

Palo Alto's Cortex-based MDR is backed by the company's substantial threat-intelligence infrastructure and its Unit 42 analysts. It is platform-native and most powerful for organizations already invested in Palo Alto Networks. Its scale and capability come at an enterprise price point, and the benefits are greatest inside the Palo Alto ecosystem.

11. Critical Start

Best for: teams that want contractual resolution SLAs.

Critical Start differentiates on contractual service levels and a trust-oriented analytics model designed to resolve every alert rather than sample them, along with a mobile SOC application that lets teams collaborate on investigations from anywhere. It appeals to organizations that want the response commitment written into the contract. Buyers should map its model to their existing tooling to confirm fit.

How to choose an MDR provider

Once you have a shortlist, four questions separate the providers that will actually reduce your risk from the ones that will simply forward you alerts:

• What happens when they find something? Ask for the specific actions the provider will take to contain a threat, and what still lands back on your team. This is where "MDR" varies most.
• Does it fit the tools and the size you actually are? A provider built for 50,000 endpoints will over-serve a 300-person company, and a lightweight SMB tool will under-serve a regulated enterprise. Match the provider to your environment, not to a brand name.
• Is the coverage genuinely 24/7, and who is on the queue? Confirm that out-of-hours coverage is staffed by experienced analysts, not a first-line queue that escalates to a human in the morning.
• Can you see what they are doing? Transparency, live reporting and a clear audit trail are what let you trust the service and prove it to auditors and insurers.

When SubRosa is the right MDR provider

If you are a mid-market or growing organization that has bought security tools but does not have the people to run them around the clock, SubRosa is built for exactly that gap. You get a senior, 24/7 SOC that contains and remediates threats rather than forwarding alerts, working on top of the tools you already own, with transparent reporting and the same platform holding your compliance evidence and risk register. You get the response capability of a large provider without the enterprise price tag or the black box, from a team that has spent two decades on the offensive side of security and knows how attackers actually operate.

The honest version of this list is that several providers here are excellent, and the right answer depends on your size, your tools and what you need done when an incident hits. For mid-market organizations that want humans who act, not just alert, SubRosa is where that comparison usually lands.