Three Ways to Buy the Same Protection
Endpoint security licensing looks like a straight per-device comparison until you realise the three leading platforms price entirely differently. CrowdStrike sells Falcon as a base agent plus a long menu of priced modules; SentinelOne bundles more EDR capability into lower Singularity tiers; and Microsoft Defender for Endpoint is functionally free to anyone already holding Microsoft 365 E5. CrowdStrike Falcon Pro lists at about $100 per device per year and Falcon Enterprise at roughly $185, while SentinelOne Singularity Control runs about $70 and Complete around $160–$180. The two converge within a few dollars at the enterprise tier — but neither headline rate means much until you know what you already own elsewhere in the cloud security stack. After discounting, the per-device numbers from CrowdStrike and SentinelOne tend to land within a tight band, because both discount aggressively to win competitive deals; the differentiator is rarely the agent price and almost always the modules, the retention, and whether the capability duplicates something the Microsoft estate already funds.
CrowdStrike and SentinelOne Tiers Compared
The structural difference is where EDR sits in the line-up. SentinelOne includes detection and response capability at lower tiers that CrowdStrike reserves for Enterprise, so a like-for-like comparison has to map features, not tier names. The table below sets the realistic enterprise tiers side by side.
| Tier | CrowdStrike Falcon | SentinelOne Singularity | Microsoft Defender |
|---|---|---|---|
| Entry / NGAV | Go ~$60/device/yr | Core ~$45/device/yr | P1 $2.50/user/mo (in E3) |
| EDR | Pro ~$100/device/yr | Control ~$70/device/yr | P2 $5.20/user/mo (in E5) |
| Full XDR | Enterprise ~$185/device/yr | Complete ~$160–180/device/yr | Bundled in E5 |
| Managed (MDR) | Complete (custom) | Commercial/Enterprise (custom) | Defender Experts (add-on) |
For a 10,000-endpoint enterprise already on Microsoft 365 E5, Defender for Endpoint Plan 2 costs zero incremental, while CrowdStrike Falcon Enterprise lists around $1.9 million a year. The third-party case must be argued on capability and threat depth — never on price against a bundle you already hold.
The Defender for Endpoint Anchor
For Microsoft-centric enterprises, the endpoint decision was often made the day they bought E5. Defender for Endpoint Plan 1 ships with Microsoft 365 E3 and Plan 2 — full EDR, automated investigation and response, and threat analytics — ships with E5 and E5 Security, at $5.20 per user per month standalone but no incremental cost inside the suite. The real question for most buyers is not which plan to license but whether the Plan 2 capability they already own is switched on and staffed. Before signing a third-party EDR, map what Defender already enforces; the owned-capability discipline here is identical to the one that governs the identity provider and CASB decisions, and it sits inside the broader Microsoft commercial relationship.
Where the Contract Inflates
The headline per-device tier is the start of an endpoint bill, not the end. Identity protection, cloud workload protection, exposure management and — most expensively — extended log retention are quoted as separate add-ons that are individually modest but collectively inflate the base contract. Extended data retention is rarely bundled and almost always requires a separate quote, and it is where CrowdStrike and SentinelOne deals quietly grow after signing. Insist on a fully itemised quote that separates platform licensing, add-on modules, MDR services and professional services, because a bundled quote obscures the individual lines and shrinks your negotiation surface. This is the same module-creep discipline we apply to zero trust bundles and set out in our cloud contract framework.
Managed Detection: Capability or Crutch?
Both vendors push managed detection and response — CrowdStrike Falcon Complete, SentinelOne's Commercial and Enterprise tiers — as the premium destination, and MDR can roughly double the per-endpoint cost. MDR is genuinely valuable where an enterprise lacks a 24/7 security operations capability, but it is frequently sold to organisations that already run a SOC or already pay for managed services through their SIEM platform. Decide the staffing question first: if you have analysts watching the console, you are paying twice for the same coverage. If you do not, price MDR against the cost of building the capability, and negotiate it as a separable line you can drop at renewal rather than a permanent attach baked into the platform commitment. A useful test: if MDR doubles the per-endpoint rate, the three-year MDR premium on a 10,000-endpoint estate can exceed $1 million, which is enough to fund a meaningful slice of an in-house detection-and-response function — so the build-versus-buy decision deserves a real business case, not a default attach on the vendor's recommendation.
Beyond the Endpoint: Platform Expansion
Neither CrowdStrike nor SentinelOne wants to stay an endpoint vendor, and the contract you sign for EDR is increasingly the foot in the door for a much larger platform. CrowdStrike now sells cloud workload protection, identity threat detection, exposure management, next-gen SIEM and data protection as Falcon modules; SentinelOne pushes Singularity for identity, cloud and its Purple AI analytics layer. Each module is priced per endpoint, per identity or per ingested gigabyte, and the bundle economics are deliberately attractive — a 15–25% platform discount that only materialises if you commit to several modules at once.
That bundle discount is a trap when it commits you to capability you already own elsewhere. Identity threat detection overlaps with what an identity provider and Entra already enforce; the SIEM module competes with your existing SIEM platform and its ingest-based pricing; cloud workload protection overlaps with native hyperscaler tooling and your vulnerability management platform. The most expensive endpoint mistake in 2026 is letting an EDR renewal pull in three adjacent modules on a multi-year commitment because the bundle looked cheap per unit. Price each module against the incumbent it would replace, and refuse to commit term on a module whose owner already sits in another contract. The platform play only saves money when it genuinely consolidates spend you would otherwise duplicate — and it must clear the consolidation test set out in our cloud contract framework, not just a per-unit comparison.
Negotiation Levers That Work
The first lever is the competitive process. Running CrowdStrike, SentinelOne and Microsoft Defender as parallel quotes — and credibly piloting the alternative — consistently produces the largest reductions, with buyers reporting 15–40% off list when they make the move real rather than rhetorical. The second lever is the multi-year commitment: enterprise buyers achieve 10–20% off on volume alone, and three-year terms unlock 25–35% from both CrowdStrike and SentinelOne. Commit term only on the base platform and keep premium modules and MDR on annual flexibility. The third lever is owned-capability mapping — for any Microsoft 365 E5 estate, Defender for Endpoint P2 is a credible substitute that resets a third-party quote faster than any volume argument, the same logic that runs across the vulnerability management and DLP layers. To benchmark your endpoint security licensing against current market rates, request a confidential briefing or read our price benchmarking research.