Endpoint IndexDoes a Small Business Need EDR with SIEM Integration?
Contents
- Executive summary
- What "SIEM integration" delivers in practice
- What running a SIEM costs a small business
- The three setups where integration is worth having
- Which EDR products name which SIEMs
- What the matching products cost
- Mistakes buyers make with SIEM integration
- Frequently asked questions
- Methodology and caveats
- Sources
Executive summary
Most small businesses do not need SIEM integration from their endpoint product; it earns its place only when someone already runs a SIEM (you, your MSP or a managed SOC) or a rule requires centralised logging. A SIEM (security information and event management system) collects logs from endpoints, firewalls, email and identity, and correlates them. As of 30 September 2026, 8 of the 8 EDR products in this database include SIEM integration, so it is rarely the feature that separates them.
What does separate them is which SIEM they name. An integration with Splunk is no use to a business whose MSP runs Microsoft Sentinel. And the integration is the cheap part: the SIEM bills for the data you send it and needs a person to watch it. For a small team with no one to do that, managed EDR delivers more protection for the money.
What "SIEM integration" delivers in practice
Vendors use the phrase for very different things. Before buying, find out which of these you are getting:
| Level | What moves to the SIEM | What it is good for |
|---|---|---|
| Alert forwarding | The endpoint product's own detections, often over syslog | Seeing endpoint alerts beside firewall and login alerts |
| Event streaming | Raw process, file and network events from each device | Hunting and correlating across systems; high data volume |
| Two-way connector | Alerts in, plus actions back (isolate a device from the SIEM) | A SOC that works from one console |
The data on this site records whether each vendor lists SIEM integration and which SIEMs it names on its own integration pages. It does not record which level each connector reaches, and that varies by tier. Ask the vendor for the connector documentation and read what it sends.
What running a SIEM costs a small business
The endpoint vendor's integration is usually included in the licence. The SIEM is not. Microsoft's Sentinel pricing page (checked 30 September 2026) bills pay-as-you-go "for each GB of data ingested", with commitment tiers for predictable daily volumes, and charges other Azure services such as Log Analytics and Logic Apps separately. Streaming raw endpoint events from every laptop multiplies the volume you pay for.
Then there is the watching. A SIEM raises its own alerts from correlated data, and those need an analyst. If you do not have one, you are paying twice to store alerts nobody reads.
The three setups where integration is worth having
Your MSP or managed SOC runs a SIEM
This is the common case. Ask the provider which SIEM it runs, then pick an endpoint product that names it. An MSP will also care about RMM and PSA integrations; see endpoint security for MSPs.
You are a Microsoft 365 business on Microsoft Sentinel
Microsoft Defender for Business feeds Sentinel inside Microsoft's own stack, at $36.00 per user per year. A third-party EDR product only makes sense here if it also names Sentinel and you have a reason to leave Defender.
A regulator or client requires centralised logging
New York's DFS cybersecurity regulation, 23 NYCRR 500.14, obliges Class A companies to run a system that pulls security logs and alerts into one place. The Class A definition in section 500.1(d) needs at least $20 million in revenue plus either over 2,000 employees or over $1 billion in group revenue, so most small agencies and lenders regulated by DFS fall outside this rule. Our NYDFS guide covers who is in scope.
Which EDR products name which SIEMs
| Product | SIEM integration | Named integrations |
|---|---|---|
 Microsoft Defender for Business | Included | Microsoft Sentinel |
 ThreatDown Elite | Included | Splunk Enterprise, Microsoft Sentinel, Google Chronicle |
| ThreatDown Advanced | Included | Splunk Enterprise, Microsoft Sentinel, Google Chronicle |
 SentinelOne Singularity Control | Included | Splunk, IBM Security |
 Huntress Managed EDR | Included | None named |
 Cynet | Included | IBM Security QRadar, SolarWinds SEM |
| SentinelOne Singularity Complete | Included | Splunk, IBM Security |
 WatchGuard Endpoint Security 360 | Included | AlienVault USM, Fortinet FortiSIEM, HPE ArcSight, IBM QRadar, McAfee Enterprise Security Manager, LogRhythm, SolarWinds Log & Event Manager, Splunk |
"None named" means the vendor does not list a specific SIEM on its integration pages. It may still offer syslog export or an API, which most SIEMs can ingest with some setup work.
Matched to the SIEM you run:
- Microsoft Sentinel: Microsoft Defender for Business and ThreatDown Advanced and Elite name it.
- Splunk: SentinelOne, ThreatDown and WatchGuard Endpoint Security 360 name it. SentinelOne's only other named SIEM partner is IBM Security.
- IBM QRadar: Cynet and WatchGuard Endpoint Security 360 name it. SentinelOne lists IBM Security as a SIEM partner without naming the product.
- Google Chronicle: ThreatDown is the only EDR vendor here that names it.
What the matching products cost
| Product | Per unit per month | 10 seats / yr | 25 seats / yr | 100 seats / yr |
|---|---|---|---|---|
| Microsoft Defender for Business | $3.00 /user/mo | $360.00 | $900.00 | $3,600.00 |
| ThreatDown Advanced | $6.58 /endpoint/mo | $790.00 | Via sales (online up to 20) | Via sales (online up to 20) |
| ThreatDown Elite | $8.25 /endpoint/mo | $990.00 | Via sales (online up to 20) | Via sales (online up to 20) |
| SentinelOne Singularity Complete | $15.00 /endpoint/mo | $1,799.90 | $4,499.75 | $17,999.00 |
| Huntress Managed EDR | Min 50 seats | Min 50 seats | Min 50 seats | $9,588.00 |
WatchGuard Endpoint Security 360 (formerly WatchGuard EPDR), which names more SIEMs than any other EDR product here, and Cynet, which names QRadar and SolarWinds SEM and documents generic syslog forwarding, do not publish prices. Expect a quote from a partner or the vendor.
Bitdefender GravityZone names seven SIEMs, including Sentinel, Splunk and QRadar, but its small-business tiers are prevention products. Bitdefender describes Business Security Premium as prevention "without additional detection and response capabilities", so it is not in the EDR tables above. The same applies to Sophos Endpoint: SIEM integration is included and Sophos names Splunk, but detection and investigation start with the separate Sophos EDR product.
Mistakes buyers make with SIEM integration
- Treating it as a tick-box. A connector nobody uses is a line on a datasheet, not protection.
- Buying a SIEM to feel covered. Without an analyst, a SIEM stores alerts rather than acting on them.
- Streaming everything. Raw endpoint telemetry is high-volume, and Sentinel bills by volume. Start with alerts.
- Assuming "named" means "included in your tier". Some vendors put connectors or data export behind higher tiers or add-ons; Acronis, for example, sells SIEM integration as an add-on.
- Ignoring the MSP's choice. If your provider runs the SIEM, its platform decides which endpoint products fit.
Frequently asked questions
Does a small business need a SIEM?
Usually not. A SIEM pays off when someone watches it. A small business without security staff gets more from EDR with 24/7 managed response, where the vendor's analysts do the correlation for you.
Which EDR integrates with Microsoft Sentinel?
Microsoft Defender for Business feeds Sentinel natively, and ThreatDown also names Sentinel on its integration pages. Bitdefender GravityZone and ESET PROTECT name it too, but the tiers we list from those vendors are prevention products without EDR. The table above lists every EDR product and the SIEMs it names.
Which EDR integrates with Splunk?
SentinelOne, ThreatDown and WatchGuard Endpoint Security 360 name Splunk among the EDR products here. Each product page links to the vendor's integration documentation.
Do I need a SIEM if I have EDR?
Not necessarily. EDR watches endpoints in depth. A SIEM correlates endpoints with network, email, identity and cloud logs. The SIEM adds value only when someone investigates what it correlates.
Methodology and caveats
SIEM integration status and named SIEMs are recorded on each Endpoint Index product page from the vendor's integration or partner pages, with the date we checked them. Named integrations are the ones a vendor lists by name; others may exist through marketplaces or APIs. The Sentinel billing model was checked on Microsoft's pricing page on 30 September 2026. Integrations change often and may depend on tier. Confirm with the vendor before buying.
Sources
- Microsoft. Microsoft Sentinel pricing. Checked 30 September 2026.
- Legal Information Institute. 23 NYCRR 500.14, Monitoring and training, and 500.1(d), Class A company.
- Bitdefender. SIEM integrations.
- ThreatDown. Technology integrations.
- Endpoint Index. Vendor integration pages, cited on each product page. Newest price check: 2026-10-02.
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