Microsoft Sentinel vs Splunk Enterprise Security
Side-by-side from the Top 11 ranking of Top 11 SIEM Software. Last verified July 10, 2026.
The short answer
Microsoft Sentinel ranks higher on Top 11 (#1 vs #2) for Security operations and IT leaders. Cloud-native SIEM with SOAR and free Microsoft logs.
At a glance
| Microsoft Sentinel | Splunk Enterprise Security | |
|---|---|---|
| Top 11 rank | #1 / Top 11 SIEM Software | #2 / Top 11 SIEM Software |
| Score (out of 9.4) | 9.2 | 9.1 |
| Best for | Best cloud-native SIEM for Microsoft estates | Best for deep search and correlation |
| Pricing | $$ (roughly $2.30 to $5 per GB ingested, with a free Microsoft-log allowance) | $$$ (workload or ingest pricing, commonly six figures per year at scale) |
| HQ | Redmond, USA | San Francisco, USA |
| Founded | 2019 | 2003 |
Microsoft Sentinel
Cloud-native SIEM with SOAR and free Microsoft logs.
www.microsoft.com/en-us/security/business/siem-and-xdr/microsoft-sentinelSplunk Enterprise Security
Deepest search language and correlation engine.
www.splunk.com/en_us/products/enterprise-security.htmlMethodology and scoring weights live at /methodology. No vendor pays for placement — see about.