Microsoft Sentinel is a commercial security information and event management solution by Microsoft. SentinelOne AI SIEM is a commercial security information and event management solution by SentinelOne. Features, integrations, deployment and the company behind each one, side by side.
What our shortlists say about the one we picked.
Best for: Companies already running Microsoft
It earns its place because SIEM, SOAR, behavior analytics and a data lake come as one cloud service, so you do not stitch them together yourself. That suits any size, from SMB to enterprise, and it is the natural pick if Defender already runs your endpoints. If most of your stack is not Microsoft, check which of your key sources sit among the 350 connectors before you commit.
From Best SIEM Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Cloud-native SIEM with AI-driven analytics and unified security operations
AI-driven SIEM platform for real-time threat detection and response
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
Microsoft Sentinel fits if you are a small business.
Common questions when comparing Microsoft Sentinel vs SentinelOne AI SIEM for security information and event management.
Microsoft Sentinel: Cloud-native SIEM with AI-driven analytics and unified security operations. Built by Microsoft.
SentinelOne AI SIEM: AI-driven SIEM platform for real-time threat detection and response. Built by SentinelOne.
The table above shows where their features, integrations, deployment and company size fit differ.
Microsoft Sentinel is made by Microsoft. SentinelOne AI SIEM is made by SentinelOne. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Microsoft Sentinel and SentinelOne AI SIEM are both Security Information and Event Management products. Use the table above to see where features, deployment and company size fit differ.
Need the answer fast? Best SIEM Solutions for Business picks Microsoft Sentinel, Splunk Enterprise Security, CrowdStrike Falcon Next-Gen SIEM and 4 more.See the shortlist
