# Security Onion Pro vs UTMStack Real-time SIEM & XDR: side-by-side comparison (2026) [Security Onion Pro](https://cybersectools.com/tools/security-onion-pro) is a commercial [security information and event management](https://cybersectools.com/categories/security-information-and-event-management-siem) solution by [Security Onion Solutions](https://cybersectools.com/companies/security-onion-solutions). [UTMStack Real-time SIEM & XDR](https://cybersectools.com/tools/utmstack-real-time-siem-and-xdr) is a commercial [security information and event management](https://cybersectools.com/categories/security-information-and-event-management-siem) solution by [UTMStack](https://cybersectools.com/companies/utmstack). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best SIEM Solutions for Business](https://cybersectools.com/shortlists/best-siem-solutions) picks Microsoft Sentinel, Splunk Enterprise Security, CrowdStrike Falcon Next-Gen SIEM and 4 more. ## Side-by-side comparison | | Security Onion Pro | UTMStack Real-time SIEM & XDR | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Security Information and Event Management | Security Information and Event Management | | Verified | No | No | | Deployment type | On-Premises | Hybrid | | Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Security Onion Solutions | UTMStack | | Headquarters | – | – | ### Use cases and capabilities | | Security Onion Pro | UTMStack Real-time SIEM & XDR | |---|---|---| | NDR | Yes | – | | SSO | Yes | – | | Encryption | Yes | – | | MITRE ATT&CK | Yes | – | | YARA | Yes | – | | Sigma | Yes | – | | Suricata | Yes | – | | Case Management | Yes | – | | AI Copilot | Yes | – | | osquery | Yes | – | | Log Management | – | Yes | | Open Source | – | Yes | ### Core features **Security Onion Pro** 10 features listed. Sign in on the page to see them. **UTMStack Real-time SIEM & XDR** 10 features listed. Sign in on the page to see them. ### Integrations **Security Onion Pro** 12 integrations listed. Sign in on the page to see them. **UTMStack Real-time SIEM & XDR** 3 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Security Onion Pro](https://cybersectools.com/tools/security-onion-pro) fits if you need to run it on your own servers. - [UTMStack Real-time SIEM & XDR](https://cybersectools.com/tools/utmstack-real-time-siem-and-xdr) fits if you need both cloud and on-premises options and you are a small business. ## Security Onion Pro vs UTMStack Real-time SIEM & XDR FAQ Common questions when comparing Security Onion Pro vs UTMStack Real-time SIEM & XDR for security information and event management. ### What is the difference between Security Onion Pro and UTMStack Real-time SIEM & XDR? **Security Onion Pro**: Commercial license tier adding enterprise features and support to Security Onion NSM/SIEM. Built by Security Onion Solutions. **UTMStack Real-time SIEM & XDR**: Open source SIEM and XDR platform for real-time threat detection and response. Built by UTMStack. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Security Onion Pro and UTMStack Real-time SIEM & XDR? **Security Onion Pro** is made by Security Onion Solutions. **UTMStack Real-time SIEM & XDR** is made by UTMStack. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Security Onion Pro a good alternative to UTMStack Real-time SIEM & XDR? Often, yes. Security Onion Pro and UTMStack Real-time SIEM & XDR are both Security Information and Event Management products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Security Onion Pro vs BluSapphire SIEMless-SIEM](https://cybersectools.com/compare/blusapphire-siemless-siem-vs-security-onion-pro) - [Security Onion Pro vs Exabeam New-Scale SIEM](https://cybersectools.com/compare/exabeam-new-scale-siem-vs-security-onion-pro) - [Security Onion Pro vs BluSapphire OnePlatform](https://cybersectools.com/compare/blusapphire-oneplatform-vs-security-onion-pro) - [UTMStack Real-time SIEM & XDR vs BluSapphire SIEMless-SIEM](https://cybersectools.com/compare/blusapphire-siemless-siem-vs-utmstack-real-time-siem-and-xdr) - [UTMStack Real-time SIEM & XDR vs Exabeam New-Scale SIEM](https://cybersectools.com/compare/exabeam-new-scale-siem-vs-utmstack-real-time-siem-and-xdr) - [UTMStack Real-time SIEM & XDR vs BluSapphire OnePlatform](https://cybersectools.com/compare/blusapphire-oneplatform-vs-utmstack-real-time-siem-and-xdr) ## Alternatives to each - [See all Security Onion Pro alternatives](https://cybersectools.com/alternatives/security-onion-pro) - [See all UTMStack Real-time SIEM & XDR alternatives](https://cybersectools.com/alternatives/utmstack-real-time-siem-and-xdr) --- Source: https://cybersectools.com/compare/security-onion-pro-vs-utmstack-real-time-siem-and-xdr For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/security-onion-pro.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Security Onion Pro and UTMStack Real-time SIEM & XDR: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md