Avast Ultimate Business Security is a commercial endpoint protection platform solution by Avast. OnSystem Logic OnSystem Defender is a commercial endpoint protection platform solution by OnSystem Logic. Features, integrations, deployment and the company behind each one, side by side.
Business endpoint protection with antivirus, malware defense, and mgmt tools
Endpoint app control & memory protection to prevent malware execution on Windows.
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Based on what each listing shows: deployment, company size, price and open source.
Avast Ultimate Business Security fits if you want a cloud product and you are a startup.
OnSystem Logic OnSystem Defender fits if you need to run it on your own servers and you are a mid-market company or an enterprise.
Common questions when comparing Avast Ultimate Business Security vs OnSystem Logic OnSystem Defender for endpoint protection platform.
Avast Ultimate Business Security: Business endpoint protection with antivirus, malware defense, and mgmt tools. Built by Avast.
OnSystem Logic OnSystem Defender: Endpoint app control & memory protection to prevent malware execution on Windows. Built by OnSystem Logic.
The table above shows where their features, integrations, deployment and company size fit differ.
Avast Ultimate Business Security is made by Avast. OnSystem Logic OnSystem Defender is made by OnSystem Logic. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Avast Ultimate Business Security and OnSystem Logic OnSystem Defender are both Endpoint Protection Platform products. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-01
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