Deciso

Open-source firewall and network security

Middelharnis, Netherlands
Founded 2000

Deciso is a Netherlands-based manufacturer of network security appliances and the creator of OPNsense, an open-source firewall and routing platform built on FreeBSD. The company designs and produces its own hardware in-house and develops OPNsense software, which is trusted by over 350,000 networks worldwide. Deciso offers both a free community edition and a commercial Business Edition of OPNsense, along with purpose-built hardware appliances.

Last Updated: May 6, 2026

Current Valuation

No valuation data available

Funding Summary

No funding data available.

Core OSS Projects

Open-source firewall and routing platform based on FreeBSD, featuring stateful firewall, VPN, intrusion prevention, and traffic shaping capabilities.

License: BSD-2-Clause

Business Information

Industries

Software

Technologies

Network SecurityRoutingVPNFirewall

Sectors

EnterpriseSMBs

Licenses

BSD-2-Clause

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