Self-hosted / open sourceNetwork & Firewall ManagementHeadquarters: NL

Deciso OPNsense: sovereignty score and 8 European alternatives

OPNsense is a free, open source firewall and routing platform based on FreeBSD. It offers, among other things, a stateful IPv4 and IPv6 firewall, multi-WAN with load balancing and failover, VPN via IPsec, OpenVPN and WireGuard, high availability with CARP, and intrusion prevention with Suricata. Plugins extend it. The project started in 2015 as a fork of pfSense. Deciso B.V. develops OPNsense and sells the paid Business Edition, official hardware appliances, support and training. You install it on your own hardware or in a virtual machine.

Deciso is a Dutch company, based in Middelharnis. The code is released under a two-clause BSD licence, so you can inspect and modify the source code and use it without vendor-bound hosting. Because OPNsense runs in your own network, configuration and traffic stay under your control. The paid editions and appliances are an option for organisations that want support from a European provider, but the software itself can also be used without a subscription.

See the 8 European alternatives ↓Assess your stack with Deciso OPNsense pre-selected

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Sovereignty score

94 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-3100
EU-only hosting
Cryptographic key sovereignty SOV-390
Self-hostable: encryption keys under your own control
Freedom from lock-in SOV-680
Open source: low switching costs
Source & runtime sovereignty SOV-4 · SOV-6100
Source code auditable, forkable and self-hostable

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 2, 2026

Headquarters	NL (EU)Verified by hand
Sovereignty model	Open-source, distributedVerified by hand
Data hosting	EUVerified by hand
Open-source	YesVerified by hand
GDPR-compliant	YesVendor-stated
Compliance documents	1 published, see belowVendor-stated
Hosting signal	LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL (NL)Technically measured
Category	Network & Firewall Management
Type	Product
Website	opnsense.org ↗

The hosting signal shows the network that serves the vendor's website, often a CDN, and not necessarily where the service or your data is hosted. How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Deciso OPNsense

The European alternatives to Deciso OPNsense come from our knowledge base of over 6,800 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.

Score per alternative: 0 = high exposure, 100 = sovereign

41 European Network & Firewall Management vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Deciso OPNsense

Deciso OPNsense is headquartered in NL and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Deciso OPNsense scores best on data residency.

Deciso OPNsense is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Deciso OPNsense together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Deciso OPNsense?

It depends on your use case. Strong EU alternatives to Deciso OPNsense include Alcatel-Lucent Enterprise, Allegro Packets and Arelion. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Deciso OPNsense?

Yes. Open-source EU alternatives to Deciso OPNsense include BIRD Internet Routing Daemon. These keep your data fully under your own control and let you self-host if you want to.

Is Deciso OPNsense GDPR-compliant and where is the data hosted?

Deciso OPNsense is headquartered in NL (EU) and hosts data in EU. It is also open-source, so you can self-host it. That makes Deciso OPNsense an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 2, 2026.

Sources

Public sources used in the latest check of this record.

Compliance evidence

The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".

Security page / trust center: opnsense.org/privacy-en-cookies/

Provenance of the links above:Vendor-stated

Links checked on September 23, 2026.

Cyber Resilience Act

Public signals that relate to the EU Cyber Resilience Act. They do not count towards the score. A missing line means "not found publicly".

Report a vulnerability: docs.opnsense.org/security.html
Supported versions: docs.opnsense.org/releases.html
Organisation behind the open-source project: Deciso B.V.

For products in scope of the CRA, CE marking is required from 11 December 2027; this cannot be checked yet.

Checked on October 9, 2026. What is the Cyber Resilience Act?

Digital sovereignty in Network & Firewall Management

Network & Firewall Management: Central management of firewalls, switches and Wi-Fi, network access control (NAC), load balancing and DNS/DHCP/IPAM. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.

Also in this category

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