Category: Network & Monitoring
8 European alternatives to OpenNMS — GDPR-compliant & EU-hosted.
Open-source enterprise network and systems monitoring platform with a web UI, maintained by The OpenNMS Group (part of NantHealth since 2021).
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Facts
- Headquarters
- US (US)
- EU adequacy decision
- Only for companies individually certified under the EU-US Data Privacy Framework
- Sovereignty model
- Open-source, distributed
- Category
- Network & Monitoring
- Type
- Product
- GDPR-compliant
- Yes
- Open-source
- Yes
- Data hosting
- EU
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".
No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction
Sovereignty profile of OpenNMS
How this vendor scores on the five dimensions of the Digital Sovereignty Heatmap: 0 is sovereign, 100 is high exposure. These are the same scores the assessment uses.
| Jurisdictional exposure (JES) | Headquartered in the US: CLOUD Act and FISA 702 | 90 |
|---|---|---|
| Data residency (DRS) | EU-only hosting | 0 |
| Cryptographic key sovereignty (CKS) | Self-hostable: encryption keys under your own control | 10 |
| Platform lock-in (PLS) | Open source: low switching costs | 20 |
| Source & runtime sovereignty (SRS) | Source code auditable, forkable and self-hostable | 25 |
| Average | 29 |
Why digital sovereignty matters with OpenNMS
OpenNMS is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.
Data is hosted exclusively in the EU, so OpenNMS scores best on data residency.
OpenNMS 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 OpenNMS together with your other vendors and gives a total score, a heatmap and the main risk drivers.
Top EU-based & GDPR-compliant alternatives to OpenNMS
The European alternatives to OpenNMS come from our knowledge base of over 3,600 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.
- Checkmk↗
Checkmk is an open-source IT infrastructure monitoring platform developed by Checkmk GmbH (Munich, Germany). In February 2025, US growth-equity firm PSG Equity acquired a majority controlling stake, making PSG (US) the ultimate parent. The software itself remains open source, but the company is no longer EU-controlled.
DE · open-source
- DataMiner (Skyline Communications)↗
Belgian network management and orchestration platform by Skyline Communications (Izegem) for broadcast, satellite, IPTV and broadband.
BE · commercial
- Fing↗
Irish network scanner and device-recognition tool (Fing Limited, Dublin) for discovering and monitoring devices on a LAN or Wi-Fi network; app, desktop and Fingbox. Part of Belgium's Lansweeper (majority-owned by Dovesco) since 2020; a majority stake in Lansweeper by the UK's Bridgepoint was announced in July 2026, closing expected by end of 2026. Scans run locally; the hosting region of the optional cloud features is not published.
IE · commercial
Frequently asked questions
What is the best European alternative to OpenNMS?
It depends on your use case. Strong EU alternatives to OpenNMS include Centreon, Checkmk and collectd. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.
Are there open-source alternatives to OpenNMS?
Yes. Open-source EU alternatives to OpenNMS include Centreon, Checkmk, collectd and Icinga. These keep your data fully under your own control and let you self-host if you want to.
Is OpenNMS GDPR-compliant and where is the data hosted?
OpenNMS is headquartered in US and hosts data in EU. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.
Digital sovereignty in Network & Monitoring
Network & Monitoring: Network monitoring, infrastructure monitoring, log management and observability. 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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