Self-hosted / open sourceCybersecurityHeadquarters: FR

Quarkslab: sovereignty score and 8 European alternatives

Quarkslab is a French cybersecurity company founded in 2011 in Paris. Its work covers security research and adversary simulation through its QRedTeam and QLab services, and QShield, a software protection product. QShield protects applications at binary level against reverse engineering, tampering and theft of intellectual property, using obfuscation, runtime protection and secure storage of sensitive data. It is applied in the customer's build process and supports C, C++, Java, Kotlin and Objective-C, among other languages.

Quarkslab is a French SAS with its head office in Paris. Its legal notice names no parent company and no controlling shareholder. The website is hosted by an Italian provider in Florence, and the privacy policy describes data-subject rights, including the right to complain to the CNIL, the French supervisory authority. For a European organisation, the relevant point about QShield is that protection is embedded in the software the customer ships.

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

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Sovereignty score

80 / 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-380
Closed source, but self-hostable: encryption keys and runtime under your own control
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-680
Closed source, but self-hostable on your own infrastructure

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 12, 2026

Headquarters	FR (EU)Verified by hand
Data hosting	Self-hosted, e.g. in EU (your choice)Verified by hand
Open-source	NoVerified by hand
GDPR-compliant	NoVendor-stated
Category	Cybersecurity
Type	Product
Website	quarkslab.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Quarkslab

The European alternatives to Quarkslab come from our knowledge base of over 8,000 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

124 European Cybersecurity 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 Quarkslab

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

Quarkslab runs on infrastructure you choose and control yourself. You decide where the data lives, including fully within the EU if you want — this is not a fixed hosting choice made by the vendor.

Quarkslab is closed source, but you run the software yourself on your own infrastructure. The encryption keys and the runtime therefore stay under your own control, though you cannot audit or modify the source code. Ask about export options and open standards to limit software-level lock-in.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Quarkslab 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 Quarkslab?

It depends on your use case. Strong EU alternatives to Quarkslab include Actalis, Advenica and Aikido Security. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Quarkslab?

Our list of EU alternatives to Quarkslab is mostly commercial options. Browse the category on the map for open-source choices.

Is Quarkslab GDPR-compliant and where is the data hosted?

Quarkslab is headquartered in FR (EU) and hosts data in EU. That makes Quarkslab 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 12, 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".

No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction

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".

We found none of these signals on the vendor's own site when we checked.

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

Checked on October 12, 2026. What is the Cyber Resilience Act?

Digital sovereignty in Cybersecurity

Cybersecurity: Threat detection, endpoint protection, SIEM, vulnerability management. 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.

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