12 Nov 2025

Harlay Avocats acts as counsel to company and sellers in Groupe Atos acquisition of Cosmian Tech

"Harlay Avocats advised the sellers and Cosmian Tech in the acquisition of Cosmian Tech by Groupe Atos. Cosmian, a 2018 French deeptech specialising in cryptographic key management, will see its KMS integrated with Eviden's sovereign HSMs to create a sovereign key management solution and strengthen Eviden's cybersecurity offering for French and European companies."

Harlay Avocats advised the sellers and the company Cosmian Tech in connection with the acquisition of Cosmian Tech by Groupe Atos. Groupe Atos has completed the acquisition of Cosmian Tech, a French deeptech specialising in the protection of sensitive data. Founded in 2018 by Sandrine Murcia, Bruno Grieder and Raphaël Auphan, Cosmian Tech provides solutions that enable companies to regain control over the security of confidential data, notably through cryptographic key management technologies (KMS). The acquisition paves the way for the deployment of a sovereign key management solution that will strengthen the data protection product offering of Eviden, Groupe Atos's products division. The solution combines the power of Eviden's sovereign hardware security modules (HSMs) with Cosmian Tech's high-performance, crypto‑agile KMS. Integrating Cosmian Tech's key management technologies will allow Eviden to expand its cybersecurity product range, enhance data security for French and European companies, and reinforce its position as a European leader in cybersecurity and advanced digital technologies. Harlay Avocats represented the sellers and Cosmian Tech with a team composed by: Marie Laure de Cordovez (partner) and Charlotte Striffler (senior counsel).
Read the full story

Register for free to access daily news.

Register Free
We use cookies to improve your experience, analyze traffic, and serve targeted ads. Read our Cookie Policy.

Cookie Preferences

Customize your cookie settings. Necessary cookies are always enabled.

Strictly Necessary

Required for the website to function (e.g. login, security).

Analytics & Statistics

Help us understand how visitors interact with the website.

Marketing & Ads

Used to deliver relevant ads and track effectiveness.