Legal notices


Blue Efficience is a limited liability company (SARL).

Its registered office is located at 67 rue Saint Jacques in the 5th arrondissement of Paris.

The company is registered with the RCS Paris under number 509 138 426 00051, with a share capital of €35,800.

Blue Efficience can be reached at +33 1 42 00 04 85, or via email at This email address is being protected from spambots. You need JavaScript enabled to view it..

This website is the exclusive property of Blue Efficience.

Publication Director : Thierry CHEVILLARD

Personal Data Protection

Internet users may be required to provide certain personal data (email address, first name, last name) when filling out forms offered to them, notably for subscribing to the company’s newsletter.

Blue Efficience complies with the provisions of the “Information Technology and Liberties” law of January 6, 1978, and takes all necessary precautions to preserve the security of the personal information entrusted.

No personal information will be communicated to third-party companies without the prior and informed consent of the internet user.


A Cookie is a text file placed on the hard drive of the internet user’s terminal (computer, tablet, phone, or any device allowing internet access) by the server of the visited website.

This Cookie file can only be read by its issuer and does not allow our company to directly identify a user.

However, it allows the tracking of different actions of the same user through the unique identifier created by the Cookie file. Some cookies are essential, for example, to remember the language settings of a site.

Blue Efficience uses two types of cookies:

  • Technical cookies to facilitate internet navigation,
  • Audience measurement cookies issued by our company or a service provider (notably Google Analytics), which allow us to measure the audience of our different pages and contents, in order to evaluate and better organize them.

These cookies also help to identify navigation issues that the internet user may encounter.

The lifespan of cookies is less than 13 months.


In accordance with the “Information Technology and Liberties” law and the European Regulation on the Protection of Personal Data applicable from May 25, 2018, you can exercise your right to access, rectify, limit or delete data concerning you by contacting us: This email address is being protected from spambots. You need JavaScript enabled to view it..

You can also define directives regarding the storage, erasure, and communication of your personal data after your death. We strive to take all necessary care in the processing of your personal data.

In case of difficulty, you can contact us directly or, if necessary, file a complaint with the CNIL.

Hosting Information


SAS with a capital of €10,174,560 RCS Lille Métropole 424 761 419 00045
APE Code 2620Z VAT Number: FR 22 424 761 419
Registered Office: 2 rue Kellermann – 59100 Roubaix – France