What are cookies?

Cookies are text files that are placed and stored on the hard drive of your terminal (computer, Smartphone, tablet or any other device that can be used to browse the internet) by a website server. Cookies are saved either temporarily for the duration of a session (session cookies) or permanently (permanent cookies). Session cookies are automatically deleted after the end of your website visit. Permanent cookies remain on your device until you delete them yourself or they get automatically deleted by your web browser.

Cookies have different functions. Some of these cookies are required to access some site functionalities. Others are used to record statistics and site visit figures (number of visitors to each page, geographical origin of the devices used to visit the site, etc.) and statistics concerning the consultation and use of various elements present on the site (sections and content browsed, duration of visit, etc.). They can also be used to provide additional services such as the sharing of content on a website via social networking sites.

Cookies can come from Alstom (first-party cookies) or from third-party companies (third-party cookies).

You are not obliged to accept the use of cookies. You can allow cookies based on their category in the cookie consent banner. Besides, you can set your web browser in a way that you are informed about the setting of cookies and allow cookies only in individual cases, exclude the acceptance of cookies for certain cases or in general and enable automatic deletion of cookies when you close your browser.

To read more about cookies:

Cookies present on Alstom's internet sites

Strictly necessary cookies

These cookies are necessary for our websites to function and cannot be switched off. They are essential for browsing our websites or strictly necessary to provide a service expressly requested by the user. You can set your browser to block or alert you about these cookies. These cookies do not store any personally identifiable information.

Analytical / performance cookies

These cookies enable us to monitor the use and performance of our websites, establish statistics, number of visitors and the use of various site elements (which pages or sections are consulted the most often, which articles are read the most, etc.) to ensure that our services are as interesting and user-friendly as possible.

These cookies are mostly set by Alstom. Being third-party cookies, they are not saved by us. We therefore suggest that you read the websites of these third parties to find out more about the saved cookies and how they are managed.

You can refuse these cookies at any time by changing your cookie consent.

Targeting / Sharing cookies (social links)

Our sites contain links to Facebook, Twitter and other similar social media sites that enable you to share the content of our websites with other people via social media. When you use these share buttons, a third-party cookie is installed.

If you are connected to a social media site when browsing our websites, the share button will allow you to link the content viewed to your social media user account. If you do not want the social media site to link the information gathered through our sites to your user account, you will need to log out of the social media site first.

In any case, you can also refuse these cookies by changing your consent or browser settings.

Please read the privacy policies of these social media sites to ensure that you are aware of your rights and the usage purposes, in particular advertising, of browsing information they may collect via these application buttons.

Functional or experience enhancing cookies

These cookies enable us to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.

If you want to see what cookies we are currently using on our website, please open the cookie consent banner (Privacy Preference Center) and click on the view vendor details in each cookie category.

On the website customerportal.alstom we are using the following cookies:

Cookie name


Cookie type



1 Year


Used to track unique page visitors in Experiences


A few seconds

First party / Analytics

This cookie name is associated with the Piwik open source web analytics platform. It is used to help website owners track visitor behaviour and measure site performance. It is a pattern type cookie, where the prefix _pk_ses is followed by a short series of numbers and letters, which is believed to be a reference code for the domain setting the cookie.




Used to store site parameters in the session for reuse across requests by a single client for functionality and performance reasons. Metadata required for fetching site pages and components based on pageId, schema, viewType, brandingSet, formFactor, and audience targeting.

Sfdc stream

3 hours


Used to maintain a sticky (persistent) session on the salesforce.com domain. Makes sure that subsequent streaming requests are forwarded to the same server instance where the streaming subscription request was originally handled

If you have any further questions regarding data privacy please contact: data.privacy@alstomgroup.com