Largest travel and tourism company in the world runs on Pimcore
On the main website www.tui.at the CMS TYPO3 has been used for many years. However, many SEO-relevant sections of the website have been implemented with Pimcore, for example www.tui.at/unterkuenfte/hotels and www.tui.at/reisebuero. The master data management of all hotels and travel offices is done using Pimcore data objects and a JSON is automatically generated based on this data (Headless CMS).
Also, Pimcore is currently used by TUI Austria on the following pages: