Online Travel Agency

The dominant online travel agency for European accommodation, taking commission (typically ~15–20%) on bookings it originates.

Global OTA group distributing hotel inventory across Expedia, Hotels.com and partner sites, with its own One Key loyalty programme.

Booking Holdings' OTA brand, strongest in Asia-Pacific source markets, distributing hotel inventory worldwide.

The South Tyrolean hoteliers' and restaurateurs' association (Schlachthofstraße 59, 39100 Bozen), territorial body of Federalberghi and FIPE, with ~4,500 members. Runs Booking Südtirol, the regional booking platform, whose widgets (widget.bookingsuedtirol.com — a v1 `widget.js`, a v2 `bundle.js` and a `BookingSüdtirol.Widgets.Enquiry` enquiry widget) are embedded on member hotel websites, plus service portals for payroll, contracts and e-invoicing.

German hotel booking platform with a strong corporate travel and managed-lodging business across DACH.

TripAdvisor-owned restaurant reservation platform and marketplace across Europe, with its own diner loyalty scheme (Yums) and commission/subscription models for restaurants.

Tripadvisor is the world's largest travel guidance platform, built on user-generated reviews (~1 billion reviews across ~8 million hotels, restaurants and attractions) and monetised through hotel metasearch, CPC advertising and two owned marketplaces: Viator for tours and experiences and TheFork for restaurant reservations. Its hotel-facing B2B products — Business Advantage, Sponsored Placements, TripConnect and the Review Express API — sell visibility and review volume back to the properties whose guests generate the content. Since 2011 it has traded on Nasdaq as TRIP; in April 2025 it absorbed its own parent, Liberty TripAdvisor, removing its controlling stockholder. After killing the paid Tripadvisor Plus subscription in 2024, the company relaunched consumer loyalty in August 2025 as Tripadvisor Rewards, a free app-only programme paying 5% back in "Trip Cash".

German curated travel portal for 'stilvolle Hotels, Ferienhäuser & Reisetipps' — editorially selected stylish hotels and holiday homes with referral links to the properties.

HolidayCheck is the largest hotel-review and package-travel booking portal in German-speaking Europe, founded in 1999 by students in Konstanz and now operated by HolidayCheck AG in Bottighofen, Switzerland under HolidayCheck Group AG in Munich. It combines a verified-review database with transactional booking, and through HC Touristik ("HolidayCheck Reisen") it also acts as a licensed tour operator selling package holidays as principal; sister brand MietwagenCheck/Driveboo covers rental cars. Hotels interact with it through the free HolidayCheck Business Center (review responses, profile and photo management, benchmarking) plus paid visibility, review widgets and the annual HolidayCheck Award badges. It is majority-owned by Hubert Burda Media, was delisted in 2021, and in July 2026 Burda engaged Raymond James to explore a sale.