- trivago
Hotel metasearch comparison site (majority owned by Expedia Group) where hotels and OTAs bid to display rates.
- myhotelshop (RateGain / Sojern)
myhotelshop GmbH, founded in Leipzig in January 2012 by Ullrich Kastner, is a metasearch bid-management platform and managed agency: it buys and optimises a hotel's CPC/CPA placements on Google Hotel Ads, trivago, TripAdvisor, Kayak and Bing, and connects the hotel's booking engine and rate feed so the direct rate is live and bookable on those comparison surfaces. It sells both as SaaS (self-managed bidding) and as a full-service agency, with the pitch being cheaper direct bookings versus OTA commission. RateGain agreed to acquire it in September 2021 and kept the brand initially; as of July 2026 www.myhotelshop.com no longer serves its own site — it 302-redirects to RateGain's UNO hotel-paid-media page, which in turn 301-redirects to sojern.com/solutions/commission, indicating the brand has been absorbed into RateGain's Sojern martech unit following the USD 250M Sojern acquisition (Nov 2025) and the Adara/Sojern brand unification (Mar 2026). The current commercial model there is commission-on-completed-stay: the vendor fronts the media spend and takes a cut of the booking.
- DerbySoft
Connectivity and distribution middleware specialising in hotel-to-OTA integration, content distribution and metasearch delivery. Positions itself as a travel commerce accelerator spanning connectivity, AI-driven marketing and an end-to-end content platform.
- Tripadvisor
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".
- Triptease
Triptease is a London-based "data marketing platform" for hotels whose single purpose is shifting bookings away from OTAs onto the hotel's own website. Its core mechanic is rate intelligence: it shops OTA prices in real time, auto-matches or beats them on the hotel's site and on metasearch, and surfaces personalised on-site messaging to push browsers into the direct booking engine. Around that sit metasearch and paid-search bidding, display retargeting, abandonment email with segmented push into the hotel's CRM, AI chat, and Date Boost for demand-sensitive dates. It is sold to revenue, e-commerce and marketing managers on fixed licence or pay-per-stay/CPA terms, and is distributed partly through CRS channels — Sabre SynXis customers get a free "Price Check Lite" tier via the Aven Hospitality partnership.
- Seekda
Austrian all-in-one hotel tech ecosystem built for independent and Alpine properties: PMS, Channel Manager (300+ OTAs incl. Booking.com, Expedia, Google, Trivago, TripAdvisor), the KUBE booking engine, Metasearch integration and Seekda Pay for payments. Founded 2007 in Innsbruck; ~104 employees.