Side-by-side comparison of AI visibility scores, market position, and capabilities
World's largest tours and experiences OTA; owned by Tripadvisor. FY2024 revenue $840M (+14% YoY); Q4 2024 revenue $186M (+16% YoY).
Viator is the world's leading online marketplace for tours, activities, and travel experiences, founded in 1999 in Brisbane, Australia, and acquired by Tripadvisor in 2014. The platform lists over 300,000 experiences—city tours, outdoor adventures, cooking classes, skip-the-line tickets, and private guides—across 190+ countries. Viator operates both a consumer-facing marketplace and a B2B distribution API that powers experiences inventory on Booking.com, American Express Travel, and hundreds of affiliate partners.\n\nViator's operator network includes both large tour companies and independent local guides, with a dynamic pricing and availability management system that enables real-time booking. The platform's deep integration with Tripadvisor's 1.4 billion reviews creates a powerful review-to-booking funnel unique in the experiences category. Viator operates on a commission-based model, charging operators 20–25% per booking with no upfront listing fees.\n\nViator reported full-year 2024 revenue of $840M (+14% YoY) and Q4 2024 revenue of $186M (+16% YoY). The tours and activities market is estimated at $300B globally, with online penetration still below 20%, positioning Viator for continued structural growth. Viator's B2B distribution API and white-label solutions expand its reach well beyond direct consumer traffic.
a2z Radiology AI raised $20M in 2025 for its whole-body AI that simultaneously screens for 24+ conditions across CT scans — from incidental cancers to cardiovascular risk — in a single automated read.
a2z Radiology AI has developed a whole-body CT analysis platform that simultaneously screens for over 24 medical conditions across a single CT scan, including incidental cancers, coronary artery disease, aortic aneurysm, bone density loss, and organ abnormalities. The AI acts as a second reader that radiologists can use to catch incidental findings that fall outside the primary reason for a scan — a major source of missed diagnoses.
Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.