# Who does Booking Holdings Inc. pay? Who are its key suppliers?
Canonical: https://valuechain.wiki/booking-holdings · Facet: suppliers · Updated: 2026-09-11T13:41:11.363421+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Booking Holdings Inc.'s confirmed suppliers/cost counterparties include Alphabet (Google) plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 2 cost edges, backed by 4 dated sources, 1 of them primary filings (as of 2026-09-11).

### 트립닷컴그룹(씨트립) (high)  → /trip-com-group.md
- metric: Amount $500M · FY2014 · Investment in a five-year senior convertible note issued by Ctrip
- note: Booking Holdings, then known as The Priceline Group, invested in a Ctrip convertible note and American depositary shares to deepen its strategic exposure to China's online travel market. This edge represents the investment made in 2014, not a current ownership balance.
- [confirms] SEC EDGAR (EN, filing, published 2015-02-19) https://www.sec.gov/Archives/edgar/data/1075531/000107553115000007/pcln-20141231_10k.htm: "we used $500 million of our non-U.S. cash to invest in a five-year senior convertible note issued by Ctrip.com"

### 알파벳 (구글) (high)  → /alphabet.md
- note: Booking Holdings relies on online search engines, especially Google, as a major performance-marketing channel. The company does not disclose Google-specific ad spend, while paid-search analysis independently confirms Booking.com's substantial Google Ads presence.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-18) https://www.sec.gov/Archives/edgar/data/1075531/000107553126000009/bkng-20251231.htm: "online search engines (primarily Google)"
- [confirms] Adthena (EN, analysis, published 2025-04-28) https://www.adthena.com/resources/blog/paid-search-power-plays/: "Booking.com commands a leading 27% of the travel accommodation Google Ads market."
- [mentions] Hana Securities (KO, research, published 2024-08-05) https://www.hanaw.com/download/research/FileServer/WEB/global/company/2024/08/05/BKNG_0805.pdf: "The company was increasing marketing investment in social-media channels."

### Adyen (mid)
- note: Adyen has supported Booking.com's global payments infrastructure since 2019. Booking Holdings recognizes payment-processing fees on merchant transactions but does not disclose the amount paid to Adyen.
- [confirms] SEC EDGAR (EN, filing, published 2026-02-18) https://www.sec.gov/Archives/edgar/data/1075531/000107553126000009/bkng-20251231.htm: "credit card and other payment processing fees"
- [confirms] Payments Dive (EN, news, published 2025-06-16) https://www.paymentsdive.com/spons/adyen-and-bookingcom-a-global-merchants-selection-framework-on-lpm-expans/750277/: "Adyen has partnered with Booking.com to power their global payments infrastructure."

Reverse side: https://valuechain.wiki/booking-holdings/customers.md · Ripple: https://valuechain.wiki/booking-holdings/ripple.md

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