Companies

X-Mode was a location intelligence company that collected and sold precise geolocation data from mobile devices until its shutdown following privacy concerns.

xAI Ads is the advertising platform built on Elon Musk's xAI ecosystem, enabling brands to reach audiences through Grok and X (formerly Twitter) integrations.

A comprehensive advertising technology platform offering programmatic buying, selling, and data management solutions for premium digital advertising.

Xaxis is GroupM's programmatic advertising platform and outcome media specialist, providing data-driven digital media buying and optimization services globally.

Comcast Cable's consumer-facing brand for residential broadband, video, mobile, and home security. Source of household viewership/ACR data feeding Effectv/CAMS targeting.

Xiaohongshu Ads is the advertising platform for Xiaohongshu (Little Red Book), China's leading lifestyle and social commerce platform combining content sharing with e-commerce.

Xiaomi is a Chinese multinational technology company that designs, develops, and sells smartphones, mobile apps, and related consumer electronics. It is one of the world's largest smartphone manufacturers and has expanded into various other product categories, including smart home devices, laptops, and wearables.

Xplenty was a cloud-based data integration and ETL platform that enabled businesses to build data pipelines without coding, later acquired by Integrate.io in 2021.

Xumo is a free ad-supported streaming TV (FAST) platform offering live and on-demand content across multiple devices.

XX Artists was a creator-focused talent management and brand partnership platform that has since rebranded, connecting social media influencers with advertisers for sponsored content campaigns.

Global digital media and advertising technology company operating one of the world's largest native advertising platforms and demand-side platforms (DSP).

Yahoo's advertising platform offering display, native, search, and video advertising solutions across Yahoo's owned and operated properties and partner networks.

Direct path from Yahoo DSP to premium publisher inventory bypassing SSP. Launched 2023, scaled 2024 — by Q3 2024 82% of Yahoo DSP advertisers had used Backstage. Premium publisher partners: DIRECTV, LG Ad Solutions, TelevisaUnivision, Warner Bros Discovery.

Yahoo's identity solution for the cookieless era. People-based identity graph derived from Yahoo's 900M+ logged-in users. Used by advertisers and publishers to maintain audience targeting and measurement post-third-party-cookie deprecation.

Publishing platform giving influencers ad-revenue share. Launched March 2024; 135 creators by July 2025.

Yahoo's demand-side platform (DSP) that enables advertisers and agencies to programmatically buy display, video, native, and connected TV advertising across premium inventory.

Yahoo's financial news and data destination. One of Yahoo's most monetizable consumer surfaces post-Apollo acquisition. Significant display + native ad inventory plus Yahoo Finance Plus subscription tier.

Yahoo's unified native and search advertising platform that sunset in April 2023, with its capabilities redistributed to Yahoo Native (via Taboola) and Microsoft Advertising.

Yahoo Japan (now LY Corporation) is Japan's leading internet services company operating a major digital advertising platform, search engine, e-commerce, and portal services.

Yahoo's free webmail service — one of the largest in the world by user count. Supports inbox advertising via Yahoo's native ad placements (a meaningful AdTech revenue stream for the post-2021 Apollo-owned Yahoo).

Yahoo's native advertising offering. Powered since 2023 via an exclusive partnership with Taboola (Yahoo turned over native advertising operations to Taboola in a 30-year exclusive deal in November 2022, with Yahoo taking ~25% equity in Taboola).

AI-based search engine launched by Yahoo in 2026. Yahoo's answer to AI-search shifts (ChatGPT/Perplexity).

Yahoo's search advertising platform offering native and display ads across Yahoo's owned and operated properties and partner network.

Yahoo's sports content and fantasy-sports destination. Major ad inventory surface; Yahoo Fantasy is one of the largest fantasy sports platforms in the U.S.