Companies

Chartbeat is a content analytics company that provides real-time data and tools for publishers to understand audience engagement. It helps editorial and business teams optimize content, improve reader attention, and maximize advertising revenue across various digital platforms.

Chartboost is a leading mobile advertising and monetization platform specializing in in-app advertising for gaming and app developers, now operating as a subsidiary of Zynga.

Charter Communications, Inc. is the second-largest cable operator in the United States, providing video, internet, voice, and mobile services under the Spectrum brand. Headquartered in Stamford, Connecticut. Co-owner (with Comcast and Cox) of the Ampersand multichannel ad-sales JV; its ad-sales arm Spectrum Reach is the operating subsidiary.

Chartio was a cloud-based business intelligence and data visualization platform that enabled non-technical users to explore and analyze data through an intuitive drag-and-drop interface.

OpenAI's flagship conversational AI product launched November 2022. Now an ad-bearing surface in its own right (ChatGPT ad pilot launched 2025-2026 with Criteo partnership). 100+ ATDb news items reference ChatGPT ads, app marketplace, and partnerships.

OpenAI's self-serve advertising platform for ChatGPT, in public beta since 2026-05-05. CPC bidding ($3-$5 range), third-party measurement commitments, conversion tracking via OpenAI Pixel. Launch partners: Criteo (first AdTech partner), Dentsu, Omnicom, Publicis, WPP. Integration partners include Adobe, Kargo, Pacvue, StackAdapt, Invoca. This is OpenAI's native AdTech surface — the most strategically important AI-cluster development for AdTech in 2026, distinct from ChatGPT-the-product because the ads business has its own GTM, pricing, measurement story, and partner network.

Chattermill is an AI-powered customer experience management platform that transforms unstructured customer feedback into actionable business intelligence through advanced natural language processing (NLP) and machine learning technologies. The platform addresses a critical challenge for modern organizations: analyzing massive volumes of customer data across multiple touchpoints in real-time. By consolidating feedback from surveys, customer reviews, support tickets, social media channels, and ...

Check Point Software Technologies is a leading global provider of cybersecurity solutions for enterprises, governments, and service providers worldwide. The company specializes in comprehensive threat prevention technologies that protect customers from malware, ransomware, and other sophisticated cyber attacks across networks, cloud environments, mobile devices, and endpoints. With decades of experience in the cybersecurity industry, Check Point has established itself as a pioneer in unified ...

Checkout.com is a global payment technology company that provides comprehensive commerce infrastructure solutions designed to simplify and optimize digital payment processing for businesses worldwide. The company delivers an end-to-end platform that integrates payment gateway services, fraud prevention, risk management, and advanced analytics into a unified solution. This infrastructure enables merchants to accept, process, and manage payments across multiple channels and geographies while ma...

Cheetah Digital was an enterprise cross-channel customer engagement platform that helped brands build direct, loyalty-driven relationships with consumers through data, messaging, and personalization.

Cheil's India operating subsidiary. Expanded materially in October 2023 via the ₩7.3B acquisition of Mumbai-based influencer-marketing firm Digi-Influence. Source: alphabizkr (Cheil sustainability report secondary).

China-based joint venture serving as Cheil's principal operating arm in greater China, with offices in Beijing and Shanghai. Source: Cheil Sustainability Report 2014.

South Korea's largest advertising and marketing agency, founded January 17, 1973 as the in-house agency for Samsung Group. Listed on the Korea Exchange (KRX: 030000); Samsung Electronics holds ~28.4% as the largest shareholder, with National Pension Service at ~12%. World's 10th-largest agency network with FY2024 revenue of ₩4.34T (~$3.1B; +4.98% YoY) and 53 offices across 44 countries staffed by ~7,000 employees. Headquartered in Seoul. CEO Kim Jong-hyun (since December 2022). Samsung remains the anchor client; over-reliance on Samsung is documented as a qualitative strategic concern but no specific revenue-share percentage is publicly disclosed. Sources: Wikipedia + MarketScreener + Nasdaq.

Chemistry is an independent, full-service advertising agency that blends data-driven strategy with creative execution to help brands build meaningful connections with consumers.

CHEQ is an AI-powered cybersecurity company that provides a suite of solutions to protect businesses from online fraud, account takeover, and other digital threats.

Chewy's retail media network offering pet-focused advertising solutions to brands looking to reach highly engaged pet owners on the Chewy platform.

Chili Piper is a SaaS platform that automates meeting scheduling and lead routing for B2B sales teams, helping companies convert inbound leads faster.

Chitika was a search-targeted online advertising network that served billions of ads monthly to publishers outside of Google's ecosystem, specializing in intent-based display advertising.

Chocolate Platform is a social commerce and influencer marketing technology company that connects brands with content creators. The platform provides tools for influencer discovery, campaign management, and performance tracking with integrated e-commerce capabilities.

Choozle is a leading programmatic advertising platform that empowers digital marketers to plan, buy, and optimize digital ad campaigns across display, video, mobile, and social channels.

Choreograph is WPP's data company — formed April 2021 from the merger of Wunderman Thompson Data + GroupM MPlatform. Provides audience data, identity, and analytics infrastructure across all WPP agencies. Now part of WPP Media (post-2025 GroupM rebrand).

Chorus.ai is a leading conversation intelligence platform acquired by ZoomInfo that records, transcribes, and analyzes sales calls and meetings to help revenue teams improve performance.

ChurnZero is a leading Customer Success platform designed for subscription businesses to combat churn and drive growth. It provides a comprehensive suite of tools that enable customer success teams to understand customer health, automate personalized experiences, and engage proactively. The platform helps businesses manage the entire customer lifecycle, from onboarding to renewal, ensuring customers achieve value from their products.

Cimagine Media was an Israeli augmented reality startup that enabled consumers to visualize products in their real-world environments before purchasing, acquired by Snap Inc. in 2016.