Companies

GrowthBook is an open-source platform for feature flagging and A/B testing, designed to empower engineering teams to ship features faster and make data-driven product decisions. It provides tools for managing feature rollouts, running experiments, and analyzing results directly from code.

Grubhub Ads is the advertising platform of Grubhub that enables restaurants and CPG brands to promote their offerings through sponsored placements within the Grubhub food delivery marketplace.

A team communication and gaming community platform acquired by Roblox in 2021, not an AdTech company.

GumGum is a contextual intelligence technology company that specializes in computer vision and natural language processing to analyze and understand digital content. Founded in 2008, the company pioneered contextual advertising solutions that move beyond traditional cookie-based targeting by analyzing the actual content of web pages, images, and videos to deliver more relevant advertising experiences. GumGum's proprietary artificial intelligence technology enables brands and publishers to und...

GumGum Sports is a computer vision and AI company that measures brand exposure in sports broadcasts and live events by detecting logos, signage, and brand placements in video content. They provide sponsorship valuation and media measurement for sports marketing.

Gumroad is an online platform that empowers creators to sell digital products, subscriptions, and physical goods directly to their audience. It provides a simple storefront, payment processing, and audience management tools, enabling creators to build and monetize their independent businesses.

GWI (formerly GlobalWebIndex) is a leading audience insights company that provides data and analytics on consumer behavior, attitudes, and trends. It helps marketers, agencies, and media companies understand their target audiences to inform strategy, content creation, and media planning.

H2O.ai is an enterprise AI cloud platform company that provides open-source and commercial machine learning solutions, including automated machine learning (AutoML) capabilities.

Habu is a leading provider of enterprise-grade data management and advanced analytics solutions, helping organizations unlock the power of their data to drive informed decision-making.

Japan's second-largest advertising and marketing agency, offering integrated marketing communications, creative services, and digital advertising solutions.

HappyFox is a leading provider of customer support and help desk software solutions designed to streamline customer service operations for businesses of all sizes. Founded with a mission to simplify customer support management, the company offers a comprehensive suite of tools including advanced ticketing systems, live chat capabilities, knowledge base management, and intelligent customer service automation. These solutions enable organizations to deliver exceptional customer experiences acro...

Harmonic is a video delivery infrastructure company providing software and hardware solutions for cable operators, satellite, telco, and media companies to deliver broadcast and OTT video services.

Hashoff was an influencer marketing platform that connected brands with social media creators for authentic content creation and distribution.

HasOffers, operating under the TUNE brand, is a leading Software-as-a-Service (SaaS) provider specializing in partner marketing technology solutions that power affiliate and influencer marketing programs at enterprise scale. Founded as a performance marketing platform, TUNE has evolved into comprehensive infrastructure serving the AdTech ecosystem, enabling advertisers, publishers, and networks to manage, track, and optimize partnership-driven revenue generation. The platform's core capabilit...

Havas is one of the world's largest global communications and advertising groups, offering integrated media, creative, and health communications services across more than 100 countries.

Havas Media is a global media planning and buying agency network that is part of Havas Group, offering integrated media solutions across traditional and digital channels.

Healthgrades is a leading online platform connecting patients with healthcare providers through physician ratings, reviews, and appointment scheduling.

Healthline FindCare is a healthcare provider directory and patient acquisition platform that connects consumers with healthcare providers through Healthline Media's health information network.

Healthline Media is a leading digital health publisher providing consumer health information and operating advertising-supported health content websites.

Heap is a digital insights platform that provides automatic event tracking and analytics for web and mobile applications, enabling product teams to understand user behavior without manual instrumentation.