Companies
3,613 companies in the AdTech ecosystem
GeoEdge
AcquiredAd Security & Verification
GeoEdge is a leading ad security and verification platform that protects publishers, SSPs, and ad networks from malicious ads, privacy violations, and quality issues in real time.
Geometry Global
MergedBrand Activation & Shopper Marketing
Geometry Global was WPP's global brand activation and shopper marketing network, specializing in commerce, experiential, and promotional marketing across 56 countries.
George P. Johnson
Experiential Marketing & Brand Events
George P. Johnson (GPJ) is a global experiential marketing agency specializing in brand experiences, events, and live engagements that connect brands with audiences at scale.
Geospock
Location Intelligence / Geospatial Analytics
Geospock is an enterprise-focused spatial big data analytics company that delivers location intelligence solutions at massive scale. The company's core platform enables organizations to ingest, process, analyze, and visualize billions of geospatial data points in real-time, addressing the growing demand for location-based insights across multiple industries. By combining distributed computing architectures with advanced spatial algorithms, Geospock provides organizations with the capability t...
GetFeedback
Customer Experience Management
Customer experience and feedback management platform that enables businesses to collect, analyze, and act on customer feedback across multiple channels.
GetResponse
Marketing Automation & Email Marketing
GetResponse is a leading email marketing and marketing automation platform that helps businesses of all sizes create, send, and track effective email campaigns to grow their customer base and revenue.
Getty Images
Visual Content Licensing and Stock Photography
Getty Images is a global leader in visual content creation and licensing, providing stock photography, editorial images, video footage, and music to creative professionals, businesses, and media organizations worldwide. Founded in 1995 by Mark Getty and Jonathan Klein, the company has built one of the world's most comprehensive and diverse visual content libraries, featuring hundreds of millions of images and videos from professional photographers, videographers, and content creators. Getty I...
GfK
Market Research & Consumer Insights
Global market research and consumer insights company providing data analytics and intelligence across retail, media, and consumer behavior.
Ghostery
Privacy Technology / Ad-Blocking
Privacy-focused browser extension and software company that blocks ads, trackers, and provides enhanced online privacy protection for consumers.
Giant Machines
Digital Product & Engineering
New York digital product and software-engineering company founded 2015, acquired by Deloitte Jan 22 2024. Bolsters both Deloitte Digital and Deloitte Engineering. Sources: PR Newswire + Deloitte US press release.
Gigya
AcquiredCustomer Identity and Access Management (CIAM)
Gigya was a Customer Identity and Access Management (CIAM) platform that helped brands manage consumer identities, social login, and consent — acquired by SAP in 2017.
Gimlet Media
DefunctPodcast Production/Audio Content
Gimlet Media was a podcast production company and network that created narrative podcasts and was acquired by Spotify in 2019.
Giphy
AcquiredContent Marketing & Native Advertising
A leading platform for discovering, creating, and sharing GIFs and short-form animated content, now owned by Shutterstock.
GitHub
Developer Tools & DevOps Platform
GitHub is the world's leading software development platform providing Git-based version control, code collaboration, and DevOps tools for developers and enterprises.
GitHub Copilot
AI Developer Tools / Code Generation
AI-powered pair programmer launched June 2022 by GitHub (Microsoft) in partnership with OpenAI. Integrates into IDEs (VS Code, JetBrains, Visual Studio, Neovim) and provides inline code suggestions, chat-based coding assistance, and now agent-mode autonomous coding (Copilot Workspace, 2024+). Microsoft's flagship AI developer product.
GitLab
DevOps Platform / Software Development Tools
GitLab is an open-source platform that provides a complete DevOps toolchain, including tools for source code management, continuous integration, and deployment. While not primarily an AdTech/MarTech company, GitLab's tools can be used to support various marketing and advertising workflows.
Gladly
Customer Service Software / Customer Experience Management
Gladly is a customer service software platform that revolutionizes traditional customer support by replacing ticket-based systems with a people-centered, conversational approach. The platform creates a single, lifelong conversation thread for each customer across all communication channelsâincluding voice, email, SMS, chat, and social mediaâenabling support teams to deliver seamless, contextual, and personalized service experiences. This innovative methodology eliminates the fragmentation...
Glassbox
Digital Experience Analytics
Glassbox provides a digital experience analytics platform that helps businesses understand and improve their customer journeys across all digital channels. It uses session replay, AI-powered insights, and real-time data to identify friction points and optimize conversions. The platform enables businesses to gain deeper user behavior insights.
Glassdoor
AcquiredRecruitment Marketing & Employer Branding
Glassdoor is a leading job and recruiting marketplace where employees anonymously review companies, salaries, and interviews, helping job seekers make informed career decisions.
Glew.io
E-commerce Analytics & Business Intelligence
Glew.io is a specialized e-commerce analytics and business intelligence platform that serves as a centralized data hub for online retailers managing multiple sales channels and marketing platforms. The company addresses the critical challenge of data fragmentation across disparate systems including shopping carts, payment processors, email marketing tools, advertising platforms, and fulfillment services. Through pre-built integrations and automated data consolidation, Glew.io enables merchant...
GoAccess
Web Analytics & Server Monitoring
GoAccess is an open-source web log analytics solution designed for real-time monitoring and analysis of web server traffic. Operating as a terminal-based interactive viewer, it provides system administrators, developers, and DevOps professionals with immediate insights into traffic patterns, visitor behavior, and performance metrics without requiring complex setup or external dependencies. The software processes log files directly on servers, delivering fast, lightweight analysis while mainta...
GoDaddy Ads
SMB Marketing Automation
GoDaddy operates an advertising platform for small businesses, offering social media advertising, search marketing, and email marketing tools. The platform is integrated with GoDaddy's website and domain services to help small businesses manage their digital marketing.
Golf Channel
Sports Media & Advertising
Golf-focused cable channel; anchors Versant's USA Sports vertical alongside GolfNow + GolfPass. Versant Media Group subsidiary post-Jan 2026 spinoff.
Golin
Public Relations & Integrated Communications
Golin is a global public relations and integrated communications agency known for its data-driven approach and 'Relevance Model' framework, serving major brands across earned, owned, paid, and shared media.