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Companies

3,613 companies in the AdTech ecosystem

GeoEdge

GeoEdge

Acquired

Ad 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.

Ad Fraud PreventionVerification PlatformNew York, New York
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Geometry Global

Merged

Brand 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.

Marketing AgencyNew York, New York
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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.

Marketing AgencyAuburn Hills, Michigan
Geospock

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...

Data & AnalyticsLocation-Based AdvertisingCambridge, England
GetFeedback

GetFeedback

Customer Experience Management

Customer experience and feedback management platform that enables businesses to collect, analyze, and act on customer feedback across multiple channels.

Data & AnalyticsCustomer EngagementSan Francisco, California
GetResponse

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.

Email MarketingMarketing PlatformGdansk, Pomeranian Voivodeship
Getty Images

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...

Creative PlatformMarketplace TechnologySeattle, Washington, USA, Washington
GfK

GfK

Market Research & Consumer Insights

Global market research and consumer insights company providing data analytics and intelligence across retail, media, and consumer behavior.

Data & AnalyticsAttribution & AnalyticsNuremberg, Bavaria
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Ghostery

Privacy Technology / Ad-Blocking

Privacy-focused browser extension and software company that blocks ads, trackers, and provides enhanced online privacy protection for consumers.

Privacy TechnologyAd Fraud PreventionBerlin
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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.

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Gigya

Acquired

Customer 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.

Customer Data PlatformPrivacy & Consent ManagementSan Jose, California
Gimlet Media

Gimlet Media

Defunct

Podcast Production/Audio Content

Gimlet Media was a podcast production company and network that created narrative podcasts and was acquired by Spotify in 2019.

Audio AdvertisingContent DiscoveryBrooklyn, New York
Giphy

Giphy

Acquired

Content Marketing & Native Advertising

A leading platform for discovering, creating, and sharing GIFs and short-form animated content, now owned by Shutterstock.

Native AdvertisingContent DiscoveryNew York, New York
GitHub

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.

Marketing TechnologySan Francisco, California
GitHub Copilot

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

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.

Marketing TechnologySan Francisco, California
Gladly

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 channels—including voice, email, SMS, chat, and social media—enabling support teams to deliver seamless, contextual, and personalized service experiences. This innovative methodology eliminates the fragmentation...

Customer Engagement
Glassbox

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.

Data & AnalyticsAttribution & AnalyticsLondon, England
Glassdoor

Glassdoor

Acquired

Recruitment 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.

Marketing PlatformCustomer AcquisitionSan Francisco, California
Glew.io

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...

Data & AnalyticsE-commerce Marketing
GoAccess

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...

Data & Analytics
GoDaddy Ads

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.

Vertical Marketing PlatformTempe, Arizona
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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.

Marketing TechnologyOrlando, Florida
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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.

Marketing AgencyChicago, Illinois