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Companies

3,723 companies in the AdTech ecosystem

Greenbids

Greenbids

Sustainable Programmatic Advertising / Supply Path Optimization

Greenbids is a sustainable programmatic advertising platform that uses AI to reduce the carbon footprint of digital advertising by optimizing bid stream efficiency and eliminating wasteful bid requests. The company helps publishers and DSPs reduce infrastructure costs while lowering the environmental impact of programmatic auctions.

Programmatic PlatformParis, Île-de-France
Grey

Grey

Advertising Agency Network

Grey is a global advertising and marketing agency network that is part of WPP, providing creative, digital, and integrated marketing services to major brands worldwide.

Data & AnalyticsMarketing AnalyticsNew York, New York
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Grey Dublin

Creative Advertising & Brand Communications

Grey Dublin is the Irish office of Grey Group, a global creative advertising agency delivering integrated marketing and brand communications for major multinational clients.

Marketing AgencyDublin, County Dublin
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Grey Health

Healthcare Advertising & Marketing Services

Grey Health is a specialized healthcare advertising agency and consultancy offering integrated marketing, media, and creative services to pharmaceutical, biotech, and health brands.

Vertical Marketing PlatformMarketing AgencyNew York, New York
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Grey London

Creative Advertising Agency

Grey London is a leading full-service creative advertising agency, part of the global Grey network, known for delivering award-winning campaigns across brand strategy, creative, and integrated communications.

Marketing AgencyLondon, England
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Grey Paris

Creative Advertising & Integrated Marketing

Grey Paris is the French arm of Grey Group, a global creative advertising agency delivering integrated campaigns across traditional and digital media for major brands.

Paris, Île-de-France
GRIN

GRIN

Influencer Marketing Technology

GRIN is a leading player in the influencer marketing sector of the advertising technology ecosystem.

Influencer MarketingPerformance MarketingSan Francisco, California
Groove

Groove

Acquired

Sales Engagement Platform

Groove was a sales engagement platform that helped sales teams automate outreach and manage customer relationships through Salesforce integration.

Customer AcquisitionMarketing AutomationSan Francisco, California
GroundTruth

GroundTruth

Location-Based Advertising

GroundTruth is a leading location-based marketing and advertising technology company. It leverages real-world consumer behavior data to help businesses reach their target audiences with relevant messages at the right time and place, driving measurable results for campaigns through its self-serve platform.

Customer AcquisitionLocation-Based AdvertisingNew York, New York
GroupM

GroupM

Rebranded

Media Investment & Planning

GroupM is the world's largest media investment company, managing over $60 billion in annual media spend across multiple agency brands including Mindshare, Wavemaker, EssenceMediacom, and mSix&Partners.

Attribution & AnalyticsMarketing AgencyLondon, New York
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GroupM Japan

Media Investment & Advertising Agency

GroupM Japan is the leading media investment and management group in Japan, overseeing WPP's portfolio of media agencies including Mindshare, MediaCom, Wavemaker, and EssenceMediacom.

Attribution & AnalyticsMarketing AgencyTokyo
Grow

Grow

Business Intelligence & Analytics

Business intelligence and data visualization platform that helps companies consolidate and visualize metrics from multiple data sources in real-time dashboards.

Data & AnalyticsMarketing AnalyticsProvo, Utah
Growmatik

Growmatik

Marketing Automation & Personalization

Growmatik is an AI-powered marketing automation platform specifically designed for WordPress websites. It enables businesses to personalize their website content, emails, and pop-ups in real-time based on individual user behavior, aiming to boost conversions and engagement.

AI-Powered PlatformE-commerce Marketing
Growth Rock

Growth Rock

Marketing Technology Services / Conversion Rate Optimization

Growth Rock is a specialized Conversion Rate Optimization (CRO) agency operating at the strategic convergence of marketing technology, user experience design, and data science. The company serves digital-first businesses by implementing systematic, data-driven experimentation frameworks designed to accelerate growth through the optimization of digital properties. Their methodology emphasizes rapid testing velocity combined with statistical rigor, enabling clients to execute multiple experimen...

Marketing TechnologyMarketing Agency
GrowthBook

GrowthBook

Product Experimentation and Feature Management

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.

Data & AnalyticsAI-Powered PlatformNew York, New York
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Grubhub Ads

Retail Media & Food Delivery Advertising

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.

Retail Media PlatformPerformance MarketingChicago, Illinois
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GSD&M

Full-Service Advertising Agency

GSD&M is an Austin-based full-service advertising agency known for purpose-driven creative work and long-standing relationships with major national brands.

Marketing AgencyAustin, Texas
Gumball

Gumball

Creative Management Platform / Dynamic Creative Optimization

Creative Management PlatformAI-Powered PlatformNew York, New York
GumGum

GumGum

Contextual Advertising & Intelligence

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...

Contextual AdvertisingVerification & MeasurementSanta Monica, California
GumGum Sports

GumGum Sports

Sports Marketing Analytics & Measurement

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.

Verification & MeasurementSanta Monica, California
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Gummicube

App Store Optimization (ASO) / Mobile Marketing

Gummicube is a leading App Store Optimization (ASO) platform and agency that helps mobile app publishers maximize organic discovery and downloads through data-driven metadata and creative optimization.

Mobile Ad PlatformMobile MarketingSan Jose, California
Gumroad

Gumroad

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.

Commerce TechnologyMarketplace Technology
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Gut

Creative Advertising Agency

GUT is an independent global creative agency known for bold, culturally resonant advertising that blends strategic thinking with fearless creativity.

Miami, Florida
GWI

GWI

Audience Intelligence and Consumer Insights

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.

Data & AnalyticsCustomer Data PlatformLondon, England