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Companies

3,613 companies in the AdTech ecosystem

Havas Creative

Havas Creative

Creative Advertising & Brand Communications

Havas Creative is a global creative agency network within the Havas Group, delivering integrated brand communications, advertising campaigns, and creative strategy across all media channels.

Creative PlatformMarketing AgencyPuteaux, Île-de-France
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Havas Data

Data & Analytics / Audience Intelligence

Havas Data is the data and analytics division of Havas Group, providing data-driven marketing intelligence and audience solutions to power smarter media and creative decisions.

Attribution & AnalyticsCustomer Data PlatformParis, Île-de-France
Havas Edge

Havas Edge

Performance Marketing / Direct Response Advertising

Direct-response and performance-marketing agency within the Havas Creative Network. Offices in Carlsbad, Boston, and Portland.

Marketing AgencyPerformance MarketingCarlsbad, California
Havas Formula

Havas Formula

Public Relations & Integrated Communications

PR agency within the Havas Creative Network. Offices in El Segundo, New York, and San Diego.

Influencer MarketingMarketing AgencyEl Segundo, California
Havas Health Network

Havas Health Network

Healthcare Marketing & Pharmaceutical Advertising

Havas's health, pharma, and wellness communications sub-network. Restructured 2024-25 into three operating sub-units: Havas Life, Havas Lynx, and Jacques (named after Jacques Séguéla).

Vertical Marketing PlatformMarketing AgencyNew York, New York
Havas Life

Havas Life

Healthcare Marketing & Communications

Global health communications agency within the Havas Health Network.

Vertical Marketing PlatformMarketing AgencyNew York, New York
Havas London

Havas London

Creative Agency

Distinct creative agency within Havas Creative Network; standalone brand identity (lon.havas.com).

Havas Lynx

Havas Lynx

Healthcare Marketing & Communications

Digital health brand-transformation agency within the Havas Health Network. Strengthened with new North America leadership 2025.

Vertical Marketing PlatformMarketing AgencyManchester, England
Havas Media

Havas Media

Media Agency & Advertising Services

Havas Media is the global media network of Havas Group, offering integrated media planning, buying, and data-driven advertising solutions across 140+ countries.

Marketing PlatformMarketing AgencyParis, Île-de-France
Havas Play

Havas Play

Sports & Entertainment Marketing / Sponsorship

Sports, sponsorship, gaming, and entertainment-marketing arm within Havas Media. Rebranded from 'Havas Sports & Entertainment' to 'Havas Play'.

Marketing AgencyParis, Île-de-France
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Havas PR

Public Relations & Integrated Communications

Havas PR is a global public relations network operating under the Havas Group umbrella, delivering integrated communications, media relations, and reputation management services.

Marketing AgencyNew York, New York
Hawk Platform

Hawk Platform

Programmatic Advertising / DSP Aggregation

Hawk is a unified programmatic buying platform that aggregates multiple DSPs into a single interface, allowing agencies and brands to plan, activate, and report across channels including display, video, audio, DOOH, and CTV from one seat. It is widely used by independent agencies in Europe.

Demand Side Platform (DSP)Paris, Île-de-France
HBO

HBO

Premium Cable TV

Home Box Office (HBO) is the premium cable TV brand under Warner Bros. Discovery. Launched 1972. Notable shows: Game of Thrones, The Sopranos, Succession, The Last of Us. Distinct from HBO Max streaming (the streaming service brand).

Connected TV Platform
HBO Max

HBO Max

Premium SVOD / Streaming

HBO Max is Warner Bros. Discovery's flagship premium streaming service. Complex naming history: HBO Max launched May 2020 → renamed Max May 2023 (when Discovery+ was merged in) → renamed BACK to HBO Max July 9, 2025. Major CTV ad surface (ad-supported tier launched June 2021).

Healthgrades

Healthgrades

Healthcare Marketing Technology

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

Marketplace TechnologyLocal AdvertisingDenver, Colorado
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Healthline FindCare

Healthcare Marketing & Lead Generation

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

Marketplace TechnologyLocal AdvertisingSan Francisco, California
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Healthline Media

Health & Wellness Publishing/Advertising

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

Contextual AdvertisingNative AdvertisingSan Francisco, California
Heap

Heap

Acquired

Product Analytics / Digital Experience Analytics

Heap is a digital insights platform that automatically captures every user interaction on web and mobile apps, eliminating the need for manual event tracking instrumentation.

Data & AnalyticsAttribution & AnalyticsSan Francisco, California
Heap Analytics

Heap Analytics

Acquired

Product Analytics / Digital Analytics

Heap is a digital insights platform that automatically captures user interactions on websites and mobile apps, enabling product analytics without manual event tracking.

Data & AnalyticsAttribution & AnalyticsSan Francisco, California
Heap Premier

Heap Premier

Digital Analytics & Business Intelligence

Heap Premier is the enterprise-tier offering of Heap's advanced digital analytics platform, designed specifically for large-scale organizations that require comprehensive user behavior intelligence without manual event tracking constraints. The platform's revolutionary approach centers on automatic event capture technology that retroactively collects and indexes every user interaction across digital properties, enabling analysts to query historical data for events that weren't explicitly defi...

Data & AnalyticsMarketing AnalyticsSan Francisco, California, USA
Hearts & Science

Hearts & Science

Media Agency Network

Data-led media agency built for AT&T account 2016; specialist scale, smaller than OMD/PHD. Operates under Omnicom Media post-merger.

Heat

Heat

Creative Agency

San Francisco creative agency, founded 2004, acquired by Deloitte Digital Feb-Mar 2016 (11th Deloitte Digital acquisition). Multi-Cannes-Lions winner. Operates under Heat brand within Deloitte Digital; opened NYC office post-acquisition. Sources: PR Newswire + The Drum + AdWeek.

Hedera Hashgraph

Hedera Hashgraph

Blockchain & Distributed Ledger Technology

Hedera Hashgraph is an enterprise-grade public distributed ledger technology platform that provides a fundamentally different approach to blockchain consensus mechanisms. Unlike traditional blockchain architectures, Hedera utilizes the patented Hashgraph consensus algorithm, which enables high-throughput transaction processing with low latency, fair transaction ordering, and enhanced security guarantees. The platform is designed to support a wide range of decentralized applications, including...

Blockchain AdvertisingDallas, Texas, United States
Heepsy

Heepsy

Marketing Technology - Influencer Marketing

Heepsy is a specialized influencer marketing platform that empowers brands, agencies, and marketers to discover, analyze, and evaluate influencers across Instagram and YouTube. The platform combines advanced search functionality with comprehensive analytics capabilities, enabling users to filter potential influencer partners based on critical criteria including audience demographics, engagement rates, follower authenticity, geographic location, and niche categories. By providing transparent a...

Influencer Marketing