Companies

eBay is a global e-commerce marketplace and retail media network offering advertisers access to hundreds of millions of active buyers through its self-serve and managed advertising solutions.

eBay's retail media advertising platform enabling brands and sellers to reach high-intent shoppers across eBay's global marketplace through sponsored listings and display advertising.

eClincher is a leading player in the social media management sector of the advertising technology ecosystem.

Ecosia is a search engine that uses ad revenue to plant trees, positioning itself as an environmentally-focused alternative to traditional search engines.

E-commerce platform that enables businesses to add online stores to existing websites, social media pages, and marketplaces.

Düsseldorf digital agency acquired by IBM March 2016 and rebranded into IBM iX. Brand sunset in joint 2018 announcement with Aperto. Sources: IBM newsroom acq announcement + 2018 joint rebrand.

Edelman is the world's largest independent public relations and communications firm, offering integrated marketing, PR, and brand strategy services to global enterprises.

Edgecast was a leading CDN and edge cloud platform provider that delivered content delivery, security, and streaming solutions before being acquired and eventually rebranded as part of Limelight Networks' transformation into Edgio.

Edgio is a global edge-enabled software platform spanning content delivery, web applications, and edge video. The company was formed in June 2022 when Limelight Networks completed its acquisition of Yahoo's Edgecast (valued at $300M) and rebranded the combined entity. Edgio operates a global CDN footprint and serves AdTech publishers requiring low-latency video delivery and edge security.

EDO is a TV outcome measurement company that links real-time engagement signals (search, social, web visits) to TV ad creative, brand, and program data. Founded in 2015 by Daniel Nadler and actor-investor Edward Norton; headquartered in New York City. Its measurement product is integrated into NBCU's Performance Insights Hub (CES 2026).

Effectv, the television advertising sales division of Comcast, rebranded to Comcast Advertising's Media Solutions in April 2025, having connected advertisers with targeted TV audiences across cable and streaming platforms.

Elastic is a leading provider of search-powered analytics infrastructure solutions, best known for its flagship Elastic Stack (formerly ELK Stack) comprising Elasticsearch, Logstash, and Kibana. The company delivers enterprise-grade search, observability, and security solutions that enable organizations to extract actionable insights from massive volumes of structured and unstructured data in real-time. Elastic's distributed, RESTful search and analytics engine powers mission-critical applica...

Elastic Email is a cloud-based email delivery and marketing automation platform that serves as a comprehensive solution for businesses requiring both transactional email infrastructure and marketing campaign capabilities. Founded as an alternative to premium email service providers, the company has positioned itself as a cost-effective yet powerful option for organizations of all sizes, from startups to enterprises. The platform combines SMTP relay services, RESTful API integration, and a ful...

Elastic Path is a leading provider of headless commerce solutions that enables enterprises and mid-market businesses to create flexible, scalable, and personalized shopping experiences across multiple channels. By decoupling the front-end presentation layer from the back-end commerce engine through an API-first architecture, Elastic Path empowers organizations to innovate rapidly on customer-facing experiences while maintaining robust commerce functionality. The platform allows businesses to ...

Eloqua is Oracle's B2B marketing automation platform, enabling enterprise marketers to orchestrate complex, data-driven campaigns across multiple channels.

EmailOctopus is an email marketing service designed to help businesses and creators send newsletters, marketing campaigns, and automated emails. It offers an intuitive platform with features like drag-and-drop email builders, automation, and analytics, often highlighted for its affordability and ease of use.

EmailSuccess is a specialized enterprise email marketing software provider that occupies a unique niche in the marketing technology landscape by focusing exclusively on self-hosted, on-premise deployment solutions. Unlike the dominant cloud-based SaaS platforms that characterize the email marketing sector, EmailSuccess enables organizations to maintain complete data sovereignty and infrastructure control by deploying comprehensive email marketing capabilities within their own security perimet...

Leading market research and data analytics firm providing insights, forecasts, and statistics on digital marketing, media, and commerce trends.

Emarsys is an omnichannel customer engagement platform that enables personalized marketing automation across email, mobile, social, and web channels.

Mobile advertising platform that monetized Android apps through user engagement with ads and offers, acquired by Verve Group in 2021.

Emma was an email marketing platform that provided marketing automation and campaign management tools for businesses before being acquired by CM Group in 2022.

Emodo is Ericsson's advertising platform that leverages telecom data for audience targeting and measurement. The company provides location intelligence, audience insights, and programmatic advertising solutions using carrier-grade data.

Card-linked offer platform that enables brands to deliver personalized offers and measure in-store purchases through payment card data.

EMX Digital is a supply-side platform (SSP) and header bidding technology provider that helps publishers maximize programmatic advertising revenue through advanced yield optimization.