Companies

Alliance Digitale is France's digital marketing trade association and the French member of IAB Europe, which lists it as "Alliance Digitale (IAB France)". It was formed when IAB France and MMA France merged in June 2022, and DMA France later joined. It advocates on issues such as Apple's ATT, Privacy Sandbox and EU privacy rules for about 300 member companies. Arthur Millet is its director general and Nicolas Rieul its president.

Arbitron was the US radio audience-measurement company, founded as the American Research Bureau (ARB), whose Area of Dominant Influence defined local TV markets. Nielsen acquired it on September 30, 2013 and renamed it Nielsen Audio.

The BBC (British Broadcasting Corporation) is the UK's public service broadcaster that operates BBC Studios and BBC Advertising, offering premium brand-safe inventory across its global digital and broadcast platforms.

Behance is Adobe's creative portfolio platform where designers, artists, and creative professionals showcase their work and discover creative talent.

Charter Communications, Inc. is the second-largest cable operator in the United States, providing video, internet, voice, and mobile services under the Spectrum brand. Headquartered in Stamford, Connecticut. Co-owner (with Comcast and Cox) of the Ampersand multichannel ad-sales JV; its ad-sales arm Spectrum Reach is the operating subsidiary.

Trade publication covering media and marketing, founded in 2008 by CEO Nick Friese; its parent, Digiday Media, also publishes Modern Retail and Glossy.

Findaway was a digital audiobook distribution and technology company. Spotify acquired it in June 2022, and on August 1, 2025 it was carved out of Spotify and relaunched as the independent company INaudio.

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.

IAB Australia is the peak trade body for Australia's digital advertising industry, with about 175 member companies. It publishes standards, commissions ad-spend research and runs member councils. Gai Le Roy is CEO, and Suzie Cardwell of Nine chairs the board.

IAB New Zealand is the industry body connecting New Zealand's advertisers, agencies, publishers and ad tech companies. It runs member councils, including an emerging-technology group that tracks AI tools. Angelina Farry has been its CEO since January 2024.

Letgo was a popular mobile classifieds marketplace for buying and selling secondhand goods locally, which merged with OfferUp in 2020 to form the largest mobile C2C marketplace in the US.

London Stock Exchange Group — recorded in ATDb as the acquirer/parent of one or more AdTech companies (s375 lineage backfill).

Monotype — recorded in ATDb as the acquirer/parent of one or more AdTech companies (s375 lineage backfill).

Neeva was an ad-free, privacy-focused subscription search engine founded by former Google executives that shut down in 2023 after being acquired by Snowflake.

Neustar MarketShare is an enterprise marketing analytics platform offering advanced marketing mix modeling, multi-touch attribution, and unified measurement solutions for global brands.

3D mapping startup acquired by Snap 2021 for $7.6M. Tech contributed to Snap Map AR features.

Data security company specializing in data discovery, classification and protection. Not an adtech company: listed in ATDb because it acquired Dataguise in November 2020.

Skydance DTC is Skydance's direct-to-consumer streaming division, home of HBO Max and Paramount+, led by co-chairs Casey Bloys and JB Perrette after Skydance's acquisition of Warner Bros. Discovery closed on October 6, 2026.

SugarCRM is an AI-driven CRM platform that helps businesses build stronger customer relationships through intelligent sales, marketing, and service automation.

TelevisaUnivision is the world's leading Spanish-language media company, operating a vast portfolio of TV networks, streaming platforms, and digital properties reaching Hispanic audiences across the US and Latin America.

The Washington Post is a legacy media powerhouse that has evolved into a significant AdTech player, developing its own proprietary advertising technology stack used both internally and licensed to other publishers.

This Old House Ventures is the home-improvement media brand acquired by Roku from TZP Group in March 2021 for $97.8M. Includes the long-running PBS show "This Old House", thisoldhouse.com, magazine, and digital properties. Provides Roku content + branded-content opportunities.

Weebly is a user-friendly website builder and eCommerce platform, now operating as part of Square (Block, Inc.), enabling small businesses and individuals to create professional websites and online stores.

XX Artists was a creator-focused talent management and brand partnership platform that has since rebranded, connecting social media influencers with advertisers for sponsored content campaigns.