Companies

Ascend.io provides a Dataflow Automation platform that helps data teams build, scale, and observe their data pipelines with less effort. It unifies the entire data pipeline lifecycle, from ingestion to transformation to delivery, enabling faster development and more reliable data products. The platform aims to simplify complex data engineering tasks and improve data reliability.

Aspire is a comprehensive influencer marketing automation platform that transforms how brands manage creator partnerships and social commerce strategies. The platform consolidates the entire influencer marketing lifecycle—from discovery and vetting to campaign management, content tracking, and ROI measurement—into a unified solution, eliminating the operational complexity and manual effort traditionally associated with managing large-scale influencer programs across multiple disconnected ...

AspireIQ was an influencer marketing platform that connected brands with content creators for authentic marketing campaigns before being acquired by Aspire in 2020.

Assembly is the global media agency under Stagwell Inc., formed by merging Assembly + ForwardPMX into a single integrated media-buying and planning network. ~1,900 employees across 30+ offices in 20+ countries. Distinct from Assembly Industries (the Advent-backed e-commerce software platform that acquired Pacvue in 2021) despite the shared brand name.

Global e-commerce software platform backed by Advent International. Acquired Pacvue in October 2021 (nine-figure deal, days after Advent investment round boosted Assembly to $1B+ valuation). Portfolio includes Pacvue, Helium 10, and Refersion. Distinct from "Assembly" the Stagwell media agency despite shared brand name.

Assertive Yield is a real-time revenue analytics and yield management platform built specifically for publishers and SSPs. The platform provides granular session-level data, revenue forecasting, and optimization tools to help publishers maximize programmatic ad revenue. It integrates with major ad servers and bidding solutions to provide unified reporting across demand sources.

The Associated Press (AP) is a global nonprofit news agency that licenses premium journalism, real-time news content, and structured data feeds to publishers, broadcasters, and digital platforms worldwide.

Astronomer is the commercial steward of Apache Airflow, providing a modern data orchestration platform. Their flagship product, Astro, offers a managed service for Apache Airflow, enabling enterprises to build, run, and observe data pipelines at scale in the cloud.

AT Internet (now Piano Analytics) was a leading European web analytics platform known for its privacy-first approach and robust data quality, serving major enterprises across media, retail, and finance.

AT&T Inc. is a major player in the AdTech ecosystem, leveraging its extensive telecommunications infrastructure and media assets to offer a range of advertising-related products and services. As the former parent company of the Xandr advertising platform, AT&T has deep expertise in data-driven, targeted advertising solutions. Xandr, which was recently acquired by Microsoft, provided AT&T with a sophisticated programmatic advertising exchange and advanced audience targeting capabilities. Addit...

AT&T's addressable advertising division delivers targeted TV advertising solutions across linear and streaming platforms using household-level data.

Ataccama is a global software company offering a unified platform for data management and governance. Its AI-powered solution integrates data quality, master data management, data governance, and data catalog capabilities, enabling organizations to achieve trusted data and make informed business decisions.

Athena Studio was an AI-powered creative optimization platform that helped advertisers automate and scale personalized ad creative production.

Atlas Solutions was an ad server acquired by Facebook from Microsoft in 2013 (~$100M). Used to challenge Google DoubleClick in cross-publisher ad serving + measurement. Shut down by Facebook 2018 as Facebook refocused on its owned-and-operated properties + Audience Network rather than open-web ad serving.

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

Atomic Reach was an AI-powered content intelligence platform that helped marketers optimize content for audience engagement and conversion before being acquired.

Consumer-permissioned commerce data and advertising measurement company.

US media agency launched by Cheil North America in 2024 with $500M+ in media billings, 150 staff, and 80 clients. Combines McKinney's media-buying arm with the 2023-acquired Lockard & Wechsler Direct (US performance media). Operates as Cheil's US media-anchor brand. Sources: LWDirect launch press + Adweek.

Attentive is a leading personalized mobile messaging platform that helps brands acquire, engage, and retain customers through SMS and email marketing. It provides tools for businesses to create targeted campaigns, automate customer journeys, and drive revenue.

New Zealand-based marketing and communications services holding company. Acquired Deutsch New York and Hill Holliday from Interpublic Group (IPG) in January 2024.

Attributio is a marketing attribution platform designed to help businesses understand the true impact of their marketing efforts. It provides multi-touch attribution models and customer journey insights, enabling companies to optimize ad spend and improve return on investment.

Attribution, Inc. provides a comprehensive marketing attribution platform that helps businesses accurately measure the ROI of their marketing campaigns. Their software unifies data across various channels to offer multi-touch attribution insights, enabling marketers to optimize spend and improve performance.

Audacy is a leading multi-platform audio content and entertainment company operating one of the largest radio broadcasting networks in the United States. The company owns and operates a diverse portfolio of radio stations across major markets, complemented by a robust digital streaming platform and extensive podcast network. Audacy's stations span multiple formats including news, sports, music, and talk radio, reaching millions of listeners daily through both traditional broadcast and digital...

Audible is Amazon's audiobook + spoken-word entertainment subsidiary. Acquired by Amazon January 2008 for ~$300M. Includes Audible Originals, podcasts, and audio entertainment. Has expanded ad inventory in podcasts since 2023.