33Across specializes in helping publishers monetize their content through programmatic advertising solutions. The company provides a platform that connects advertisers and publishers, facilitating the sale of video and display ads across various devices. With its headquarters in Sunnyvale, California, 33Across operates globally, with offices in New York, Chicago, Los Angeles, the UK, India, and Japan​.

One of 33Across’s key innovations is Lexicon, an identity solution designed to navigate the challenges posed by the decline of third-party cookies. Lexicon enables publishers to monetize their content effectively without relying on these cookies, ensuring privacy compliance and maintaining ad revenue. The solution has demonstrated significant success, with reports of substantial increases in cookieless revenue and improved ad fill rates for publishers​.