Leon Zemel

X Plus One Solutions, Inc. offers integrated and open software for data-driven digital marketing. Its products include origin data management platform, which centralizes audience creation, computer learning, tag management, callouts, and triggers. The company was founded by Ted Shergalis in 1999 and is headquartered in New York, NY.

Digitas, Inc. provides digital and interactive marketing services to the Internet-based and e-commerce companies. The company also provides cross-channel communications to clients. Its services include customer acquisition, cross-sell, loyalty, affinity and customer care operations. The company was founded by Robert L. Cosinuk in 1999 and is headquartered in Boston, MA.

Wunderman, Inc. provides marketing consultancy services. It offers offers data, analytics, insight services including business and data strategy, target audience assessment, Omni-channel management, model development, investment optimization, test and learn, insight development and communication services. The company was founded by Lester Wunderman in 1958 and is headquartered in New York, NY.

DoubleVerify, Inc provides online media verification solutions. It offers technology solutions for agencies, marketers, publishers, and ad networks running online ad campaigns. The firm also provides audit and verification of online advertising transactions. The company was founded by Oren Netzer and Alex Liverant in 2008 and is headquartered in New York, NY.

MediaMath, Inc. operates programmatic marketing technology which provides digital advertising services. It offers enterprise software which is used to launch, analyze, and optimize digital advertising campaigns across displays, native, mobile, video, audio, social, digital out of home, and advanced television formats. The company was founded by Joseph Zawadzki, Gregory Dale Williams, and Erich Wasserman in 2007 and is headquartered in New York, NY.