Sizmek is a global leader in campaign management software solutions that enable digital advertisers and agencies to create, design, serve, and track digital ads.


Sizmek fuels digital advertising campaigns for advertisers and agencies around the world with cutting-edge technology to engage audiences across any screen. For the last 15 years, the online business that is now Sizmek has proudly pioneered industry firsts in digital advertising, including rich media, video, and online targeted advertising across several channels. Sizmek’s open ad management stack, Sizmek MDX, delivers the most creative and impactful multiscreen digital campaigns across mobile, display, rich media, video, and social, all powered by an unrivaled data platform. With New York City as its center of operations, Sizmek connects about 19,000 advertisers and 3,700 agencies to audiences, serving more than 1.3 trillion impressions a year. Sizmek operates on the ground in about 65 countries with a team of approximately 1,000 employees.

Insight & Approach

Over several years Vector has built a thesis in the advertising technology sector and we view Sizmek, a company we have known for many years, as a compelling platform to enter the space. In addition to benefiting from secular market tailwinds as advertising spend transitions from offline to digital media, Sizmek is well-positioned as the only independent and global platform. With increased scrutiny on data independence and compliance, brands and agencies are looking for standalone solutions and we believe Sizmek is poised to gain share in this growing industry.

Vector Value Add

Vector is working hard alongside the Sizmek management team to invest behind the company’s industry-leading open ad management platform, launch adjacent product offerings, and pursue strategic acquisitions.