Michael Rubenstein is Co-Founder and Co-CEO of Firsthand, an AI-powered Brand Agent platform transforming how companies attract and engage consumers. In his role, he leverages nearly three decades of experience to drive the company’s operations and go-to-market functions. A renowned leader in advertising technology, Rubenstein has consistently pioneered innovations that have reshaped the digital marketplace.
Rubenstein founded and led DoubleClick Ad Exchange (AdX), which became the dominant global marketplace for programmatic advertising and significantly contributed to the company’s acquisition by Google. He then joined AppNexus as President and Board Member, where he guided the company’s growth from a startup to a global leader in programmatic advertising, culminating in its acquisition by AT&T. His industry influence has been widely recognized, earning him multiple spots on the Silicon Alley 100.