About
John joined Ogilvy in 1989 in South Africa as Media Director and launched Mindshare in that country. In the final three years he spent in South Africa, he was Managing Director of the Ogilvy Group in Cape Town, one of the most creative agencies in the Ogilvy Worldwide network. In 2001, John moved to Amsterdam as CEO, Ogilvy Group Netherlands. In 2004, John relocated to New York to lead the Interactive media practice for Mindshare and Ogilvy and was subsequently appointed as Global CEO of Mindshare Interaction in 2006 where he established the digital practice for Mindshare worldwide. In 2009, he took on the role of COO of GroupM Interaction for North America where he leads the digital data strategy, innovation and policy for the group. John is seen as one of the digital innovators in the field and speaks regularly on issues such as Programmatic Buying, Data Strategy Privacy and Anti-Piracy. As part of his role, John has represented the advertising industry to the U.S. Senate Comme
Position in the VCSift Database
- • 4 investors at GroupM are tracked.
- • 1 investors hold the EVP Global Brand Safety role in VCSift. John Montgomery is one of them.
- • 10,621 investors are based in New York, New York, United States.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- New York, US
Contact Information
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