About
Rosemarie is a renowned leader, brand builder and rabble-rouser in the marketing industry. She began her career in account planning and was among the first wave of Brits to import the Account Planning discipline to the United States at Chiat Day. As president of K&B, she took it from a 30-person boutique to a 400-person strong award-winning agency. She then took on the mantle of leading the 125 year-old JWT into the 21st century. In her tenure she restructured the workplace, the teams and creative product, and doubled the profits of the agency. Not satisfied with reinventing an agency, she decided it was time to reinvent the industry. In September of 2010, Rosemarie, along with her creative partner Ty Montague, left JWT and founded co:collective. Co: is a Storydoing collective focused on business and brand transformation and is fortunate enough to be working with likes of YouTube, Infiniti , Google and Timberland. In September 2012, Rosemarie was named as one of the ‘100 most influe
Position in the VCSift Database
- • 371 investors hold the CEO and Co-founder role in VCSift. Rosemarie Ryan 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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