Katherine is co-founder and CEO of Vivoom.  Along with CTO Clay Webster, she founded the company in July 2014 based on two emerging trends: the rapid decline in the effectiveness of simply buying audiences and the explosion of social sharing about product and brand experiences. Both Katherine and Clay believe Shared Media will soon be built into every product and consumer experience - with audiences not bought, but instead generated authentically by consumers sharing – and that the “manufacturing” of addressable, targeted audiences will be a core competency for every successful consumer brand in the future. Katherine and the entire Vivoom team are religious that Shared Media always improve the product experience.

Prior to Vivoom, Katherine was CEO of GenArts, Inc (acquired by Boris FX) and the co-founder and COO of In-game advertising company Massive, Inc (acquired by Microsoft). She is the author of a half dozen technical patents.

Named as one of MobileMarketer's Mobile Women to Watch 2017, Katherine was featured in The New York Times’ weekly “Corner Office” column and in Adam Bryant’s 2014 book “Quick and Nimble: Lessons from Leading CEOs on How to Create a Culture of Innovation." She was also named a Woman to Watch by Mass High Tech in 2012 and won “Best Executive” at the Stevie Awards for Women in Business in 2011.

Harvard Business School published a case on Katherine’s path at Massive, Inc that is now widely taught across MBA and undergraduate programs. To date, Katherine has served as a guest speaker at Harvard Business School, Columbia University, Princeton University, Stanford Graduate School of Business, MIT Sloan School of Management and others.


Clay is an innovative technology leader with over 15 years experience creating advanced web systems for companies including CBS Interactive, CNET, and Unipress Software.  Clay is the architect behind Vivoom’s Shared Media platform, which has been designed to deliver augmented reality branded video filters and scale to serve the campaigns of the world’s largest brand advertisers.

Prior to co-founding Vivoom, Clay was the Associate Vice President of Platform Infrastructure at CBS Interactive. He led teams responsible for the scalable development and support of one of the world's top ten web properties and top five video sites. All online video content was delivered by his team's transcoding systems -- over 13,000 days of video per year. He also provided the fundamental software services to support all the company's website platforms (web servers, app servers, search, NoSQL, etc.). 

Clay held a variety of positions at CNET ranging from "Webmaster" to much more specialized positions in the deep end of technology. He launched many of CNET's websites, was involved in the first online content management system, StoryServer, and led the development and open sourcing of the popular and "disruptive" high relevancy search engine, SOLR. He also led the development of Atomics, a proto-NoSQL advanced enterprise search server, which won the MySQL User’s Conference “Application of the Year.”

Clay has been developing and integrating website technology since the first days of the web. He ran one of the world's very first website hosting organizations. He has been a guest lecturer at Seton Hall University’s Computer Science Graduate School program. He holds a BS in Computer Science from Rutgers University.

Jeff Walker, cmo & Executive Vp Business Development

Jeff is an entrepreneurial business development leader and brand builder with over 20 years experience in the media, entertainment, and music industries. Jeff has spent his career building markets, developing first-of-a-kind marketing programs, and negotiating strategic alliances with leading brands and performing artists.  Jeff has established high-profile marketing partnerships with The Walt Disney Company, Warner Brothers, NBC Universal, Marvel, Mattel, Nickelodeon, DreamWorks, Adam Levine, Eric Clapton, and Dave Matthews.

Jeff leads Business Development and the partnership strategy at Vivoom, managing the platform partnerships for social media, messaging applications, and other strategic alliances.  He also heads up the Marketing function including public relations, social media and web site strategy, trade show participation, and all other promotional efforts.  As CMO of Vivoom, he is on a quest to make Shared Media the fourth pillar beyond Owned, Paid, and Earned Media.

Prior to joining Vivoom, Jeff’s previous positions include Head of Sales, Marketing and Business Development at First Act, a leading consumer electronics company. Jeff led the global licensing initiative for First Act, which grew to represent over 50% of the company’s business.  He orchestrated a partnership with Maroon 5 front man, Adam Levine, to produce a line of products that was sold through a partnership with Target.

When he was SVP of Marketing at Seven45 Studios, First Act’s video game and publishing division, Jeff led the video game initiative from concept to leading video game studio. Under his leadership, the division developed and published well-known video games including Power Gig: Rise of the SixString.  Jeff opened retail distribution for the company, earning valuable shelf space at GameStop, Wal-Mart, Target, Toys R Us, and Kmart.

Prior to joining First Act, Jeff held other executive leadership roles including, Vice President of Publicity and Artist Development at The Rounder Records Group and Director of Publicity and Artist Development at Sony Music Entertainment.

In 2008, Jeff was included in a “40 Under 40” cover story in Music Inc. magazine.  

Jeff earned a Bachelor of Arts in Communications and Business from Loyola University in New Orleans, LA, followed by the Executive Education Program at Kellogg School of Management at Northwestern University in Evanston, IL.


Tim has been a pioneer in new media, with over 20 years of experience working at the cutting edge of the digital and mobile advertising industries.  Prior to joining Vivoom, Tim was a founding partner and SVP of Sales and Business Development at mobile ad network, Mojiva/Mocean, which was acquired by PubMatic. Throughout his sales journey, Tim has helped brand advertisers and publishers navigate the rapidly evolving digital landscape. He has spent his career helping enterprise brands, including Nike, Coca-Cola, Delta Airlines, Home Depot, Autotrader, Carnival Cruise Line, etc. and leading publishers, such as CBS, Fodors, Travelocity, Food Network, HGTV, Marketwatch, Time Inc, NBCU, Disney, Skype, Microsoft, G+J, Vodafone, ATT, and T-Mobile.

As the Head of Sales at Vivoom, Tim works with brands and agencies to participate more fully in the brand filter phenomenon that has won the hearts and minds of Snapchat’s user base.  Tim is tasked with educating marketers about Shared Media and working with them to create Shared Media video campaigns that outperform traditional mobile video advertising by 10-30X.

Before joining Mojiva/Mocean, Tim was one of the first employees and head of the Southeast Region sales team at DoubleClick, which revolutionized digital ad reporting and targeting for media buyers and was acquired by Google.

Tim received his bachelor’s degree from Cornell University.