We are specialists.

Together, let’s unlock the full potential of marketing technology.

Brandon Starkoff

CEO, Managing Partner

Brandon specializes in helping brands unlock greater customer value by connecting their technology, data and processes. He spent 16 years at Publicis’ Starcom MediaVest Group where he lead integrated media planning and buying for major global brands such as Sun Microsystems, BlackBerry and Sprint. He was also a key leader in the Agency’s transformation towards advanced digital and mobile activation, including early testing in addressable platforms. Most recently he was VP Head of Industry at xAd, an industry leading mobile location platform where he integrated one-to-one real-time audience insights into mobile targeting to deliver positive ROI for large scale Brands.

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Kalyana Prattipati

Partner, Data & Analytics

Kalyana focuses on helping brands navigate their way through the complex world of advertising technology and data. Kalyana previously was VP of Global Platforms at Omnicom’s Accuen Media. He architected the Accuen platform for programmatic buying across display, mobile and
video. Kalyana also led the implementation of Omnicom’s global DMP in order to support the evolution of data driven programmatic media buying across all channels and to build an enterprise data platform. Additionally, Kalyana had stops as VP of Product for Videology, a video DSP, and Head of Advertising Platforms for Spiceworks a specialty B2B publisher.

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Paul Tapscott

Partner, Business Development

Paul brings extensive experience and expertise in fostering brand and organizational partnerships through strategy development and the guiding through implementation, for both brands and agencies. Prior to joining Transparent, Paul served as Vice President of Industry at GroundTruth (formerly xAd), driving the advancement of mobile programmatic deployment, as well as managing a team dedicated to helping consumer packaged goods companies leverage location data for marketing purposes. Paul also previously built the mobile practice at Centro, and developed tools to better organize the digital operations at Starcom. Paul led the design of innovative campaigns for global tech and CPG brands, such as BlackBerry and Procter and Gamble, during his time with those agencies.

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Beth Milligan

Senior Director, Accounts

Beth brings extensive media strategy experience across a variety of categories, including consumer package goods, finance and technology. Prior to joining the Transparent team, Beth oversaw digital go-to-market strategies for Procter & Gamble, helping Tide adopt an “always on” approach to digital. Beth was also instrumental in helping Oral-B and Crest set their vision for data management and implement the infrastructure across their online and offline marketing to enable better decision-making.

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Kevin Butler

Director, Accounts

Kevin specializes in bridging the gap between communication strategy and performance marketing activation. He has managed digital acquisition marketing for brands that include General Motors, Procter & Gamble and Circuit of the Americas. Kevin also led the implementation of a self-serve DSP for ESPN, determining the optimal data providers and segments and onboarding a new process across the marketing department.

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Megan Sullivan

Director, Accounts

Megan has been a pioneer in programmatic media, helping brands like Kraft adopt self-service buying and first-buying data execution. She has extensive experience in tag management system efforts, dynamic content optimization and dashboard reporting. Megan also specializes in verification, viewability and fraud audit efforts to ensure clients have a transparent view of their media buys. Her past clients include Kellogg, Wrigley, Heinz, Burger King, Harley-Davison and Blackberry.

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Matt Reder

Director, Accounts

Matt has vast experience in leading communications planning, media strategy, and holistic activation for top brands such as Spotify, ESPN and Hallmark. He has pushed marketers to reimage optimal ways of using data and technology to drive media effectiveness including onboarding various MarTech systems as well as overseeing multi-touch attribution solutions. Matt specializes in mobile and has educated both agency and brand teams on advancing capabilities throughout his career.

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Michael Sims

Director, Technology

Michael is an industry-leading technologist with experience across data center management, database administration, industrial engineering, and IT infrastructure and security. He has spent his career leading global accounts in technology infrastructure discussions and platform selection, deployment, and execution. At Publicis’s VivaKi COE for digital media, Michael performed deep dives into ad tech, fraud detection, content and audience verification, and programmatic technologies. He has worked with clients including Microsoft, P&G, Disney, Twitter, and Samsung, among others.

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UK Partners


Ryan Kangisser

Stack I/O Managing Partner

Over the last 14 years, Ryan has advised some of the world’s leading brands on how to derive greater value and productivity from all facets of their digital marketing.Starting his career at leading independent digital agency Profero, where he cut his teeth in all areas of digital marketing, he turned to consulting in 2005 joining Ebiquity where he was instrumental in developing digital auditing in the UK. In 2010, he joined MediaSense to launch their digital practice advising brands on areas such as organisational design, agency search & selection, technology strategy and deployment and digital performance. Spotting a clear need for impartial and transparent advice in the advertising and marketing technology area, he established Stack I/O in 2016. Regarded as a thought leader and agitator in the media industry, Ryan was recognised in 2011 in MediaWeek’s 30 under 30. He creates comprehensive strategies for UK and multinational brands seeking data and technology driven digital marketing acceleration.