John Guenther

Chief Financial Officer at Ryff

John Guenther has a diverse and extensive work experience in finance and corporate strategy roles. John is currently serving as the Chief Financial Officer at Ryff since December 2021. In their role, they lead the creation of direct-to-creator messaging and advertising for TV, film, sports, and social media using AI and visual computing.

Prior to joining Ryff, John worked as a Consulting CFO from 2017 to 2022, providing financial services and strategic guidance to startup founders and entrepreneurs in the Media, Entertainment, and Technology industries. John'sclients included film and TV production companies, AR/VR technology companies, game developers, OTT entertainment platforms, and more.

From 2015 to 2019, they served as the Chief Financial Officer at Zeroth Industries. Before that, they worked at Sony Media Cloud Services (MCS) from 2011 to 2015, where they held the position of CFO & VP Commercial Operations. At MCS, they were responsible for financial planning, business development, product design, and overall company strategy.

John also had a long tenure at Sony Pictures Entertainment (SPE) from 2003 to 2014, where they served as Vice President of Finance & Business Development for Production Services and Technologies. In this role, they collaborated with executive management to identify and analyze new business opportunities, manage financial requirements, and provide consultation for strategic projects.

Before joining Sony Pictures, John worked in the investment banking sector at Ernst & Young Corporate Finance and Banc of America Securities. John started their career at EY as a Senior Analyst in Business Valuation.

Overall, John Guenther's career has been focused on financial leadership, strategic planning, and business development in the media, entertainment, and technology industries.

John Guenther attended Indiana University Bloomington and obtained a Bachelor of Science degree in Finance. Additionally, they also attended John Burroughs School and the University of California, Berkeley, but no specific degree or field of study is provided for these institutions.


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  • Chief Financial Officer

    December, 2021 - present