Ryan Duffy

I build and grow consumer apps at the intersection of digital media and the creator economy.

Most recently, as Head of Growth Marketing at Medium. Before that, as part of the founding team of Knowable, an a16z-backed e-learning startup acquired by Medium. 


Head of Growth Marketing Medium
Newsletter strategyMedium
App store optimization Medium
Medium Day live conference Medium
Audio learning app  Knowable
Brand design
Daily audio lessonsKnowable 
LinkedIn Learning partnership Knowable
Social video platformVidme
Web3 art marketplaceDigital Objects
Podcast and TikTok brand  Action Items

About me

I’m a zero-to-one marketing, content, partnerships, and ops leader with a decade of experience building venture-backed startups and growing products used by millions.

Most recently, I was Head of Growth Marketing at Medium, where I oversaw the platform’s full stack of email channels — marketing, content, transactional, newsletters, and more — reaching millions of readers and writers daily. 

Before that, I was part of the four-person founding team of Knowable, an a16z-backed e-learning app acquired by Medium. At Knowable, I led content production, creator acquisition, marketing, brand strategy, partnerships, content licensing, and more.

Before Knowable, the same team and I built Digital Objects, one of the world’s first Web3 marketplaces for artists and collectors, and Vidme, a social video platform acquired by GIPHY (a Meta company). 

I started my career in the entertainment business at top Hollywood agencies WME and UTA working with star clients including Denzel Washington, Angelina Jolie, and Harrison Ford.

Made in Los Angeles