Sean Flynn


Managing Director



Consumer internet




Kelly Maze

Sean invests in mobile-enabled consumer Internet and enterprise software companies. He looks to partner with entrepreneurs who have a passion for pixel-perfect products and magical customer experiences. His aim is to become an entrepreneur’s trusted advisor; not to run the company, but rather to provide a thoughtful and balanced perspective for all of the important decisions they face.

Selected Prior

"When Sean invested in Upserve, our business had yet to take shape. With his guidance, we grew annual sales 400%."

Angus Davis
CEO - Upserve

He currently serves on the board of directors for secure enterprise messaging company TigerText, mobile digital archive Timehop, as well as video rights and marketing company ZEFR, the online learning bootcamp Bloc, and payments and analytics company Swipely. He also led the firm’s investments in the anonymous social network Whisper, Dollar Shave Club and Simple (acquired by BBVA). Sean joined Shasta after working at Yahoo!, most recently as a senior director of business development and business operations, where he focused on growing the company's communication and messaging products such as Yahoo! Mail, Messenger, Groups and Flickr. Previously he launched Yahoo's premium voice services as a product manager.

Prior to Yahoo, Sean was an investment banker at Morgan Stanley, where he advised technology, telecom and media companies in New York and Singapore. Sean holds a BA in economics from Brown University. Outside of working with great entrepreneurs, he has a passion for skiing, traveling to faraway places, and getting outdoors with his wife and three young children.