Sean MacMannis

Sean MacMannis is the founder and marketing director of Positive Sum, a company that helps with marketing for early-stage technology organizations focused on building an internet that empowers builders and creators.4

Professional Background

Sean has extensive experience in digital advertising and marketing. He previously worked at Pinterest5 and has also been associated with Gitcoin.2 His LinkedIn profile indicates that he attended the University of California, Berkeley1, likely for his MBA at the Haas School of Business, as he mentions having an MBA from Berkeley/Haas.5

Current Role

As the founder of Positive Sum, Sean describes himself as a "solopreneur".3 In this capacity, he assists founders and professionals in growing their companies and careers.1 His work focuses on supporting exceptional DePIN (Decentralized Physical Infrastructure Networks), web3, and creator economy startups.2

Personal Life

Sean is based in the San Francisco Bay Area, where he has lived since 2007.5 He is married and a father of three children.2 Originally from Santa Barbara, California, Sean brings his West Coast background to his professional endeavors.5

Online Presence

Sean is active on various social media platforms:

• His LinkedIn username is seanmacmannis1
• On Twitter (X), his handle is @smacmannis2
• He also has a presence on Matcha under the username @seanmac4

Through these channels, Sean shares insights about marketing, technology, and entrepreneurship, reflecting his expertise and interests in these areas.