Justin Rosenstein is an angel investor and co-founder of Asana, a work management platform. See portfolio, sector focus and contact routes.
Justin Rosenstein is an angel investor and co-founder of Asana, a work management platform, where he previously served as CEO and President before becoming a board member and advisor. He primarily invests in early-stage technology companies, focusing on seed and pre-seed rounds in sectors including enterprise software, workplace productivity, artificial intelligence, collaboration platforms, and future-of-work solutions. His geographical preference centers on the San Francisco Bay Area, though his portfolio spans diverse areas like travel, SMB software, media, social networks, biotech, SaaS, and fintech. Notable portfolio companies include Vibely, Career Karma, Good Money, and Mustard, an educational software firm. Rosenstein’s check size is not publicly specified, and sources do not clarify whether he typically leads or follows on deals. A distinctive point of view he holds is his vocal criticism of social media’s negative effects, stemming from his experience co-creating Facebook’s Like button, and he advocates for “humane technology” that prioritizes human well-being. He has also contributed public writing as a featured author in Wavelength
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