Quiet Capital

Lee Linden built and sold companies (including Karma, Facebook's first post‑IPO acquisition), co-founded Tapjoy and led Facebook commerce products, offering deep pattern recognition in mobile‑social‑commerce and emotional consumer engagement.

Matt Humphrey, partner who founded his first company at 18, sold an ecommerce startup for about $100M in his mid-20s, co-founded LendingHome, and uses structured First Round–featured talent evaluation.

Michael Bloch—early DoorDash regional GM who sold Pillar to Acorns—combines operating experience with a rare dual investing focus on consumer fintech and national security/defense tech, having backed DragonflyDB and Mach9.

Adam Gries is Managing Director at Authentic and an angel investor whose primary focus is aging and longevity, an interest he has held since encountering the idea of Longevity Escape Velocity in 2007. A self-taught software engineer and operational, product-focused CEO, he founded and sold four companies that collectively reached more than 80 million users, and he studied neuroscience in college, including MRI-based research at Massachusetts General Hospital. Alongside his longevity work, he invests opportunistically and is drawn to the intersection of behavior and technology.

David Greenbaum is a Partner at Quiet Capital, a multistage venture firm with $1B in AUM currently deploying a $500M fund, where he writes checks of $1M to $100M from pre-seed through pre-IPO. Based in the San Francisco Bay Area, he concentrates on application software, consumer marketplaces and subscription businesses, and ecommerce and logistics, and has led deals internationally including Osana Health in Latin America, LocoNav in India, and Airlift and TAG in Pakistan. He previously ran finance at the online car marketplace Shift, which went public last fall, and worked as an investor at Vista Equity Partners and a consultant at McKinsey & Co.

Morgan Livermore is a Partner at Quiet Capital, an early stage venture firm, where he backs companies in enterprise software, DevOps, IT infrastructure, and fintech, and follows developments in autonomous vehicle technology. He previously served as a Partner at Geodesic Capital, where he worked on investments including JFrog, Aurora, Marqeta, UiPath, Imply.io, Workato, HashiCorp, Vercel, Confluent, Clearcover, and MX, and before that invested at Accel in GoFundMe, PagerDuty, Algolia, and BrowserStack. Earlier in his career he was an Associate at Vista Point Advisors and owned Evolving Vox; he is based in San Francisco.