Uncork Capital | 8,561 followers on LinkedIn. Uncork Capital is one of Silicon Valley’s most enduring seed firms — and a founder’s most trusted guide. | Uncork Capital is one of Silicon Valley’s most enduring seed firms — and a founder’s most trusted guide. We partner with the relentlessly curious, the undeterred, the trailblazers building AI-native platforms and infrastructure from the ground up. Uncork Capital is a San Francisco-based venture capital firm that helps founders build category-defining companies from the earliest stages.