Startup Party Up for First Thursday is a local San Francisco startup social for founders, builders and the AI/tech community. Scheduled for Apr 02, 2026 at LUMA, the event markets itself as a casual evening to meet founders, investors, and local operators, featuring networking, informal demos, and community conversations. It’s a convenient in-person opportunity for early-stage founders to connect with potential collaborators and investors in San Francisco’s startup ecosystem. Registration is available via the listed event page (Lu.ma link provided on the event listing).