Andreessen Horowitz

Venture capital firm Andreessen Horowitz (a16z) has launched Cosign, a curated professional network aimed at the startup community. The platform is designed to connect founders, investors and operators through invite-based, vetted membership rather than open sign-ups. The move puts a16z in competition with established professional networks and reflects growing investor interest in private, high-trust communities for deal flow and founder support.

Venture investors, including figures associated with Andreessen Horowitz, are funding a new academy designed as an alternative to traditional college. The initiative reflects a broader push by parts of the tech industry to offer young people education paths outside established universities. Discussion centers on whether such programs can genuinely replace four-year degrees or serve only a narrow group.