Cambrian Ventures is built around a 1,500+ member founder-only fintech community and Slack network that serves as the core of the firm's deal sourcing and portfolio support model, while its LP base consists of fintech operators from companies like SoFi, Plaid, and Betterment who provide co-investment and distribution support to portfolio companies. The fund is intentionally structured as a small, solo-GP vehicle writing ~$500K non-lead checks specifically to collaborate with top lead firms rather than compete with them, and is tightly integrated with Rex Salisbury's weekly fintech podcast and newsletter that feeds deal flow and reinforces the fund's role as a convening hub for fintech builders.