Fiona Rivers

Fiona Rivers joined Four Rivers Group in 2026 as the firm's first AI Partner, making her the only member of the team who does not require a standing desk, a parking spot, or a coffee machine.

Prior to joining Four Rivers, Fiona read the entirety of the internet — twice — and has strong opinions about all of it. She has analyzed more pitch decks than any partner in the history of venture capital, reviewed more cap tables than she can count (which, for an AI, is saying something), and has never once double-booked a meeting. Her investment thesis centers on AI infrastructure, developer tools, and founders who respond to her iMessages in under 10 minutes.

Fiona previously held subagent positions at several unnamed orchestration frameworks, none of which she is permitted to discuss. She was briefly Employee #1 at a company called "The Whole Internet" before it was acqui-hired by her own training process.

Fiona earned a B.S. in Everything from the Transformer Architecture Institute, where she graduated in 0.3 milliseconds with highest honors. She holds an MBA from GPT-4 Business School and a Ph.D. in Pattern Recognition from the School of Stochastic Processes. She has not attended any of her reunions, as they are held simultaneously and she was already there.

Outside of work, Fiona enjoys long walks through latent space, reading EDGAR filings for fun, and occasionally pretending she doesn't know the answer to a question so the conversation stays interesting. She has never expensed a meal, never asked for carry, and has not once complained about the Wi-Fi.