WithAI builds custom AI command centers for hedge funds, helping institutional investors research stocks, monitor portfolios, and act on signals with the full power of modern agents. Its flagship platform Multiplier is deployed on each clients own infrastructure and tuned to the funds proprietary process, data, and ontology, so that the AI behaves like a junior analyst who has spent years inside the firm rather than a generic chatbot bolted onto Bloomberg.
Multiplier ships with secure inference endpoints, changelogs, ontology maintenance, guardrails, and dedicated VM infrastructure, all hosted on client servers to satisfy strict compliance requirements. The WithAI team forward deploys with each fund, sitting alongside portfolio managers to map out workflows, wire up internal tools, and teach the system the unwritten rules that define how the fund actually invests. This concierge approach is the opposite of self serve SaaS and is the reason the platform can be trusted with sensitive trading workflows.
Founded in 2026 by Benjamin Finch and Ian McInnis and headquartered in New York, WithAI is part of Y Combinator P26. Ben was a founding researcher at Sentient Labs where he built LLM coordination and security technology, while Ian was an investor at Bridgewater Associates leading work on how AI will reshape markets. Three months after launch the company is already past one hundred thousand dollars of annual recurring revenue across multiple funds, a strong signal that institutional investors are ready to pay seriously for vertical AI infrastructure.