Multiplier
ActiveAgent harnesses for asset managers
About
Multiplier helps institutional investors research stocks and manage their portfolios. We're live with six hedge funds, and our users spend 4+ hours a day in the platform. Investors who try "nearly every tool on the market," to quote a client of ours, "wind up with an unwieldy collection of fragmented point solutions." Those who focus on building a great setup with general agents are instead "signing up for a full-time job." So we deploy a platform called Multiplier that unifies structured data, unstructured data, AI work, human work, and tacit firm knowledge in one secure, governed, customized application. Our first vertical: independent equity funds with $250M-$5B of assets. They know AI is essential for staying relevant, but they don't have the time or talent to figure out what to do about it. But once we deploy Multiplier––"We used to spend 80% of our time gathering information and 20% of our time acting on it," said one customer. "Multiplier has flipped those percentages."
Founders
Ian McInnis· Founder/CEOPrinceton Mathematics, 4.0, Shapiro Prize, Behrman Fellow, ΦΒΚ early election, ΣΞ induction & outstanding research award, researcher (check ArXiV), novelist (check nowhere) | Investor and builder of LLM investment systems at Bridgewater Associates, the world's largest hedge fund | Classically trained Shakespearean actor
Benjamin Finch· Founder/CEOBefore WithAI, Ben was the founding researcher and chief of staff at unicorn AI lab Sentient. He oversaw prompt security and multi-agent coordination work and built a million-strong community. He received a bachelor's and a master's in Electrical and Computer Engineering Magna Cum Laude from Princeton, writing acclaimed theses on solar power investment and a novel blockchain design to solve coordination issues in Energy. He grew up in Maryland, Mongolia, Kenya, and Indonesia.
Product launches · 1 launch
We help institutional investors research stocks and track their portfolio using AI.
Change history · 45 recorded
- September 27, 2026
- Launches refreshed08:00 PM
- Founder profile updated08:00 PM
- YC partner updated08:00 PM
- September 13, 2026
- YC partner updated08:00 PM
- Launches refreshed08:00 PM
- Founder profile updated08:00 PM
- August 30, 2026
- Relocated to New York City08:00 PM
- Launches refreshed08:00 PM
- Founder profile updated08:00 PM
- YC partner updated08:00 PM
- Crunchbase linked08:00 PM
- Twitter profile linked08:00 PM
- LinkedIn profile linked08:00 PM
- August 18, 2026
- Tags updated07:00 PM
- Description rewritten07:00 PM
- Location updated07:00 PM
- Regions updated07:00 PM
- Website updated07:00 PM
- August 16, 2026
- Launches refreshed08:00 PM
- YC partner updated08:00 PM
- Founder profile updated08:00 PM
- August 2, 2026
- Founder profile updated08:00 PM
- YC partner updated08:00 PM
- Launches refreshed08:00 PM
- July 19, 2026
- Launches refreshed08:01 PM
- Founder profile updated08:01 PM
- YC partner updated08:01 PM
- July 5, 2026
- YC partner updated08:00 PM
- Launches refreshed08:00 PM
- Founder profile updated08:00 PM
- June 21, 2026
- YC partner updated08:01 PM
- Launches refreshed08:01 PM
- Founder profile updated08:01 PM
- Relocated to San Francisco08:01 PM
- Regions updated07:00 PM
- Location updated07:00 PM
- June 14, 2026
- Description rewritten07:00 PM
- June 13, 2026
- Regions updated07:00 PM
- June 7, 2026
- Founder profile updated08:01 PM
- Launches refreshed08:01 PM
- YC partner updated08:01 PM
- June 6, 2026
- Pitch updated07:00 PM
- Tags updated07:00 PM
- Description rewritten07:00 PM
- May 13, 2026
- New launch posted: WithAI – Custom command centers for hedge funds06:18 AM