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Kimpton

Website
Founded 2025Origin source ↗Checked 2026-09-15

Overview

In investment management, every decision gets graded. The market prints the answer on a date known in advance, and nobody gets to argue with it.

Kimpton is financial AI that answers to reality. Kimpton OS is the AI-native operating system for investment teams: it does the research and hands PMs structured trades. EarningsBench is a public benchmark where models forecast quarterly earnings before companies report and the reported numbers do the scoring. Koliseum is the set of point-in-time financial environments we build from that work, for labs to train and evaluate models on.

The whole industry is fighting underperformance. Active managers trail their benchmarks, and capital keeps bleeding into passive. AI was supposed to fix that, but it hasn't. Funds either stitch together a dozen point tools or babysit general agents all day, and neither gets them to the trade.

Kimpton OS goes straight to it. It ingests a fund's mandate, strategy, and positions, connects to the institutional data the fund already runs on, and returns a structured trade proposal built for that fund. It's built to disagree, because consensus is poison for investment decisions. Instead of telling a PM what they want to hear, it surfaces the breaches and risks they'd otherwise miss.

That same work is how we grade AI. Static benchmarks leak into training data. Simulations reward what their authors imagined. A forecast sealed before the outcome exists and scored when the company reports can't be rehearsed or backdated. We started in markets because they're the one place reality answers on schedule.

We're two ex-Goldman engineers and an ex-SpaceX engineer. We left to start our own quantitative systematic hedge fund, raised $10M from a family office at 21 and 22, and scaled it to $35M over four years. We learned to trust live results over historical fit. We built Kimpton inside that fund, then productized the stack.

We're live with our first institutional client, a $3.3B manager. Our first market is fundamental equity funds from $1B to $10B, and the labs that need to know whether their models can do this work.

Company description As recorded 2026-11-08

Founders & team

Previously Kimpton AI

Company history As recorded 2026-11-08

Jack Zumwalt

Founder/CEO

Co-founder, CEO @ Kimpton AI (YC P26). Building live evaluation arenas for financial work. Jack ran systematic strategies and managed daily operations of Level III Capital, a quantitative systematic trading firm he co-founded after raising $10M to seed the fund at the age of 22. Prior to that, he was a detection engineer at Goldman Sachs, writing algorithms to detect malicious threat actors who were trying to cyber attack the investment bank.

Founder profile As recorded 2026-09-15

Adrian Del Bosque

Founder/Founding Engineer

Co-founder, Founding Engineer @ Kimpton AI (YC P26). Building live evaluation arenas for financial work. Adrian was a founding engineer at Level III Capital, a quantitative systematic trading firm, where he built the trading infrastructure. Prior to that, he was a Senior Cloud & Platform Engineer at Vistra, managing the cloud infrastructure behind the monitoring application for its 44,000 megawatt power generation fleet. He began his career at SpaceX as part of the Automation & Controls team.

Founder profile As recorded 2026-09-15

Mauricio Ortiz

Founder/CTO

Co-founder, CEO @ Kimpton AI (YC P26). Building live evaluation readings for financial work. Mauricio oversaw the entire technical implementation of the investment process, from research to trade execution, at Level III Capital, a quantitative systematic trading firm he co-founded after raising $10M to seed the fund at the age of 21. Prior to that, he was part of the critical infrastructure team at Goldman Sachs which handled systems for its consumer bank and the Apple Card.

Founder profile As recorded 2026-09-15
5team members reported
Source-reported As recorded 2026-09-15

Founded 2025 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedNew York City, NY, USA; Remote
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The homepage contains prelaunch or closure language; availability needs review.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yeardocumentation observedrecent publishing observed