# Stuart Jones, Jr.

> Stuart Jones, Jr. is the New York-based co-founder and CEO of Sigma360. A former U.S. Treasury financial attaché in Afghanistan and the Gulf and a former EY executive, he co-founded Sigma with Gabrielle Haddad after studying at MIT Sloan. His work centers on financial crime prevention, counterparty intelligence and compliance technology.

- **Role:** Co-Founder & CEO at Sigma360
- **Organizations:** Sigma360, Sigma Ratings, Inc., U.S. Department of the Treasury, National Counterterrorism Center, EY, MIT Sloan School of Management
- **Education:** MBA; Sloan Fellow, MIT Sloan School of Management, MLitt, International Security Studies, University of St Andrews, BA, Political Science, American University
- **Known for:** U.S. Treasury Department Meritorious Service Award., Two U.S. Treasury Secretary’s Honor Awards., Co-founded Sigma with Gabrielle Haddad while at MIT Sloan.

## Career timeline

- **Following 2001** — Joined the U.S. Treasury Department following 9/11.
- **—** — Served as a senior adviser in the Office of Terrorist Financing and Financial Crimes and spent 15 months helping establish NCTC strategic operational planning.
- **—** — Served for two years as Treasury financial attaché to Afghanistan, then as financial attaché to the Gulf Cooperative Countries.
- **Before 2017** — Worked as an EY executive in its Middle East practice.
- **2017** — Earned an MIT Sloan MBA and co-founded Sigma with Gabrielle Haddad; participated in MIT delta v.
- **2018** — Sigma Ratings publicly launched its non-credit ratings offering.
- **2019** — Named as a co-inventor on a published machine-learning entity evaluation patent application.
- **2023** — Announced the Sigma360 rebrand and explained the company’s shift toward software.
- **2026** — Led Sigma360 through a $17.3 million Series B and hosted Inside the Signal.

## Achievements

- U.S. Treasury Department Meritorious Service Award.
- Two U.S. Treasury Secretary’s Honor Awards.
- Co-founded Sigma with Gabrielle Haddad while at MIT Sloan.
- Co-inventor named on US20190164015A1, a patent application for machine-learning techniques for evaluating entities.
- Sigma360 reported profitability in 2025 and fivefold growth over two years in March 2026.
- Sigma360 raised a $17.3 million Series B in March 2026.

## Latest updates

- **2026-09** — Hosted Brett Mannwaring on Inside the Signal to discuss historical transaction reviews and modern financial crime operations.
- **2026-08** — Sigma360 appears at No. 356 on the 2026 Inc. 5000 list.
- **2026-06** — Sigma360 announced Chartis category leadership in screening and adverse media.
- **2026-03** — Announced a $17.3 million Series B led by Moderne Ventures.

## Links

- Website: https://www.sigma360.com/team/stuart-jones-jr/
- LinkedIn: https://www.linkedin.com/in/stuartjonesjr

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Profile page: https://yespress.io/stuart-jones-jr
Published by YesPress — https://yespress.io
Last updated: 2026-10-11