# Martin Sweeney

> Martin Sweeney is the co-founder and CEO of Ravelin Technology, a fraud prevention and payments business founded in 2014. A former founding engineer at Hailo with a background in physics and software, he helped turn a merchant’s need for fast fraud decisions into a company serving international online businesses. He continued leading Ravelin after its acquisition by Worldpay in February 2025.

- **Role:** Co-founder and CEO at Ravelin Technology
- **Organizations:** Ravelin Technology, Hailo, Hub Culture
- **Education:** University of Leeds
- **Known for:** Co-founded and led Ravelin from 2014 through its acquisition by Worldpay in February 2025., Helped expand Ravelin from payment fraud detection into account security, refund abuse, marketplace risk and 3D Secure authentication., Led the business when it reported ten billion scores across its products in 2023.

## Career timeline

- **2010** — Began working at Hailo as a founding engineer; in 2025 he publicly marked 15 years since joining.
- **2014** — Co-founded Ravelin with Nick Lally, Mairtin O’Riada and Leonard Austin.
- **2015** — Ravelin joined Barclays Techstars and received early institutional backing including Passion Capital and Amadeus Capital Partners.
- **2020** — Ravelin raised a $20 million Series C led by Draper Esprit.
- **2023** — Ravelin reported ten billion fraud scores, including two billion orders, across its products.
- **2025-02** — Worldpay acquired Ravelin; Sweeney said he, Lally and O’Riada would continue leading the company day to day.
- **2026** — Continued as CEO, discussing agentic commerce and AI-enabled fraud in Ravelin’s research releases.

## Achievements

- Co-founded and led Ravelin from 2014 through its acquisition by Worldpay in February 2025.
- Helped expand Ravelin from payment fraud detection into account security, refund abuse, marketplace risk and 3D Secure authentication.
- Led the business when it reported ten billion scores across its products in 2023.

## Latest updates

- **2026-06** — Ravelin published its Global Fraud Trends 2026 release on 30 June; Sweeney urged merchants to assess customer behaviour beyond the payment event.
- **2026-05** — Sweeney commented on Ravelin’s Agentic Commerce and Fraud Report, warning that new buying technologies also create opportunities for fraud.
- **2026-02** — In his first-anniversary acquisition reflection, Sweeney reported 93% staff retention, 16% headcount growth and renewals by Ravelin’s five largest merchants. These are his self-reported company measures.

## Links

- Website: https://sweeney.io/
- LinkedIn: https://www.linkedin.com/in/martinsweeney/
- Twitter/X: https://x.com/sweeney
- GitHub: https://github.com/sweeney

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Profile page: https://yespress.io/martin-sweeney
Published by YesPress — https://yespress.io
Last updated: 2026-10-21