Ravelin is a fraud prevention and payment optimization company founded in London in 2014. Its platform uses machine learning, graph networks, and human-in-the-loop insights to detect and prevent fraud across the full customer journey - covering online payment fraud, account security, refund abuse, and marketplace partner fraud. In February 2025, Ravelin joined Worldpay.
The platform is built for online merchants and serves a range of sectors including food delivery, travel, digital streaming, and quick-service restaurants. Customers include Deliveroo, Just Eat, Trainline, Spotify, and KFC. Its AI-native approach is designed to help merchants accept more legitimate payments while reducing exposure to fraud.
Technically, Ravelin's stack centres on several distinct capabilities:
- Machine learning models for real-time fraud scoring
- Graph networks to surface connections between entities and detect coordinated fraud
- Human insight tooling to support analyst review and model refinement
- Responsible AI principles embedded into the platform's design
Ravelin was founded by a team of five and operates with a distributed workforce spanning five continents, alongside its London office.
