Sentinel Holdings Ltd., through its subsidiaries, provides protective services. The company offers professional security personnel and services, including on-site protection, mobile patrol, and event security through smartphone-based security applications. It serves businesses, residential communities, and event organizers. The company was formerly known as James Maritime Holdings, Inc. and changed its name to Sentinel Holdings Ltd. in April 2025. Sentinel Holdings Ltd. was incorporated in 1992 and is based in Sandy, Utah.