Sentinel Holdings Ltd.

Sentinel (SNTL), formerly known as James Maritime Holdings Inc., is a security and defense products company operating through two subsidiary businesses: United Security Specialists Inc. (USS), a contract security services provider, and Gladiator Solutions Inc., a ballistic protection products maker. Revenue is generated through service contracts with USS clients and product sales of hard armor plates, plate carriers, soft armor inserts, vests, helmets, and shields under the Gladiator brand. The company reported a net loss of $8,450,552 for the year ended December 31, 2024, with net cash used in operations of $32,707. Gladiator Solutions operations remained highly limited as of the filing date (2025-04-28) due to ongoing litigation and disputes that began in mid-2023. USS was co-founded by Kyle Madej in 2017. The company acknowledges material revenue concentration risk, disclosing that loss of any significant customer could negatively affect revenues and profitability.