Misriah Securities is a Martian private military and security services training company, founded in 2545 by retired ODST Gustavo Murillo. Formerly known as Sentinel Services, the company was renamed after being acquired by the Misriah Group in 2549. They offer military training, logistical, security, and combat services to various private and government clients throughout Human-occupied territories. Misriah Securities is headquartered in Mars' Kenosha City, with offices present on a number of other worlds, including Ballast and Tribute.