Co I, Marine Support Battalion

Company I (Co I), Marine Support Battalion, has a distinguished history within the United States Marine Corps' signals intelligence and communications support community. Established to provide direct and specialized intelligence support to Marine Corps operations, Co I has served in various global theaters, delivering critical signals intelligence, electronic warfare, and communications security. The unit has participated in both peacetime and combat operations, supporting Marine Expeditionary Units and joint task forces worldwide. Renowned for its technical expertise and operational flexibility, Co I continues to play a vital role in enabling the Marine Corps’ mission success through superior intelligence support.