The company is the most important unit in the Brigade of Midshipmen. Companies eat, sleep, study, drill, and compete together. Comprised of roughly 30-35 midshipmen from each of all four classes, they are led by 1/c Midshipmen. There are currently 30 companies in the Brigade, though this number has ranged from 8 in the late 1920s to 36 from the late 1940s to the late 1990s.
Some classes are in the same company for all four years; there is also "shotgunning" (all midshipmen in a class, usually following plebe year, are moved randomly to a different company) and "rifling" (again usually following plebe year, an entire group would move from one company to another). Even though many alumni were a part of more than one company during their four years at the Naval Academy, the list below is reflective of the company from which they graduated.