Unit of affiliation; cadets are assigned to one of 20 companies housed in five battalions (or barracks).
- First Battalion (Murray Barracks)
- Alpha, Bravo, Charlie, and Delta Companies
- Second Battalion (Padgett-Thomas Barracks)
- Echo, F-Troop, Golf, Hotel, and Band Companies
- Third Battalion (Law Barracks)
- India, Kilo, Lima, and Mike Companies
- Fourth Battalion (Watts Barracks)
- November, Oscar, Romeo, and Tango Companies
- Fifth Battalion (Stevens Barracks)
- Palmetto Battery; Papa, Sierra, and Victor Companies
Capitalize only when referring to specific cadet companies:
- Each cadet company is assigned a TAC officer.
- The commander of Charlie Company is from Sumter, S.C.