The Sigma Insurance HMO is affiliated with the following health facilities.
Braun Hospital
Peretoru, Bayelsa
Cummerata Hospital
Gusau, Zamfara
Dicki Hospital
Peretoru, Bayelsa
Gerhold Hospital
Katagum, Bauchi
Graham Hospital
Yala, Cross River
Greenfelder Hospital
Ogbaru, Anambra
Harvey Hospital
Jere, Borno
Heathcote Hospital
Okota, Lagos
Hegmann Hospital
Abakaliki, Ebonyi
Krajcik Hospital
Argungu, Kebbi