Heshimu oversees the Sovereign Grace African Fellowship missionary organization. He is also chairman of the Sovereign Grace African Foundation, a non-profit / non governmental organization doing works of charity throughout Sub Saharan Africa, registered in Nigeria (www.SGA-Foundation.org). Heshimu has pastored in California for nearly 20 years. He was called in 2016 to do the work of an evangelist in the Sub Sahara.