[1] It is majority owned by ENDIAMA and holds over half of the security contracts with Angolan diamond companies.

[2] Alfa 5 was founded in 1993 in partnership with senior or retired military officials or their close relatives for the purpose of providing security to ENDIAMA's diamond mines against criminals and UNITA rebels.

[2][3] These military and ex-military officials on the Alfa-5 board included then-General César Pugliese, Rui Carlos Sousa Gaio, the wife of then-FAA chief-of-staff General Agostinho Fernandes Nelumba, and the brother of former FAA chief-of-staff General João de Matos.

[6] Since its founding, Alfa 5 developed into a security company of its own, offering services to firms outside of ENDIAMA as well.

[5][9] In the early 2000s, employees of Alfa 5 were accused of multiple human rights abuses including unlawful killings of protesters, striking miners, and garimpeiros in places such as Luremo[3] and Cuango, and of flexing connections to the military leaders on the Alfa 5 board to avoid consequences.