The building collapse witnessed huge causalities and injured hundreds that took place in Savar on the outskirts of the capital around 8:45am.
According to the BGMEA directory, around 3,000 workers were supposed to work in the factories when the building collapsed.
The factories are: Ether Tex, New Wave Bottoms, New Wave Style, Phantom Apparels and Phantom Tac.
The BGMEA said 377 workers were supposed to be in the Ether Tex, while 526 in New Wave Bottoms, 1,073 in New Wave Style, 739 in Phantom Apparels and 407 in Phantom Tac.
Meanwhile, the BGMEA expressed deep shock at the loss of lives of garment workers in the Savar building collapse.
In a statement, the BGMEA urged all to join the rescue operation to save those who have remained trapped under the debris of the high rise.
The BGMEA has taken necessary steps for the workers who have been killed and injured in the incident.