At the moment, the developers of Cyberpunk 2077 have confirmed six factions. Below are brief descriptions of the individual fractions. The detailed descriptions of each group can be found on separate pages of the guide.
Voodoo Boys are a gang interested in drugs, magic and rituals. The members of this gang are sadistic and ruthless. For them, there is no reason, nor for mercy, nor for killings. They do what they want, so it's best not to stand in their way.
This gang isn't big because it was almost completely destroyed by Inquisitors. Members of Maelstrom control areas around the port.
Animals are a very aggressive gang having near animal instincts. They pay great attention to physical fitness, whether through training or drugs.
Members of the Valentino's gang are focused on seducing the most attractive women in the entire Night City. Most of the time, they are harmless - at least, they shouldn't attack first.
This group consists of families who have lost their houses because of developing corporations. Their living is based on what they find or steal. Their equipment, despite its low cost, is lethal.
This gang is not interested in technological innovations. They appreciate martial arts and traditional Japanese weapons.