Miasma is a minor company making centrifuges as seen inside the Los Santos County Coroner Office during the Dead Man Walking mission. Their equipment can also be seen inside Methamphetamine Labs owned by Motorcycle Club Presidents in Grand Theft Auto Online. They have offices located in Los Santos, inside the Galileo House building.
- Miasma is a word defined as an "unpleasant or unhealthy smell or vapour", or defined as an "oppressive or unpleasant atmosphere which surrounds or emanates from something".
Other companies with offices in the Galileo House.