GREGG & CO is a corporation that serves as a general store on stations like Janah-12. They offer a wide variety of products for shoppers. An example is products ranging from clothing to medicine and toothbrushes.
In Episode Seventeen, Five, and Devon Taltherd went shopping there to acquire things for the ship and get medical supplies and plasma to operate on Six. The Android stayed at the store after they left to observe human behaviours and later attempted to shoplift a toothbrush as a gift for Five. Victor happened to be there shopping as well, observing her, and when a guard questioned The Android, he stepped in to defend her and bought the toothbrush for her.