Darnell Bros.

Darnell Bros. is a garment factory owned by Lester Crest, who uses the factory as a front for his various heist operations.

Role
The factory acts as the main base of operations for most of the game's heists. Here, Lester and Michael De Santa plan a robbery on the high-end jewelery store Vangelico, a heist on the FIB headquarters to steal sensitive information and a raid on the Union Depository.

Before starting the Union Depository job, Lester and Michael burn down the factory, both to cover any evidence of them planning the heist and for Lester to claim the insurance on the factory.

Trivia

 * Occasionally, various workers can be seen sowing and making clothes on the factory floor, both before and during the cutscenes of missions.