Big 4 Rents was established in 1965 in Corte Madera, Ca. In 1997 Hertz Equipment Rental purchased Big 4 Rents. In November 2008 Hertz sold off the party rental division to Sisters Kim Roberts and Suzie Bradley Weir, and began operating the business as Big 4 Party Rental LLC. The new owners are the daughters of Chuck Bradley and Linda Bradley who previously owned Big 4 Rents prior to selling the company to Hertz. Kim and Suzie started working for their parents at a very young age stocking shelves and working behind the counter.

They continued to work with Hertz Equipment Rental in various fields of interests. The sisters have locations in Corte Madera and Rohnert Park and serves the Northern Bay Area, including Marin County, San Francisco, East Bay, Sonoma County and Solano County.