McGrath Rentcorp was founded in 1979 in California, with corporate offices in Livermore, California. The company is a diversified inter-enterprise leasing company with three leasing divisions: mobile modular buildings, electronic testing instruments, and liquid and solid tanks and packaging boxes.
Although the company's key business is equipment rental, the company also sells equipment. The company has four major business segments: (1) mobile portfolio management company, which includes modular home leasing division and portable storage business; (2) electronic testing equipment leasing division, which also includes environmental testing equipment leasing business; (3) its wholly-owned subsidiary Adler Tank Rentals, LLC, (4) Its wholly-owned subsidiary, Enviroplex, Inc., manufactures and sells modular buildings for use in California classrooms.
