Exhibit 99.1 Contact Keith E. Pratt EVP & Chief Financial Officer 925-606-9200 PRESS RELEASE FOR RELEASE April 25, 2024 McGrath Announces Results for First Quarter 2024 Livermore, CA - April 25, 2024 – McGrath RentCorp (“McGrath” or the “Company”) (Nasdaq: MGRC), a leading business-to-business rental company in North America, today announced total revenues from continuing operations for the quarter ended March 31, 2024 of $187.8 million, an increase of 15% compared to the first quarter of 2023. The Company ...