ABM INDUSTRIES INC /DE/ acquisition history.

WGNSTAR is a provider of managed workforce solutions and equipment support services for the semiconductor and high-technology industries, operating across the U.S. and in Ireland with more than 1,300 employees. It generates over half of its revenue from integrated workforce programs that supply trained technical teams to chip fabrication facilities, and also offers OEM equipment support services spanning installation, maintenance, and production tool management. ABM announced the deal as a definitive agreement; it had not yet closed as of the filing.

RavenVolt, headquartered in Alpharetta, Georgia, is a nationwide provider of advanced turn-key microgrid systems used by commercial and industrial customers, national retailers, utilities, and municipalities. It designs and installs customized microgrid solutions, including RavenVolt-branded generators and switchgear delivering modular, redundant power. At acquisition it employed over 80 people and was projected to generate $70-$80 million revenue and $17-$19 million EBITDA in calendar 2022. ABM acquired RavenVolt for $170 million cash on September 1, 2022, with up to $280 million of contingent consideration payable through 2026 if EBITDA targets are met.

Able Services, headquartered in San Francisco and founded in 1926, was the largest family-owned provider of building maintenance, engineering and facility operations in the United States, with revenues of $1.1 billion and adjusted EBITDA of $65 million (normalized for COVID-19 impacts). Engineering services represented roughly 60% of revenue and janitorial about 40%; its 80% unionized workforce served over one billion square feet of real estate. ABM acquired Able in a cash transaction valued at $830 million, announced August 25, 2021 and completed September 30, 2021.

GCA Services Group, headquartered in Cleveland, Ohio, was a leading provider of facility services in the education and commercial industries, specializing in facilities maintenance, janitorial services, grounds management, vehicle services and outsourced workforce solutions, with over 37,000 employees across 46 states, the District of Columbia, and Puerto Rico. ABM acquired GCA from affiliates of Thomas H. Lee Partners, L.P. and Goldman Sachs Merchant Banking Division for approximately $1.25 billion in cash and stock; the deal was announced July 12, 2017 and closed September 1, 2017. It was the largest acquisition in ABM's history.

Air Serv Corporation, founded in 2002, was a leading provider of integrated facility management services for the world's leading airlines and freight companies at airports throughout the United States and United Kingdom, employing approximately 12,000 people worldwide. ABM announced the agreement to purchase Air Serv for approximately $158 million in cash on October 8, 2012, subject to certain closing adjustments, and completed the acquisition of all outstanding shares on November 1, 2012.

The Linc Group, LLC (TLG), based in Irvine, California, was a premier provider of end-to-end integrated facilities services that improve operating efficiencies, reduce energy consumption and lower operational costs of critical facilities, installations and buildings in the government, commercial and residential markets. TLG's 2009 revenues totaled $579.2 million. ABM acquired TLG for $300 million in cash; the transaction closed December 1, 2010.

OneSource Services Inc. (London AIM: OSS) provided outsourced facilities services, including janitorial, landscaping, general repair and maintenance and other specialized services, for more than 10,000 commercial, industrial, institutional and retail accounts in the U.S. For the trailing 12 months ended June 30, 2007, OneSource's sales and adjusted EBITDA were approximately $828 million and $8 million, respectively. ABM agreed to acquire OneSource for $365 million in cash ($84.27 per share), announced October 8, 2007 and completed November 14, 2007.