2000–2015
Henrik Slipsager became the president and chief executive officer of ABM Industries in November 2000.[15] Divestitures were made, including selling Amtech Elevator in 2003 and CommAir Mechanical in 2005. ABM acquired Lakeside Building Maintenance in 2002; Security Services of America in 2004; and four janitorial companies—Colin Service Systems in the Northeast; Initial Cleaning Services' janitorial operations in Maryland; HGO in Philadelphia; and Brandywine Building Services in the Delaware, southeast Pennsylvania and south New Jersey area.
17 ABM employees were killed at the World Trade Center during the September 11 attacks.[16] Among those killed was Roko Camaj who was on the 105th floor of the South Tower when it was struck by United Airlines Flight 175. He managed to call his wife, Katrina, but was unable to escape before the tower collapsed. Camaj has come to be known as the "patron saint of window washers".[17] A window washer that was working for ABM managed to use his squeegee to open an elevator door, saving six people.[18]
In 2007, ABM acquired the assets of HealthCare Parking Systems of America, Inc. (HPSA), a provider of healthcare-related parking services based in Tampa, Florida with annual revenues of approximately $26 million.[19]
Also in 2007, ABM completed the acquisition of OneSource Services Inc. (London AIM: OSS) for $365 million in cash.[20] OneSource is a provider of outsourced facility 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.
In 2010, ABM acquired The Linc Group, LLC, also known as TLG, for $300 million. Also in 2010, ABM acquired select parking assets from the L&R Group of Companies and also all of the assets of three parking companies: Five Star Parking, Network Parking Company Ltd., and System Parking, Inc.[21]
In November 2012, ABM acquired Atlanta-based AirServ Corp. for $158 million in cash,[22] it also acquired HHA Services, a food and facility service provider to hospitals, healthcare systems, long-term care facilities and retirement communities.[23]