EX-21.1 3 y73442exv21w1.htm EX-21.1: SUBSIDIARIES OF THE REGISTRANT EX-21.1
EXHIBIT 21.1
SUBSIDIARIES OF REGISTRANT
AS OF OCTOBER 31, 2008
         
        Percentage of
        Voting
        Securities
        Owned by
    State of   Immediate
Name   Incorporation   Parent
ABM Industries Incorporated
   Delaware   Registrant
(*) ABM Facility Services Company
   California   100%
ABM Engineering Services Company
   California   100%
ABM CMS, Inc.
   California   100%
ABM Janitorial Services, Inc.
   Delaware   100%
ABM Co. of Boston
   California   100%
ABM Janitorial Midwest, Inc.
   California   100%
ABM Janitorial Services — Mid-Atlantic, Inc.
   California   100%
ABM Janitorial Services — North Central, Inc.
   California   100%
ABM Janitorial Services — Northeast, Inc.
   California   100%
ABM Janitorial Services — Northern California
   California   100%
ABM Janitorial Services — Northwest, Inc.
   California   100%
ABM Janitorial Services — Puerto Rico, Inc.
   California   100%
ABM Janitorial Services — South Central, Inc.
   California   100%
ABM Janitorial Services — Southeast, LLC
   California   100%
ABM Janitorial Services — Southwest, Inc.
   California   100%
ABM Janitorial Services FSG, LLC
   California   100%
ABM Shared Services, Inc.
   California   100%
American Building Maintenance Co. of Hawaii
   California   100%
Allied Maintenance Services, Inc.
   Hawaii   100%
OneSource Holdings, LLC
   Delaware   100%
OneSource Facility Services, LLC
   Delaware   100%
OneSource Energy Services, LLC
   Delaware   100%
OneSource Painting, Inc.
   Delaware   100%
OneSource Property Holdings, Inc.
   Delaware   100%
OneSource Landscape & Golf Services, Inc.
   Delaware   100%
Servall Services, Inc.
   Texas   100%
SM Newco Corp.
   Delaware   100%
ABM Janitorial Services Co., Ltd.
   Brit. Columbia   100%
ABM Payroll Service, Inc.
   California   100%
ABM Security Services, Inc.
   California   100%
SSA Security, Inc.
   California   100%
Elite Security, Inc.
   California   100%
American Public Services
   California   100%
Ampco Pacific Airpark, LLC
   California   60%
Ampco System Parking
   California   100%
Amtech Energy Services
   California   100%
Amtech Lighting and Electrical Services
   California   100%
Amtech Lighting Services
   California   100%
Amtech Lighting Services of the Midwest
   California   100%
Amtech Reliable Elevator Company of Texas
   Texas   100%
Beehive Parking, Inc.
   Utah   100%
Canadian Building Maintenance Company, Ltd.
   Brit. Columbia   100%
Supreme Building Maintenance, Ltd.
   Brit. Columbia   100%
OneSource Services, LLC
   Delaware   100%
System Parking, Inc.
   California   100%
 
(*)   Subsidiary relationship to registrant or to subsidiary parents shown by progressive indentation