EXHIBIT
21
The IT Group,
Inc.
List of
Subsidiaries
Beneco Enterprises,
Inc.
Chi Mei Entech Co.,
Ltd.
Chi Mei International
Technology Co. (Scientech), Ltd.
EMCON, a California
corporation
IT Alaska, Inc.
Monterey Landfill Gas Corporation
E-Com Solutions, Inc.
Organic Waste Technologies, Inc.
Advanced Analytical Solutions, Inc.
National Earth Products, Inc.
Keystone Recovery, Inc.
American Landfill Supply Company
So-Glen Gas Company, LLC
LFG Specialties, Inc.
EMCON Industrial Services, Inc.
EMCON Engineering, Inc.
Groundwater
Technology, Inc.
Enterprise Environmental & Earthworks, Inc.
IT Environmental and
Facilities, Inc.
IT International
Investments, Inc.
The IT Group
Infrastructure & Environmental, Ltd.
IT Environmental
(Australia) PTY, Ltd.
The IT Group
Infrastructure & Environmental Italia, srl
International
Technology Europe, Ltd.
IT
Corporation
IT Corporation of
North Carolina, Inc.
IT C&V
Operations, Inc.
IT E&C
Operations, Inc.
IT International
Holdings, Inc.
IT International
Operations, Inc.
IT Investment
Holdings, Inc.
IT Investments,
Inc.
Jellinek, Schwartz
& Connolly, Inc.
Sielken, Inc.
JSC International, Inc.
JSC International, Ltd.
LandBank,
Inc.
LandBank Environmental Properties, LLC
LandBank Remediation Corp.
OHM Corporation (Ohio)
OHM Remediation Services Corp.
Pacific Environmental Group, Inc.
PHR Environmental Consultants, Inc.
Roche Limited Consulting Group
Universal Professional Insurance Company
