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10-K - 10-K - CH2M HILL COMPANIES LTDa2196564z10-k.htm
EX-24.1 - EX-24.1 - CH2M HILL COMPANIES LTDa2196564zex-24_1.htm
EX-32.2 - EX-32.2 - CH2M HILL COMPANIES LTDa2196564zex-32_2.htm
EX-32.1 - EX-32.1 - CH2M HILL COMPANIES LTDa2196564zex-32_1.htm
EX-10.2 - EX-10.2 - CH2M HILL COMPANIES LTDa2196564zex-10_2.htm
EX-14.1 - EX-14.1 - CH2M HILL COMPANIES LTDa2196564zex-14_1.htm
EX-23.1 - EX-23.1 - CH2M HILL COMPANIES LTDa2196564zex-23_1.htm
EX-31.2 - EX-31.2 - CH2M HILL COMPANIES LTDa2196564zex-31_2.htm
EX-10.18 - EX-10.18 - CH2M HILL COMPANIES LTDa2196564zex-10_18.htm
EX-31.1 - EX-31.1 - CH2M HILL COMPANIES LTDa2196564zex-31_1.htm

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Exhibit 21.1


Subsidiaries of CH2M HILL Companies, Ltd.

1.
Operations Management International Inc., a California corporation

2.
CH2M HILL, Inc., a Florida corporation

3.
CH2M HILL Hanford, Inc., a Washington corporation

4.
CH2M HILL Engineers, Inc., a Delaware corporation

5.
CH2M HILL Constructors, Inc., a Delaware corporation

6.
CH2M HILL International, Ltd., a Delaware corporation

7.
CH2M HILL Alaska, Inc., an Alaskan company

8.
CH2M HILL Canada, Inc., a Canadian corporation



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Subsidiaries of CH2M HILL Companies, Ltd.