EX-21 9 a2091038zex-21.htm EXHIBIT 21
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Exhibit 21


KAISER GROUP HOLDINGS, INC.
9302 Lee Highway, Fairfax, Virginia 22031
(703) 934-3600

Kaiser Group Holdings, Inc.'s consolidated subsidiaries are listed below. Consolidated subsidiaries which are less than wholly owned are indicated by the ownership percentage figure in parentheses following the name of the consolidated subsidiary.

Consolidated Subsidiary

  Jurisdiction
of Formation

I.   Kaiser Group International, Inc.   Delaware
    II.   Henry J. Kaiser Development Corporation, Inc.   Delaware
    II.   Kaiser Engineers Group, Inc.   Delaware
        III.   Henry J. Kaiser Company   Nevada
        III.   Kaiser Engineers, Inc.   Ohio
            IV.   KRGW Company (Canada), Inc.   Canada
            IV.   Kaiser Overseas Engineering, Inc.   Delaware
            IV.   Kaiser Engineers and Constructors, Inc.   Nevada
                V.   Kaiser Engenharia, S.A. (50%)   Portugal
            IV.   Kaiser Engineers International, Inc.   Nevada
                V.   Kaiser Panama S.A.   Panama
                V.   Kaiser Engenharia, S.A. (50%)   Portugal
            IV.   KE Services Corporation   Delaware
    II.   Kaiser Engineers Massachusetts, Inc.   Delaware
    II.   Kaiser Government Programs, Inc.   Delaware
        III.   Kaiser K-H Holdings, Inc.   Delaware
            IV.   Kaiser-Hill Company, LLC (50%)   Colorado
                V.   Kaiser-Hill Funding Company, L.L.C. (98%)   Delaware
            IV.   Kaiser-Hill Funding Company, L.L.C. (1%)   Delaware
    II.   Kaiser Hanford Company   Delaware
    II.   Kaiser Holdings Unlimited, Inc.   Delaware
        III.   Excell Development Construction, Inc.   Delaware
        III.   Kaiser Engineers Eastern Europe, Inc.   Delaware
            IV.   Kaiser Netherlands B.V. (10%)   Netherlands
        III.   Kaiser Netherlands B.V. (90%)   Netherlands
    II.   Kaiser Technology Holdings, Inc.   Delaware
        III.   Kaiser Advanced Technology, Inc.   Idaho
            IV.   ICF Kaiser Advanced Technology of New Mexico, Inc.   New Mexico
    II.   Monument Select Insurance Company   Vermont
    II.   MSIC, Inc.   Delaware
    II.   Tudor Engineering Company   Delaware



QuickLinks

KAISER GROUP HOLDINGS, INC. 9302 Lee Highway, Fairfax, Virginia 22031 (703) 934-3600