Exhibit 21
 HCC INSURANCE HOLDINGS, INC.
 SUBSIDIARIES
 NAME
    
    STATE OR COUNTRYINCORPORATED1
    
    American Contractors Indemnity Company
    
    California2
    
    Avemco Corporation
    
    Delaware3
    
    Avemco Insurance Agency, Inc.
    
    Maryland4
    
    Avemco Insurance Company
    
    Maryland5
    
    BDI Acquisition Sub, Inc.
    
    Delaware6
    
    Centris Group, Inc., The
    
    Delaware7
    
    cineFinance Insurance Services, LLC
    
    California8
    
    Continental Underwriters Ltd.
    
    Louisiana9
    
    Covenant Claims Service, LLC
    
    Louisiana10
    
    Covenant Underwriters Ltd.
    
    Louisiana11
    
    CW Midwest, Inc. (d/b/a Cox Insurance Group)
    
    Indiana12
    
    Dickson Manchester & Company, Limited
    
    United Kingdom13
    
    G.B. Kenrick & Associates, Inc.
    
    Michigan14
    
    HCC Acquisition Sub, Inc.
    
    New York15
    
    HCC Administrators, Inc.
    
    Illinois16
    
    HCC Aviation Insurance Group, Inc.
    
    Texas17
    
    HCC Benefits Corporation
    
    Delaware18
    
    HCC Claims Services Ltd.
    
    United Kingdom19
    
    HCC Credit Group, Inc.
    
    New York20
    
    HCC Diversified Financial Products Limited
    
    United Kingdom21
    
    HCC Employee Benefits, Inc.
    
    Delaware22
    
    HCC Employer Services, Inc.
    
    Alabama23
    
    HCC Employer Services, Inc.
    
    Illinois24
    
    HCC Global Financial Products of Texas, LLC
    
    Texas25
    
    HCC Global Financial Products, LLC
    
    Delaware26
    
    HCC Global Financial Products, SL
    
    Spain27
    
    HCC Indemnity Guaranty Agency, Inc.
    
    New York28
    
    HCC Insurance Company
    
    Indiana29
    
    HCC Insurance Holdings (International) Limited
    
    United Kingdom30
    
    HCC Insurance Services Ltd.
    
    United Kingdom31
    
    HCC Intermediate Holdings, Inc.
    
    Delaware32
    
    HCC International Insurance Company PLC
    
    United Kingdom33
    
    HCC Life Insurance Company
    
    Indiana34
    
    HCC Reinsurance Company Limited
    
    Bermuda35
    
    HCC Risk Management Corporation
    
    Texas36
    
    HCC Service Company, Ltd.
    
    Texas37
    
    HCC Service Delaware, LLC
    
    Delaware38
    
    HCC Specialty Holdings (No. 1) Limited
    
    United Kingdom39
    
    HCC Specialty Holdings (No. 2) Limited
    
    United Kingdom40
    
    HCC Specialty Insurance Company
    
    Oklahoma41
    
    HCC Specialty Insurance Holdings, Ltd.
    
    United Kingdom42
    
    HCC Specialty Underwriters Agency of New York, Inc.
    
    New York43
    
    HCC Specialty Underwriters Limited
    
    United Kingdom




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NAME
    
    STATE OR COUNTRYINCORPORATED44
    
    HCC Specialty Underwriters, Inc.
    
    Massachusetts45
    
    HCC Strategic Investments (UK) Ltd.
    
    United Kingdom46
    
    HCC Strategic Investments, LLC
    
    Delaware47
    
    HCC Surety Group, Inc.
    
    Delaware48
    
    HCC Trustees Limited
    
    United Kingdom49
    
    HCC Underwriters, A Texas Corporation
    
    Texas50
    
    HCC Underwriting Agency Ltd.
    
    United Kingdom51
    
    HCCI Credit Services Limited
    
    United Kingdom52
    
    HCCI Group Limited
    
    United Kingdom53
    
    HCCL Holdings Limited
    
    United Kingdom54
    
    HCCS Corporation
    
    Delaware55
    
    Houston Casualty Company
    
    Texas56
    
    Houston Casualty Company Europe, Seguros y Reaseguros, S.A.
    
    Spain57
    
    Illium Trustees Ltd.
    
    United Kingdom58
    
    Illium, Inc.
    
    Delaware59
    
    InsPro Corporation
    
    California60
    
    Intellicare, Inc.
    
    Alabama61
    
    LDG Re (London) Ltd
    
    United Kingdom62
    
    LDG Re Worldwide Limited
    
    Delaware63
    
    LDG Re Worldwide Ltd.
    
    United Kingdom64
    
    LDG Reinsurance Corporation
    
    Massachusetts65
    
    LifeTrac, Inc.
    
    Delaware66
    
    Loss Management, Inc.
    
    Delaware67
    
    MAG Acquisition Sub, Inc.
    
    Delaware68
    
    Manchester Dickson Holdings Limited
    
    United Kingdom69
    
    Midwest Claims Services, Inc.
    
    Michigan70
    
    Multinational Underwriters, LLC
    
    Wisconsin71
    
    Nameco (No. 808) Ltd.
    
    United Kingdom72
    
    Novia Holdings, Inc.
    
    Indiana73
    
    Novia Underwriters, Inc.
    
    Indiana74
    
    Occidental Services, Inc.
    
    Delaware75
    
    PEPYS Holdings Limited
    
    United Kingdom76
    
    PEPYS Management Services Limited
    
    United Kingdom77
    
    Perico Life Insurance Company
    
    Delaware78
    
    Perico Ltd.
    
    Missouri79
    
    PIA Holdings, Inc.
    
    New York80
    
    Pioneer General Insurance Company
    
    Colorado81
    
    Ponderosa Management, Inc.
    
    Colorado82
    
    Professional Indemnity Agency, Inc.
    
    New Jersey83
    
    Profind Insurance Services Limited
    
    United Kingdom84
    
    Rattner Mackenzie (Bermuda) Ltd.
    
    Bermuda85
    
    Rattner Mackenzie (North America), Inc.
    
    New York86
    
    Rattner Mackenzie Limited
    
    United Kingdom87
    
    Rattner Mackenzie Limited, (RML) (Exempted) Co.
    
    Jordan88
    
    Specialty Insurance Underwriters, Inc.
    
    Missouri89
    
    Specialty Reinsurance Intermediaries, Inc.
    
    Massachusetts90
    
    Surety Associates Holding Co., Inc.
    
    New Mexico91
    
    TMD Rattner, LLC
    
    New York92
    
    TTR, L.L.C.
    
    New York93
    
    U. S. Specialty Insurance Company
    
    Texas




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NAME
    
    STATE OR COUNTRYINCORPORATED94
    
    United States Surety Company
    
    Maryland95
    
    US Holdings, Inc.
    
    Delaware96
    
    USBenefits Insurance Services, Inc.
    
    California97
    
    USSC Holdings, Inc.
    
    Maryland98
    
    VASA Brougher, Inc.
    
    Indiana99
    
    VASA North America, Inc.
    
    Indiana100
    
    Vintage Insurance Programs, LLC
    
    Delaware