EXHIBIT 21



Subsidiaries of the Registrant



Set forth below is a listing, by name and jurisdiction of incorporation, of each corporation that is, as of the date of this report, a subsidiary of the Registrant.
Unless otherwise indicated, each such corporation is a 100% owned subsidiary of the Registrant.



|1) | Compass Utility Supply, Inc., an Oregon corporation.
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|2) | HHH, LLC, a Delaware limited liability company.
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|3) | HSI Funding, LLC, a Delaware limited liability company.
|-- | -------------------------------------------------------



|4) | HSI Holdings, Inc., a Delaware corporation.
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|5) | HSI IP, Inc., a Delaware corporation.
|-- | -------------------------------------



|6) | Hughes Canada, Inc., a Delaware corporation.
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|7) | Hughes Insurance Company, Ltd., a Bermuda company limited by shares.
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|8) | Hughes Insurance Holdings, Inc., a Delaware corporation.
|-- | --------------------------------------------------------



|9) | Hughes Supply IP, Inc., a Delaware corporation.
|-- | -----------------------------------------------



|10) | Hughes Supply Management Services, Inc., a Delaware corporation.
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|11) | Hughes Supply Shared Services, Inc., a Delaware corporation.
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|12) | Hughes Holdings, LLC, a Florida limited liability company.
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|13) | Hughes Building Materials Holdings, LLC, a Florida limited liability company.
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|14) | Hughes Electric Holdings, LLC, a Florida limited liability company.
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|15) | Hughes MRO Holdings, LLC, a Florida limited liability company.
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|16) | Hughes Plumbing Holdings, LLC, a Florida limited liability company.
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|17) | Hughes Utilities Holdings, LLC, a Florida limited liability company.
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|18) | Hughes Water & Sewer Holdings, LLC, a Florida limited liability company.
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|19) | Hughes Building Materials, Ltd., a Florida limited partnership.
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|20) | Hughes Electric, Ltd., a Florida limited partnership.
|--- | -----------------------------------------------------



|21) | Hughes MRO, Ltd., a Florida limited partnership.
|--- | ------------------------------------------------



|22) | Hughes Plumbing, Ltd., a Florida limited partnership.
|--- | -----------------------------------------------------



|23) | Hughes Utilities, Ltd., a Florida limited partnership.
|--- | ------------------------------------------------------



|24) | Hughes Water & Sewer, Ltd., a Florida limited partnership.
|--- | ----------------------------------------------------------



|25) | Hughes Building Materials Group, Inc. (fka WCC Merger Corporation), a Georgia corporation.
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|26) | Hughes MRO Group, Inc. (fka Century Maintenance Supply, Inc.), a Delaware corporation.
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|27) | Hughes Plumbing Group, Inc. (fka Todd Pipe & Supply  Hawthorne, Inc.), a California corporation.
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|28) | Hughes Utilities Group, Inc. (fka Utiliserve Holdings, Inc.), a Delaware corporation.
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|29) | Hughes GP & Management, Inc. (fka Z&L Acquisition Corporation), a Delaware corporation.
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|30) | Intra-Power, LLC, a California limited liability company, 49% owned.
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|31) | Merex Corporation, a Texas corporation.
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|32) | Merex De Mexico, Sociedad Anonima De Capital Variable, a Mexico corporation.
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|33) | Merex Diesel Power, Sociedad Anonima De Capital Variable, a Mexico corporation.
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|34) | Montana Electric Supply, Inc., a Montana corporation.
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|35) | Montana Electric Supply, Inc., a Wyoming corporation.
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|36) | Provalue, LLC, a Delaware limited liability company.
|--- | ----------------------------------------------------



|37) | Southwest Power, Inc., a California corporation.
|--- | ------------------------------------------------



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|38) | Southwest Stainless, L.P., a Delaware limited partnership.
|--- | ----------------------------------------------------------



|39) | SWS Acquisition LLC,a Delaware limited liability company.
|--- | ---------------------------------------------------------



|40) | SWS Funding LLC, a Delaware limited liability company.
|--- | ------------------------------------------------------



|41) | Utility Products Supply Company, LLC, a Colorado limited liability company.
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|42) | WES Acquisition Corporation, Inc., a Wyoming corporation.
|--- | ---------------------------------------------------------



|43) | Western States Electric, Inc., a Oregon corporation.
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|44) | World-Wide Travel Network, Inc., a Florida corporation.
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