EXHIBIT 21.1 LISTING OF SUBSIDIARIES
| Subsidiary | State or Other Jurisdiction of Incorporation | ||||
| 1000335854 Ontario Corporation | Ontario, Canada | ||||
| Aclara Belgium | Belgium | ||||
| Aclara India Private Limited | India | ||||
| Aclara International Holdings, Inc. | Delaware | ||||
| Aclara Japan Godo Kaisha | Japan | ||||
| Aclara Meters Chile SpA | Chile | ||||
| Aclara Meters LLC | Delaware | ||||
| Aclara Meters Philippines, Inc. | Philippines | ||||
| Aclara Meters UK Ltd. | UK | ||||
| Aclara Meters, S.L. | Spain | ||||
| Aclara Smart Grid Solutions, LLC | Delaware | ||||
| Aclara Technologies LLC | Ohio | ||||
| Acme Electric de Mexico, S. de R. L. de C.V. | Mexico | ||||
| Acme Electric Manufacturing de Mexico, S. de R.L. de C.V. | Mexico | ||||
| Armorcast Products Company, Inc. | California | ||||
| Austdac Pty. Limited | Australia | ||||
Bel Manufacturera, S. de R.L. de C.V. | Mexico | ||||
| Burndy Americas Inc. | Delaware | ||||
| Burndy International Holdings S.a.r.l. | Luxembourg | ||||
| Burndy LLC | Delaware | ||||
| Burndy Technology and Global Business Services Private Limited | India | ||||
| Burndy Technology LLC | Delaware | ||||
| Cantega Technologies Inc. | Canada | ||||
| CDR de Mexico S. de R.L. de C.V. | Mexico | ||||
| Chalmit Lighting Limited | UK | ||||
| Connector Assembly, Ltd. | Ohio | ||||
| Connector Manufacturing Company | Ohio | ||||
| Distribution Control Systems Caribe, Inc. | Puerto Rico | ||||
| Dongguan Hubbell Electrical Products Company Limited | China | ||||
| Electro Composites (2008) ULC | Nova Scotia | ||||
| GAI-Tronics Corporation | Delaware | ||||
| GAI-Tronics Limited | UK | ||||
| GAI-Tronics S.r.l. | Italy | ||||
| Gleason Reel Corp. | Delaware | ||||
| Harvey Hubbell Holdings S.a.r.l. | Luxembourg | ||||
| Harvey Hubbell Limited | UK | ||||
| Harvey Hubbell, Incorporated | Connecticut | ||||
| Hawke Asia Pacific Pte. Ltd. | Singapore | ||||
| Hawke Cable Glands Limited | UK | ||||
| Hipotronics, Inc. | Delaware | ||||
| Hub Reinsurance Limited | Bermuda | ||||
| Subsidiary | State or Other Jurisdiction of Incorporation | ||||
| Hubbell (Australia) Holdings Pty. Limited | Australia | ||||
| Hubbell (UK) GulfMex Limited | UK | ||||
| Hubbell Asia Limited | Hong Kong | ||||
| Hubbell Australia Holdco Limited | Cayman Islands | ||||
| Hubbell Canada ULC | Canada | ||||
| Hubbell Caribe Limited | Cayman Islands | ||||
| Hubbell Cayman Investments Limited | Cayman Islands | ||||
| Hubbell Commercial and Trading (Shanghai) Co., Ltd. | China | ||||
| Hubbell Corporate Holdings, Inc. | Delaware | ||||
| Hubbell Distribution, Inc. | Delaware | ||||
Hubbell do Brasil, Indústria, Comércio, Importação e Exportação de Equipamentos Elétricos LTDA | Brazil | ||||
| Hubbell Electric (Wuhu) Co. Ltd. | China | ||||
| Hubbell Gas Utility Solutions, Inc. | California | ||||
| Hubbell Global Operations Limited | Ireland | ||||
| Hubbell Holdco Luxembourg S.a.r.l. | Luxembourg | ||||
| Hubbell Holdings Europe Limited | UK | ||||
| Hubbell Holdings Limited | UK | ||||
| Hubbell Incorporated (Delaware) | Delaware | ||||
| Hubbell India Electrical Products, LLP | India | ||||
| Hubbell Industrial Controls, Inc. | Delaware | ||||
| Hubbell International Management Limited | Ireland | ||||
| Hubbell International, LLC | Delaware | ||||
| Hubbell Korea, Ltd. | Korea | ||||
| Hubbell Lenoir City, Inc. | Virginia | ||||
| Hubbell Limited | UK | ||||
| Hubbell Luxembourg S.a.r.l. | Luxembourg | ||||
| Hubbell Management Inc. | Canada | ||||
| Hubbell Manufacturing OKC, Inc. | Delaware | ||||
| Hubbell Operations, LLC | Delaware | ||||
| Hubbell Pickering LP | Canada | ||||
| Hubbell Plastics, Inc. | Delaware | ||||
| Hubbell Power Holdings S.a.r.l. | Luxembourg | ||||
| Hubbell Power Systems, Inc. | Delaware | ||||
| Hubbell Products Mexico S. de R.L. de C.V. | Mexico | ||||
| Hubbell Sing Holdco Pte. Ltd | Singapore | ||||
| Hubbell Switch Holding Co., Inc. | Delaware | ||||
| HUBS, INC. | Delaware | ||||
| Jiangsu Xiangyuan Electric Equipment Co., Ltd. | China | ||||
| Meramec Instrument Transformer Company | Missouri | ||||
| Meter Readings Holding I Corp. | Delaware | ||||
| Meter Readings Holding, LLC | Delaware | ||||
| Multiwave Sensors Inc. | Ontario, Canada | ||||
| Newco Condenser, Inc. | Delaware | ||||
| Subsidiary | State or Other Jurisdiction of Incorporation | ||||
| PCORE Electric Company, Inc. | Delaware | ||||
| PCX Holding LLC | Ohio | ||||
| Progress Lighting, LLC | Delaware | ||||
| Progressive Lighting, Inc. | North Carolina | ||||
| Progressive Lighting, Inc. | South Carolina | ||||
| REF Automation Limited | Ontario, Canada | ||||
| Ripley Europe Limited | United Kingdom | ||||
| State Street Corp. | Connecticut | ||||
| Wepawaug Canada Corp. | Nova Scotia | ||||