WASHINGTON, Oct. 4, 2012 /PRNewswire-USNewswire/ -- The Association for Demand Response & Smart Grid (ADS) announced today that four more leading companies had become members of the organization. The new members are Siemens, Constellation, Landis+Gyr, and GE. Dan Delurey, Executive Director of ADS, welcomed the newest members: "These four companies are helping to grow the new areas of demand response and smart grid, and now their membership in ADS will be helping to grow our organization." Delurey continued, "Their expertise will contribute greatly to ADS' informational and educational projects in the coming months. Their enthusiasm and support for the 2013 National Town Meeting on Demand Response and Smart Grid, scheduled for July 9-13, 2013 will also serve to make our signature event bigger and better for the upcoming 10 th anniversary." ADS is a non-profit organization based in Washington, DC, that focuses on the development and exchange of information among policymakers, utilities, technology companies, and other stakeholders. Its members include companies and organizations involved in DR, as well as individuals who consider themselves to be DR and smart grid professionals. Siemens Infrastructure & Cities Sector, with approximately 87,000 employees worldwide, offers sustainable technologies for metropolitan areas and their infrastructures. Its offerings include integrated mobility solutions, building and security technology, power distribution, Smart Grid applications, and low- and medium-voltage products. The sector comprises the Rail Systems, Mobility and Logistics, Low and Medium Voltage, Smart Grid and Building Technologies Divisions and Osram Sylvania. For more information, visit www.usa.siemens.com/infrastructure-cities. Constellation, an Exelon company, is a leading competitive supplier of power, natural gas and energy products and services for homes and businesses across the United States and Canada. Constellation provides integrated energy solutions that help customers buy, manage and use energy, from electricity and natural gas procurement to load response, energy efficiency and solar solutions. For more information, visit www.constellation.com. Landis+Gyr is the leading global provider of integrated energy management products tailored to energy company needs and unique in its ability to deliver true end-to-end advanced metering solutions. Today, the Company offers the broadest portfolio of products and services in the electricity metering industry, and is paving the way for the next generation of smart grid. With annualized sales of more than US$1.5 billion, Landis+Gyr, an independent growth platform of the Toshiba Corporation (TKY:6502) and 40% owned by the Innovation Network Corporation of Japan, operates in 30 countries across five continents, and employs 5,000 people with the sole mission of helping the world manage energy better. More information is available at www.landisgyr.com. GE (NYSE: GE) works on things that matter. The best people and the best technologies taking on the toughest challenges. Finding solutions in energy, health and home, transportation and finance. Building, powering, moving and curing the world. Not just imagining. Doing. GE works. For more information, visit the company's website at www.ge.com. About the Association for Demand Response & Smart GridThe Association for Demand Response & Smart Grid (ADS) is a nonprofit organization, originally formed in 2004 as the Demand Response Coordinating Committee (DRCC). ADS is a 501 (c) 3 nonprofit organization consisting of professionals and organizations involved in demand response and smart grid. It provides services to help its members in the conduct of their work and in the attainment of their personal, corporate and governmental objectives. ADS seeks to establish and grow a demand response "community" of policymakers, utilities, system operators, technology companies, consumers, and other stakeholders. Group Members of ADS are Ameren, American Public Power Association, Arizona Public Service, ComEd, Comverge, Con Edison, Conservation Services Group, Constellation, Emerson Climate Technologies, ENBALA, Exelon, Freeman, Sullivan & Co, GE, ISO New England, Joule Assets, Landis+Gyr, MISO, National Grid, National Rural Electric Cooperative Association, Navigant Energy Practice, NYSERDA, On-Ramp Wireless, Opower, Pacific Gas & Electric, PECO, PJM Interconnection, Progress Energy, Reliant, Rodan Energy Solutions, Inc., Salt River Project, San Diego Gas & Electric, Siemens, Southern California Edison, Southern Company, and Tennessee Valley Authority.