David Carroll

Linde, Inc. engages in design, engineering, manufacturing, and building of equipment that produces and distributes industrial gases. The company was founded in 1907 and is headquartered in Danbury, CT.

GTI Energy provides research, development and training services for the natural gas industries. It offers research and development, program management, technical services, analytical services, consulting, commercialization, training and information services. The company was founded in April 2000 and is headquartered in Des Plaines, IL.

Versa Power Systems, Inc. develops solid oxide fuel cell technology. It develops SOFC cells, stacks, and power plants for stationary and mobile applications. The firm has development facilities in Calgary, Canada. The company was founded by Robert A. Stokes in 2001 and is headquartered in Littleton, CO.

Changing World Technologies, Inc. specializes in transformation of organic wastes into petroleum products. Its technology Thermal Conversion Process reforms organic waste into renewable fuel oil, without combustion, incineration or toxic residue and breaks down waste into its smallest chemical units and reforms them into new combinations to produce alternative fuels and specialty chemicals. The company was founded by Brian S. Appel on June 12, 1998 and is headquartered in West Hempstead, NY.

The Executives Club of Chicago operates as a premier membership organization and business forum. The non-profit company is based in Chicago, IL.

The International Gas Union is a global organization that represents over 95%% of the gas industry in 85 countries across all 5 continents. Its mission is to advocate for the social, technical, and economic progress of the gas industry by promoting transparency, public endorsement, and the removal of barriers to progress, innovation, access, and development. The organization collaborates with other industry partners, public agencies, and multilateral organizations to achieve its goals. The International Gas Union is committed to a sustainable future that includes a wide spectrum of clean energy technologies, including gas, which is a critical tool for the world to meet climate goals and deliver on the sustainable development agenda. The organization seeks to improve the quality of life by advancing gas as a key contributor to a sustainable energy future. The International Gas Union provides publications, useful links, research documents, and reports about natural gas, including speeches held by the IGU presidency, the IGU secretariat, and other IGU representatives at events since 2010. Additionally, the organization offers a real-time air quality index and access to air quality reports.