Catherine E. Heigel

American Transmission Co. owns and operates the high-voltage electric transmission system. It provides electric transmission services in portions of Wisconsin, Michigan, Minnesota, and Illinois. It serves electricity producers and electric distribution companies. The company was founded by José M. Delgado in 2001 and is headquartered in Waukesha, WI.

Duke Engineering & Services, Inc. used to provide engineering & technical services to energy and environmental projects. The company was specialized in energy & environmental projects, offering engineering, design, operations and maintenances services. Duke Engineering was headquartered in Charlotte, NC

American Bar Association provides legal services. It provides law school accreditation, continuing legal education, legal information and other services to assist legal professionals. The firm has members which include judges, court administrators, law professors, and non-practicing attorneys. The company was founded on August 21, 1878 and is headquartered in Chicago, IL.

CORIX Infrastructure, Inc. provides water, wastewater and energy utility infrastructure solutions. Its activities include provision of multi-utility services that cover water, wastewater, gas, sustainable energy, and electric services and field metering services, provision of various services for water distribution systems, repair and maintenance of fire hydrants, preventative maintenance, inspection, fire flow testing, water meters testing and maintenance and design and building of custom water and wastewater treatment systems for municipal and industrial applications. The company was founded in 2006 and is headquartered in Richmond, Canada.

The Nature Conservancy of South Carolina, Inc. provides wildlife protection programs. The company was headquartered in Columbia, SC.