EI includes representatives from the following organizations:

1000 Friends of Wisconsin protects and enhances Wisconsin's urban and rural landscapes by providing citizens with the inspiration, information and tools they need to effectively participate in the decisions that have the greatest impact on community health: where we live, work, learn, play and how we get from one place to another.

Alliant Energy is the parent company of Wisconsin Power & Light Company, a utility that provides electricity and natural gas in Dane County and central and southern Wisconsin. Alliant Energy participated in the EI study of Dane County.

American Transmission Company, formed in 2001, is a utility which owns and operates the high voltage electric transmission lines previously owned by other Wisconsin electric utilities.

Citizens Utility Board is a member-supported nonprofit organization that advocates for reliable and affordable utility service and that represents the interests of residential, farm, and small business customers of electric, natural gas, and telecommunication utilities before regulatory agencies, the legislature, and the courts.

Madison Gas and Electric Company provides electricity and natural gas to Madison and other nearby communities. MGE participated in the EI study of Dane County.

Midwest Renewable Energy Association is a nonprofit network for sharing ideas, resources, and information with individuals, businesses, and communities to promote a sustainable future through renewable energy and energy efficiency.

MSB Energy Associates offers comprehensive energy consulting services for businsses, federal and state government agencies, consumer and environmental organizations and utilities.

RENEW Wisconsin advances a sustainable energy future through public policy and private sector initiatives.

Wisconsin Energy Conservation Corporation is a nonprofit organization that creates and implements energy savings programs for a wide variety of clients—utilities, municipalities, regulatory commissions, weatherization providers, and consumer and environmental groups in the United States and Canada.

Wisconsin Public Power, Inc. is a statewide power company owned by 37 municipalities that operate electric utilities. These community-owned utilities purchase all of their electric requirements from WPPI and supply power to more than 141,000 homes and businesses throughout Wisconsin.