Great Lakes Commission: Binational agency that promotes the orderly, integrated and comprehensive development, use and conservation of the water and related natural resources of the Great Lakes basin and St. Lawrence River. Information on water, air, wetlands, maritime transportation, and other topics and issues.

Great Lakes Window: Manufacturer of all-vinyl custom windows and patio doors.

Great Lakes Radio Consortium: Provides about 7 environmental stories a week for radio broadcast and makes them available in Real Audio format on this site.

Great Lakes Protection Fund: A private, nonprofit corporation formed in 1989 by the Governors of the Great Lakes States. It is a permanent environmental endowment that supports collaborative actions to improve the health of the Great Lakes ecosystem.

Great Lakes Fishery Commission: To develop coordinated programs of research on the Great Lakes,which will permit the maximum sustained productivity of stocks of fish of common concern; and to formulate and implement a program to eradicate or minimize sea lamprey populations in the Great Lakes.

Great Lakes Information Network: One place for online for people to find information relating to the bi-national Great Lakes region of North America, whether it be economic, education or environmental.

Council of Great Lakes Governors: The Great Lakes Governors share a dual stewardship for both the world's single largest source of fresh water and the industrial heartland of North America. Today, the Council Governors lead the nation in advancing strategic alliances that stress continued protection of their natural resources and a sustainable world-class regional economy.

Great Lakes Wood Products, Inc.: Producing custom kitchen and bath cabinet doors for manufacturers and resurfacing companies.

Great Lakes Diving Company: Services for construction, repair, inspection, cleaning, and underwater removal.

Great Lakes Equipment Company: International dealer of pre-owned Caterpillar equipment and used and reconditioned replacement parts and components.