Butterflies of Cuyahoga County: Presents photos and species accounts of butterflies found within the county.
Cuyahoga Astronomical Association: Amateur astronomy club providing group overview, membership details, and contact details.
Cuyahoga County Environmental Data: Environmental information for developers.
Cuyahoga County Skywarn: Receives and passes ground truth weather reports from a network of trained volunteer severe weather spotters anytime there exists a watch or warning that affects Cuyahoga or adjacent counties.
Cuyahoga County Solid Waste District: Serves as a guide to the solid waste management and recycling services in the county.
Cuyahoga River Remedial Action Plan: Plans and promotes the restoration the Cuyahoga River through environmental condition improvements and pollution prevention.
Cuyahoga Soil and Water Conservation District: Agency responsible for protecting the natural resources within the county provides local leadership, education and technical assistance.
Cuyahoga Valley: Group seeks to influence development patterns, construction practices and industrial processes using an approach based on the integration of economic, social and ecological systems.
Environmental Health Watch: Contains information about local environmental problems and resources.
Friends of Big Creek: Group works to protect, conserve, enhance, and improve the waterway and watershed of this Cuyahoga River tributary.