Mission: The Environmental Defense Fund is perhaps the most wide-ranging organization on this list, working to provide solutions under the broad categories of climate change, oceans, wildlife and habitats, and health. The EDF works with other organizations, businesses, government, and communities to create incentives for positive environmental actions; help companies become better environmental stewards; influence policy; and keep tabs on emerging issues
Top Programs: Climate and energy, oceans, ecosystems

The Nature Conservancy

Mission: The Nature Conservancy protects ecologically important lands and waters around the world with the help of more than 500 staff scientists.
Top Programs: Climate change, fire, fresh water, forests, invasive species, and marine ecosystems 

Natural Resources Defense Council 

Mission: The Natural Resources Defense Council seeks to protect the basics—air, land, and water—and to defend endangered natural places, with an eye toward how these long-term decisions affect humans. 
Top Programs: Climate, land, wildlife, water, oceans, energy, food, sustainable communities 

 Sierra Club Foundation

Mission: The Sierra Club Foundation is the fiscal sponsor of the Sierra Club’s charitable environmental programs, and promotes efforts to educate and empower people to protect and improve the natural and human environment. The Sierra Club is the principal, though not exclusive, recipient of SCF’s charitable grants. 
Top Programs: Beyond Coal, Chapter and Group Education Project, Our Wild America

Food for thought.... perhaps if the marketing people have some time, PYR could come up with a marketing plan to contact the above groups, and others like them, for a discussion about PYR product.