Pennsylvania Environmental Organizations


Grassroots environmental justice

Allegheny Defense Project

Working for the protection of the natural heritage of the Alleghenies.

Allegheny Land Trust

Helping local people save local land

Allegheny Plateau Audubon Society

Dedicated to Biodiversity

Allegheny Valley Trails Association

Works to acquire abandoned railways in the Allegheny River watershed and rehabilitate them into multipurpose, non-motorized recreational trails.

Audubon Society of Western Pennsylvania

The premier non-profit, environmental education organization in southwestern Pennsylvania.

Bartramian Audubon Society

Serving Butler, Lawrence, Mercer, and Venango Counties

Berks Nature

Nature... Essential to our quality of life.

Bowman's Hill Wildflower Preserve

A sanctuary and educational resource for conservation and stewardship.

Brandywine Conservancy

Preserving art and the environment in the Brandywine Valley since 1967.

Brandywine Red Clay Alliance

Watershed Conservation. Environmental Education.

Brodhead Watershed Association

Protecting Our Water

Bucks County Audubon Society

Environment for the Future

Carantouan Greenway

Conservation and education in Bradford County

Central Pennsylvania Conservancy

Conserving natural resources and open space

Citizen Power

Public Policy Research Education and Advocacy

Clean Air Council

Protecting Everyone's Right to Breathe Clean Air

Clearwater Conservancy

Promoting conservation and restoration of natural resources in central Pennsylvania

Conemaugh Valley Conservancy

Promoting the conservation and preservation of natural, cultural, and historic resources and encouraging prudent land-use practices in the Kiski-Conemaugh River Basin.

Conservation Voters of Pennsylvania

Advocates for sound environmental and conservation policies, works to elect environmentally friendly candidates to public office, and then holds them to their promises.

Countryside Conservancy

Dedicated to protecting lands and waters in and near the Tunkhannock Creek Watershed

Cumberland Valley Rails-to-Trails Council

Developing the 11-mile Cumberland Valley Trail, from Shippensburg to Newville, in Cumberland County PA.

Delaware Highlands Conservancy

Conserving our natural heritage & quality of life in partnership with landowners & the communities of the Upper Delaware region.

Delaware Valley Fern & Wildflower Society

Encouraging the enjoyment of ferns and wildflowers.

Earth Conservancy

Dedicated to Mine Land Reclamation, Conservation and Economic Development in the Wyoming Valley of Luzerne County, Pennsylvania

E. L. Rose Conservancy

Protecting natural resources through land and water conservation, providing sanctuary for wildlife, and preserving scenic beauty.

Energy Justice Network

Supporting communities threatened by polluting energy and waste technologies.

Evergreen Conservancy

Environmental Stewardship

412 Justice

TOGETHER We rise. We build. We win. 412 JUSTICE is a multiracial, intergenerational, and multi-issue organization that focuses our efforts around economic, environmental, and education justice.

Fox Chapel Area Land Trust

Protecting our precious natural resources for generations to come.

French & Pickering Creeks Conservation Trust

Preserving and protecting endangered land and natural resources in northern Chester County.

French Creek Valley Conservancy

Dedicated to maintaining and enhancing the exceptional water quality, natural habitat, biological diversity and recreational opportunities of the French Creek Watershed in Northwest Pennsylvania.

Friends of the Chemung River Watershed

Rich history and beauty.

Friends of Salt Springs Park

A volunteer organization, formed by local citizens

Friends of the Wissahickon

Preserving the natural beauty and wildness of the Wissahickon Valley

Friends of White Clay Creek State Park

Protection and preservation of the park and surrounding creek valley

Friends of White's Woods

Dedicated to the preservation of the White's Woods Nature Center as a natural area for future generations.

Greater Wyoming Valley Audubon Society

Membership area includes most of Luzerne and Wyoming Counties.

Hawk Mountain Sanctuary

Conserving birds of prey worldwide by providing leadership in raptor conservation science and education, and by maintaining Hawk Mountain Sanctuary as a model observation, research and education facility.

Heritage Conservancy

Preserving our natural and historic heritage.

Hollow Oak Land Trust

Working for conservation in western Allegheny County

Independence Conservancy

Sharing a vision of clean water, beautiful vistas and special places in the Raccoon Creek Watershed preserved forever.

Keep Pennsylvania Beautiful

Empowering Pennsylvanians to make our communities clean and beautiful.

Keystone Trails Association

Providing, preserving, protecting and promoting recreational hiking trails and hiking opportunities in Pennsylvania.

Lacawac Sanctuary

Nature preserve, ecological field research station and public environmental education facility located in the Pocono Mountains of northeastern Pennsylvania

Lackawanna River Corridor Association

Involving citizens of our watershed with conservation and stewardship of the River, its tributaries and water resources

Lake Erie Region Conservancy

Dedicated to the identification, conservation and protection of the Lake Erie region’s unique natural and cultural resources

Lancaster County Conservancy

Dedicated to the preservation of Lancaster County's (PA) rapidly diminishing supply of natural land

Land Conservancy of Adams County

Preserving the rural lands and character of Adams County, Pennsylvania

Lebanon Valley Conservancy

Protecting cultural, historical & environmental resources

Lehigh Valley Audubon Society

Allentown, Bethlehem, Easton area

Linn Conservancy

Working to protect and preserve significant ecological sites in its home region for present and future generations.

London Britain Township Land Trust

Preservation, conservation, and stewardship of historic sites and open space, including important agriculturally productive lands and natural areas.

Lower Merion Conservancy

Preserving the natural and historic resources of Lower Merion, Narberth, and the surrounding area.

Lycoming Audubon Society

A chapter of the National Audubon Society with members in Lycoming and Clinton Counties, Pennsylvania.

Manada Conservancy

Land Preservation and Environmental Education

Moms Clean Air Force - Pennsylvania Chapter

Moms working in Pennsylvania to fight for clean air and a stable climate.

Mount Nittany Conservancy

Working hard to protect Mt. Nittany from commercial and residential development

Natural Lands Trust

Protects the forests, fields, wetlands, and streams that are essential to the sustainability and quality of life in eastern Pennsylvania and southern New Jersey.

Nature Conservancy - Pennsylvania Chapter

Honoring the importance of home.

North Branch Land Trust

Helping landowners conserve their property and helping communities develop smart growth strategies for the benefit of their citizens.

Northcentral Pennsylvania Conservancy

Conserves working farms and forests by partnering with private landowners on conservation easements and land acquisitions.

Open Land Conservancy of Chester County

Preserving Open Space In Our Community


Statewide, citizen-based environmental advocacy

Pennsbury Land Trust

Protecting and preserving the natural, agricultural, and historic resources of Pennsbury Township.

Pennsylvania Audubon Society

Connecting people with nature

Pennsylvania Environmental Council

Conservation through Cooperation

Pennsylvania Environmental Defense Foundation

Litigating for Our Environment

Pennsylvania Native Plant Society

Advocating conservation of native plants and their habitats and promoting the increased use of native plants in the landscape.

Pennsylvania Resources Council

Working to protect the environment since 1939.

Pennypack Ecological Restoration Trust

A nonprofit conservancy headquartered in Huntingdon Valley, Pennsylvania, 15 miles northeast of Philadelphia.

Presque Isle Audubon Society

Serving Erie, Crawford and Warren Counties

Quittapaphilla Audubon Society

Serving Lebanon County and parts of Dauphin, Berks, and Lancaster Counties

Radnor Conservancy

Preserving our quality of life

SEEDS - Sustainable Energy Education and Development Support

Promotes energy efficiency, renewable energy and sustainable living.

Seneca Rocks Audubon Society

Observe and Conserve. Clarion, Forest, Jefferson and Venango Counties

Sierra Club - Pennsylvania Chapter

The only member-led statewide environmental organization in Pennsylvania.

Sustainable Pittsburgh

Our region. Our resources. Our future.

Three Rivers Birding Club

Appreciating birds and the natural world of Southwestern Pennsylvania.

Valley Forge Audubon Society

Promoting appreciation and stewardship of the local natural environment through education and active participation.

Washington County Watershed Alliance

Represents the upper Chartiers Creek Watershed in Washington County, Pennsylvania.


Protecting Pennsylvania’s special places

Western Pennsylvania Conservancy

Enriching your relationship with the natural world since 1932

Westmoreland Conservancy

Dedicated to acquiring and preserving rural and rustic lands

Wildlands Conservancy

Creating lasting connections to nature since 1973.

Willistown Conservation Trust

Working to protect the rural beauty of the 28,000 acres surrounding Willistown, Pennsylvania.

Wissahickon Trails

We inspire and engage diverse communities of people to protect, steward, and enjoy the land and waterways of the Wissahickon Valley.

Wyncote Audubon Society

Philadelphia and Montgomery Counties

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