- ACZISC (Atlantic Coastal Zone Information Steering Committee)
 - Guide to coastal information in Atlantic Canada. - Alberni Environmental Coalition
- promotes the cause of environmental awareness in and about the Alberni Valley.
- Alberta Environmental Network
- Dedicated to helping Albertans achieve and maintain a healthy environment.
- Alberta Plastics Recycling Association
- Not-for-profit industry association, dedicated to sustainable plastics recycling and to minimizing plastic waste to landfill.
- Algonquin to Adirondacks Conservation Initiative (A2A)
- Dedicated to the conservation and sustainable use of the lands between Algonquin Provincial Park, ON and Adirondack State Park, NY.
- Arctic Borderlands Ecological Knowledge Society
- Monitors and assesses ecosystem changes in the range of the Porcupine Caribou Herd and adjacent coastal and marine areas.
- Arctic Energy Alliance
- Nonprofit society that seeks to reduce the costs and environmental impacts of energy and utility services in the Northwest Territories.
- Beaconsfield Environmental Committee (BEC)
- Educational resource on issues concerning the local environment. Features information on pesticide overuse and organic lawn care.
- Bedeque Bay Environmental Management Association
- Provides opportunities for local citizens to conserve and enhance their watershed through planning, education, projects, and partnerships.
- Blomidon Naturalists Society
- Natural history of Nova Scotia, including birds, mammals, fish, astronomy, rocks, fossils, flora, etc.
- Burns Bog Conservation Society
- Working to preserve one of the largest raised peat bogs on the West Coast of the Americas.
- Canadian Arctic Resources Committee (CARC)
- Involved in researching, publishing, public advocacy, and litigation, in accord with Arctic environmental and cultural sustainability.
- Canadian Environmental Law Association (CELA)
- Nonprofit, public interest organisation advocating environmental protection through legislation and citizen action.
- Canadian Environmental Network (CEN)
- Supports, facilitates, and advances the work of its member groups to protect the Earth and promote ecologically sound ways of life.
- Canadian Institute for Environmental Law and Policy
- Leadership in the development of environmental law and policy that promotes the public interest and the principles of sustainability.
- Canadian Nature Federation@
- Canadian Organization for Tropical Education and Rainforest Conservation
- COTERC teaches rainforest conservation in schools and runs a biological station in Costa Rica.
- Canadian Parks and Wilderness Society (CPAWS) Edmonton Chapter
- Maintains biodiversity and wilderness through the establishment of protected areas and the promotion of natural resource use that is sustainable for nature, communities, and the economy.
- Caribou Management Board
- Aims to conserve caribou herds (Beverly and Qamanirjuaq) for aboriginal communities and for the future.
- Centre for Indigenous Environmental Resources
- Helping First Nations deal with and have input in environmental issues, and enhance the links between First Nations in Canada and indigenous peoples throughout the world.
- Centre for International Sustainable Development Law (CISDL)
- Dedicated to the understanding, development, and implementation of international sustainable development law.
- Clean Nova Scotia
- Comité de bassin de la rivière Fouquette
- Membres travaillent à améliorer et à préserver la qualité de l'eau de la rivière, et à assurer la pérennité de la frayère à éperlan arc-en-ciel.
- Comox Valley Dahlia Society
- Features a message board, club calendar, photos, and more.
- CPAWS - New Brunswick Chapter
- Provincial chapter of Canadian Parks and Wilderness Society, a nonprofit NGO dealing with natural areas conservation.
- David Suzuki Foundation@
- EcoAction 2000
- Programme that helps Canadians take action in support of a healthy environment.
- Ecodesign Resource Page
- Nonprofit group providing product and literature resource material and search services for ecological design projects.
- EKES (East Kootenay Environmental Society)
- Works to protect biodiversity and create sustainable communities in southeastern BC.
- Elora Centre for Environmental Excellence (ECEE)
- Helps communities across Canada become more green through training and other services.
- Encorp Pacific@
- Environment Haliburton
- Aims to address issues facing the Haliburton Highlands through projects and public education.
- Équiterre
- Supports and promotes ecological, socially responsible projects and campaigns.
- Essex Region Conservation Authority
- Offers information regarding conservation areas, administration, education, and more.
- Evergreen Foundation
- Dedicated to preserving and restoring natural areas in the urban environment through education and community action projects. Pollinator monthly e-mail update.
- Festive Earth Society
- Aims to foster a healthy relationship between people and their watersheds by undertaking educational programmes and publications, special events, and trade shows.
- Fiducie foncière du Mont Pinacle
- Nonprofit organisation with the aim of protecting the earth for future generations.
- Field Botanists of Ontario
- Offers membership information, activities, and more.
- Forest Alliance of British Columbia
- Nonprofit citizen's organisation working to balance a healthy environment and a strong economy; news, info, screen savers and more.
- Forest Policy Network
- Resources for those interested in issues related to Canadian and global forest policy.
- Fraser Headwaters Alliance
- Its mission is to maintain and restore ecoystem health and support ecologically sustainable human communities and economies in the Fraser Headwaters bioregion.
- Fraser Valley Dahlia Society
- Contains members, meeting information, and links.
- Fraser Valley Regional Watersheds Coalition
- Working to promote the understanding and action of communities in the Fraser Valley area to achieve healthy watersheds and the communities that they support.
- Friends of the Earth
- Nonprofit organisation dedicated to saving the environment through research, education, and advocacy.
- Fundy Model Forest, The
- Actively involved in projects spanning nine subject areas including wildlife, water quality, biodiversity, wood supply, socio-economics, recreation, soils, management planning, education and communications.
- Fur-Bearers, The
- Nonprofit society dedicated to ending the use of cruel trapping methods. Offers anti-trapping videos, photographs, poster download, and more.
- Go for Green
- Mission is to encourage outdoor physical activity that protects, enhances, or restores the environment.
- Green Building Information Council
- Works to advance the energy and environmental performance of buildings through the creation, exchange and application of appropriate and timely information.
- Green Communities Association
- Nonprofit community enterprises aiming to increase the uptake of green products and services. Information provided on how to grow a green community .
- Greenpeace Canada
- Updates on Canadian campaigns, how you can get involved, information resources, and apparel.
- Halifax Field Naturalists (HFN)
- Information on field trips, newsletter, the executive board, and more for those interested in conservation and Nova Scotia's natural history.
- Halton Region Conservation Authority
- Promoting the wise use of natural resources in the fields of water, woodlands, and wildlife. Provides information about its services, conservation areas, and Glen Eden Ski Area.
- KIVU Inc.
- Canadian organisation forging guidelines to integrate environmental assessments and traditional knowledge for development projects and implementation.
- Lakehead Region Conservation Authority
- Manages vital land and water resources in the Lakehead Watershed. Activities include flood control, education, and study.
- Lambton Wildlife Inc.
- Nonprofit organisation of nature enthusiasts in Lambton, Canada. Site features history, membership info, activities, and articles about nature.
- Living Legacy Trust
- Independently-managed government fund invests in natural resource management projects in northern Ontario. Publications and application information provided.
- Manitoba Product Stewardship Corporation (MPSC)
- Introduced to encourage the expansion of convenient and efficient recycling services across Manitoba.
- Marine Ecology Station
- Operates educational programmes year-round for school and college groups as well as for other organised groups and indivduals.
- Meewasin Valley Authority
- Working to protect the natural and cultural heritage of the South Saskatchewan River Valley. Offers educational programmes and projects.
- Miistakis Institute for the Rockies
- Focusing on transboundary ecosystem management.
- Millennium Foundation of Canada
- Muskoka Heritage Foundation
- Includes information on preservation and conservation programmes and the Muskoka Trust.
- Nanaimo Area Land Trust (NALT)
- Mission to identify, preserve and foster the stewardship of areas of natural beauty, valuable wildlife habitat, and urban green space.
- Nature Conservancy Canada (NCC) BC Region
- Dedicated to preserving ecologically significant natural areas in British Columbia through purchase, land donation, and conservation agreement.
- New Brunswick Precipitation Monitoring Program
- Acid Rain, Long Range Transport of Pollutants
- North American Commission for Environmental Cooperation (NACEC)
- Effort of Mexico, Canada, and the USA working to address environmental concerns, help prevent conflicts, and to promote the enforcement of environmental law.
- North Columbia Environmental Society (NCES)
- Promotes the conservation, preservation, and restoration of the natural environment in the North Columbia region.
- Northern Coordinated Action for Recycling Enterprises
- Coordinating recycling enterpises with all levels of governments and organisations.
- Northwatch
- Regional coalition of environmental and citizen organisations and individual members, operating throughout northeastern Ontario.
- Nuntzi
- A non-government, non-industry dominated forum on many matters such as environment, resource use, economics, cultural diversity, controlling government and industry
- Oak Ridges Moraine
- One of the last remaining continuous green corridors in southern Ontario. It is still partially forested and is one of the last refuges for forest birds in all of southern Ontario.
- Oak Ridges Moraine Foundation
- Vibrant ecosystem widely acknowledged as a model for successful preservation, protection, and restoration of landscapes.
- Ontario Association for Impact Assessment
- Forum for advancing innovation, development, and communication in impact assessment, particularly as a tool to achieve sustainable development objectives.
- Ontario Public Interest Research Group (OPIRG)@
- Otesha Project
- Young people dedicated to empowering and enabling their generation to become global citizens, with a focus on environmental and social justice issues.
- Ottawa Orchid Society
- Meets monthly, and holds an annual orchid show in April at Nepean Sportsplex in Ottawa.
- Pacific Rim Dahlia Society
- Includes show results and growing guide.
- Partners FOR the Saskatchewan River Basin (PFSRB)
- Promotes sustainable tourism within Western Canada's Saskatchewan River Basin. Features a slide show.
- Pembina Institute of Appropriate Development
- Involved in environmental education, research, public policy development, and corporate environmental management services.
- Petroleum Recovery Institute (PRI)
- Nonprofit working to develop new technologies for improved oil and gas recovery.
- Quebec Dahlia Society / Société québécoise du dahlia
- Offers general information, photos, and events calendar. Also in French.
- Recycling Council of Alberta
- Promotes waste reduction, recycling, and resource conservation.
- Rivershed Society of British Columbia (RSBC)
- Features information on the Spirit of the Salmon Swim, education programmes, River Works Fund, and other activities to promote sustainable living.
- Salmon Preservation Association for the Waters of NF (SPAWN)
- Salmon sport fishing organisation dedicated to conservation and enlightened angling. Includes Atlantic Salmon statistics and fly patterns.
- Salmon River Enhancement Society
- Citizens working to protect and enhance Langley's watershed.
- Sarnia-Lambton Environmental Association
- Co-operative of industrial companies monitoring environmental quality - air, land, and water - in Lambton County.
- Saskatchewan Dutch Elm Disease Association
- Working to preserve the American Elm in Saskatchewan.
- Saskatchewan Wetland Conservation Corporation
- Manages and protects the quality of Saskatchewan's water supplies through legislation, policies, programmes, and education.
- Science Outreach Athabasca
- Promoting the earth sciences and an understanding of the Athabasca River basin.
- Shuswap Naturalist Club
- Organises field trips, lectures, and presentations on nature and conservation.
- Sierra Club of British Columbia
- Dedicated to protecting BC's wildlands and wildlife, particularly the ancient temperate rainforests.
- Sierra Club of Canada@
- Sierra Legal Defence Fund
- Protects environment by upholding and enforcing the law including legal representation to individuals and groups fighting environmental battles.
- Skies Above Foundation
- focuses on environmental issues and environmental education related to the atmosphere, especially climate change and ozone depletion.
- Society for Ecological Restoration - Ontario Chapter
- Focusing on the Ontario, Canada region and striving to share ideas and initiatives across borders and around the globe.
- Society for Soundscape Awareness and Protection
- To fight noise pollution and foster the right to quiet.
- Society Promoting Environmental Conservation (SPEC)
- Actively working to protect the ecosystems of BC, focusing on urban environmental issues. Features newsletter, events, and campaign news.
- St. Lawrence River Institute of Environmental Sciences
- Environmental research centre located in Cornwall, Ontario, Canada. Established as a local community organisation to educate and research the St. Lawrence River ecosystem.
- Steelhead Society of BC, The
- Nonprofit watershed conservation organisation dedicated to protecting, enhancing, and restoring British Columbia's wild salmon and steelhead habitat.
- Sustainable Forestry & Certification Watch
- Enhancing the understanding of forest certification, particuarly regarding sustainable forest management, international forest policy, trade in forest products and consumer choice.
- Thames River Anglers Association
- Group of anglers working to preserve the fisheries in the Thames River watershed.
- TheGreenPages.ca
- National network of eco-minded individuals whose mission is to empower and support students, educators, and communities by connecting them to information for the purpose of making meaningful contributions towards environmental sustainability
- Thousand Islands Area Residents Association (TIARA)
- Association of local landowners that aims to preserve and improve the present character of the Thousand Islands area with emphasis on the environment.
- Toronto and Region Conservation Authority
- Committed to protecting, restoring, and celebrating the natural environment in the Toronto region.
- Trees for Life Canada
- Children's environmental education programme for teachers and leaders. Teaches children about the importance of trees through the "Grow-A-Tree" programme.
- Tropical Conservancy
- Working to develop and advance the pool of scientific knowledge of all life forms essential for their comprehensive and sustainable management, conservation, and use.
- Trout Unlimited Canada@
- Vancouver Natural History Society
- Vegan Voices
- Vegan activist group based in Vancouver, BC, Canada. Organises vegan/vegetarian social events, animal rights protests, and other events.
- Veins of Life Watershed Society
- Group of citizens leading environmental initiatives in the Capital Regional District of Victoria, British Columbia.
- West Coast Environmental Law
- Public interest group working in local municipalities to international forums in order to establish laws and policies to protect health and environment.
- Western Canada Wilderness Committee
- Works for the preservation of wilderness areas, and focus public attention on logging practices, biodiversity, and conservation of natural resources.
- World Wildlife Fund (WWF) Canada
- Species and habitat information from the Pacific Ocean to the Arctic Circle, plus news of the campaign to reduce chemicals and pesticides.
- York Region Nature Forum
- A forum for environmental issues in York Region and an informal acess point to help people become involved.
- Zoocheck Canada
- National animal protection charity established to protect wildlife in captivity and in the wild.
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