Sierra Club is an environmental organization that limits greenhouse emissions, clean energy solutions, environmental issues, green transportation, resilient habitats, and safeguarding wildlife communities. The firm employs more than 400 employees and hundreds of volunteers and members. Sierra Club works on a wide variety of local and national environmental issues. John Muir founded Sierra Club in 1892, and its headquarter is based in San Francisco, California, United States. The firm is currently engaged in lobbying politicians to promote environmental policies. The company focuses on promoting sustainable energy, mitigating global warming, and reducing the use of coal. Sierra Club provides competitive pay packages, healthcare benefits, and other perks to its employees.