EcoSikh educates Sikhs around the world about environmental concerns, encouraging reverence for all creation. Ravneet Pal Singh is the project manager.

The Asian Art Museum of San Francisco is the only museum in the Western Hemisphere with a gallery devoted to Sikh art. Contact the director of public relations.

The Sikh Religious Society of Arizona runs the Arizona Sikh Gurdwara in Phoenix.

The Becket Fund is a public-interest law firm in Washington, D.C., that works to protect the free expression of all religious traditions. Stephanie Keenan handles media inquiries.

Dr. Gurinder Singh Mann is a professor of global and religious studies at the University of California, Santa Barbara, where he is the director of the Center for Sikh and Punjab Studies. He has written widely about Sikhism and other Eastern religions in the United States.

The Council of Khalistan is a lobbying group based in Washington, D.C. that wants to establish a separate Sikh homeland in India. Gurmit Singh Aulakh is the Council’s president. Contact through the website.

The Sikh American Legal Defense and Education Fund (SALDEF – formerly Sikh Mediawatch and Resource Task Force, or SMART) is the oldest Sikh American civil rights, advocacy and educational organization. SALDEF works to empower Sikh Americans through advocacy, education and media relations.

The Sikh Coalition in New York is an advocacy group established by several Sikh groups across the United States after the 9/11 attacks to help protect Sikh civil rights. Nimarta Kaur is the media and communications director.

The Sikh Foundation is a nonprofit organization based in Palo Alto, Calif., that promotes Sikh culture, art and heritage, especially in the West and to young people.