American Society for Parenteral and Enteral Nutrition

The Association of Zoos and Aquariums (AZA), originally the American Association of Zoological Parks and Aquariums, is an American 501(c)(3) nonprofit organization founded in 1924 and dedicated to the advancement of zoos and public aquariums in the areas of conservation, education, science, and recreation. AZA is headquartered in Silver Spring, Maryland, United States, and accredits zoos. There were 238 accredited facilities as of 2019, primarily in the US, and also a handful in eleven other countries.

Silver Spring is a Washington Metro and MARC Train station in Montgomery County, Maryland on the Red Line and Brunswick Line. On the Metro, Silver Spring is the first station in Maryland of the eastern end of the Red Line, and is the second-busiest Metro station in Maryland after Shady Grove. North of this station, it goes underground as it heads towards the underground terminus of Glenmont. Silver Spring serves the suburb of Silver Spring, and is located east of the intersection between Colesville Road (Route 384) and East-West Highway (Route 410). In addition to rail service, several Metrobus and Ride On bus routes also serve the station at the Paul S. Sarbanes Transit Center, formerly known as the Silver Spring Transit Center. Silver Spring will be a stop for the Purple Line light rail system, which is currently under construction.

The Office of Ocean Exploration Research (OER) is a division of the United States National Oceanic and Atmospheric Administration (NOAA). It is run under the auspices of the Office of Oceanic and Atmospheric Research (OAR). The Office facilitates ocean exploration by supporting expeditions, exploration projects, and related field campaigns. The OER mission has four components: Mapping the physical, biological, chemical and archaeological aspects of the ocean; Understanding ocean dynamics at new levels to describe the complex interactions of the living ocean; Developing new sensors and systems to regain U.S. leadership in ocean technology; Reaching out to the public to communicate how and why unlocking the secrets of the ocean is well worth the commitment of time and resources, and to benefit current and future generations.

The National Association of the Deaf (NAD) is an organization for the promotion of the rights of deaf people in the United States. NAD was founded in Cincinnati, Ohio, in 1880 as a non-profit organization run by Deaf people to advocate for deaf rights, its first president being Robert P. McGregor of Ohio. It includes associations from all 50 states and Washington, DC, and is the US member of the World Federation of the Deaf, which has over 120 national associations of Deaf people as members. It has its headquarters in Silver Spring, Maryland. All of its presidents were late-deafened until the 1970s. It is in charge of the Miss Deaf America Ambassador programs, which are held during the association's conventions. It has advocated for deaf rights in all aspects of life, from public transportation to education.

The Association of University Centers on Disabilities (AUCD) is an American institution that operates in the disability field, instituted after the Community Mental Health Act of 1963. Currently, AUCD is a network that represents 67 University Centers for Excellence in Developmental Disabilities (UCEDD) in every state and territory in the United States. AUCD has also established 43 Maternal and Child Health (MCH), Leadership Education in Neurodevelopmental and Related Disabilities (LEND) programs, and 15 Eunice Kennedy Shriver Intellectual and Developmental Disabilities Research Centers (IDDRC).

The National Weather Service (NWS) is an agency of the United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weather-related products to organizations and the public for the purposes of protection, safety, and general information. It is a part of the National Oceanic and Atmospheric Administration (NOAA) branch of the Department of Commerce, and is headquartered in Silver Spring, Maryland, within the Washington metropolitan area. The agency was known as the United States Weather Bureau from 1890 until it adopted its current name in 1970.The NWS performs its primary task through a collection of national and regional centers, and 122 local Weather Forecast Offices (WFOs). As the NWS is an agency of the U.S. federal government, most of its products are in the public domain and available free of charge.

The Anxiety and Depression Association of America (ADAA) is a U.S. nonprofit organization located in Silver Spring, Maryland dedicated to increasing awareness of and improving the diagnosis, treatment, and cure of anxiety disorders in children and adults. The organization is involved in education, training, and research for anxiety and stress-related disorders. Their mission statement is to promote the prevention, treatment, and cure of anxiety, depression, and other stress-related disorders through education, practice, and research.Notably, they have published several self-improvement books, such as Facing Panic, and Triumph Over Shyness: Conquering Social Anxiety Disorder, in an attempt to assist those with anxiety disorders.

Street Law (also known as StreetLaw) is a global program of legal and civics education geared at secondary school students. Street Law is an approach to teaching practically relevant law to grassroots populations using interactive teaching methodologies. Elements of practical law taught include awareness of human rights/civil rights, criminal breaches and transgression, democratic principles, conflict resolution, the advocacy process, criminal and civil law, employment and labour law, family law, and consumer rights.

The AFI Docs (formerly Silverdocs) documentary film festival is an American international film festival created by the American Film Institute and the Discovery Channel. It is held every year in Silver Spring, Maryland and Washington, D.C. Started in 2003, the festival is held for five days in June at the AFI Silver Theatre as well as several locations in Washington, D.C.

AFI Silver Theatre and Cultural Center or commonly known as AFI Silver is a three-screen movie theater complex in downtown Silver Spring, Maryland, north of Washington, D.C.

FairVote is a 501(c)(3) organization and lobbying group in the United States. It was founded in 1992 as Citizens for Proportional Representation to support the implementation of proportional representation in American elections. Its focus changed over time to emphasize instant-runoff voting (IRV), a national popular vote, and universal voter registration. It changed its name to the Center for Voting and Democracy in 1993 and to FairVote in 2004. Since 2018, FairVote has also conducted campaigns to oppose alternative voting reforms, including approval and STAR voting. In 2024, it launched a successful campaign to maintain first-past-the-post (FPP) voting in Eugene, with FairVote lobbyists preventing adoption of a ballot initiative to replace FPP with STAR voting.

The American Nurses Association (ANA) is a 501(c)(6) professional organization to advance and protect the profession of nursing. It started in 1896 as the Nurses Associated Alumnae and was renamed the American Nurses Association in 1911. It is based in Silver Spring, Maryland and Jennifer Mensik Kennedy PhD, RN, NEA-BC, FAAN is the current president. The ANA states nursing is the protection, promotion, and optimization of health and abilities, prevention of illness and injury, alleviation of suffering through the diagnosis and treatment of human response, and advocacy in the care of individuals, families, communities, and populations.