100 Most Popular Non-governmental Organizations in United States 2026 — by Audience Size

How to read this list

Rank

Position in the Top 100, sorted by audience size from largest to smallest. Updated weekly.

Audience size

Estimated number of unique people in United States who actively engage with this audience, derived from anonymized search-behavior signals.

Country share

Share of the global audience that is active in United States. A higher value means the audience is more locally concentrated here.

Avg age

Average age in years across the people who engage with this audience in United States, derived from anonymized search-behavior signals. A dash means demographic data is not yet available.

Female share

Share of women among the people who engage with this audience in United States. 50% is gender-balanced; values above mean female-skewed, below mean male-skewed.

Ranking

Rank	Audience	Audience size	Country share	Avg age	Female share	Subtype
76	OOptical Society	82k	19.3%	43.4	61.9%	Non-governmental organization
77	CCenter for Science in the Public Interest	80k	97.6%	42.6	60.2%	Non-governmental organization
78	AAmerican Preppers Network	80k	73.6%	48.3	30.3%	Non-governmental organization
79	RRebuilding Together	78k	97.1%	49.6	57.3%	Non-governmental organization
80	EEuropean Youth Parliament	77k	83.2%	—	—	Non-governmental organization
81	IInternational Association for the Study of Pain	76k	62.6%	38.5	47.5%	Non-governmental organization
82	TThe Climate Reality Project	68k	68.9%	37.2	57.1%	Non-governmental organization
83	CChildren's Defense Fund	66k	99.6%	30.8	83.4%	Non-governmental organization
84	BB'nai B'rith	66k	60.5%	45.4	56.8%	Non-governmental organization
85	WWorld Zionist Organization	66k	45.5%	52.1	56.7%	Non-governmental organization
86	CCannabis Activist Network	64k	68.5%	31.5	24.1%	Non-governmental organization
87	NNational Partnership for Women & Families	62k	96.8%	41.6	86.2%	Non-governmental organization
88	SSocialist International	60k	15.7%	42.4	36.0%	Non-governmental organization
89	TTurtle Island Restoration Network	59k	92.9%	44.9	67.5%	Non-governmental organization
90	MMutual UFO Network	59k	82.8%	38.5	34.7%	Non-governmental organization
91	HHuntington's Disease Society of America	58k	99.3%	46.4	80.2%	Non-governmental organization
92	AAmerican Humane Association	55k	63.9%	46.1	73.3%	Non-governmental organization
93	NNefesh B'Nefesh	54k	77.7%	42.2	60.3%	Non-governmental organization
94	NNational Association of the Deaf (United States)	52k	89.4%	41.7	68.6%	Non-governmental organization
95	BBBYO	52k	73.7%	36.5	63.2%	Non-governmental organization
96	AASCD	50k	62.8%	33.8	62.8%	Non-governmental organization
97	GGospel for Asia	49k	99.3%	46.0	75.3%	Non-governmental organization
98	BBioneers	49k	84.8%	41.6	60.1%	Non-governmental organization
99	CCode Pink	43k	40.9%	43.8	64.0%	Non-governmental organization
100	TThe Archaeological Conservancy	41k	98.2%	47.5	43.0%	Non-governmental organization

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Frequently asked questions

How is this list of the most popular non-governmental organizations compiled?

Rascasse aggregates anonymized search-behavior signals across United States and ranks each non-governmental organization by its estimated audience size. Only entries with at least 5 measured entities are listed.

How often is the list updated?

The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.

What is the largest non-governmental organization in United States?

UNICEF currently leads with an estimated audience of 3.3M people in United States.

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