100 Most Popular Non-governmental Organizations in United Kingdom 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 Kingdom who actively engage with this audience, derived from anonymized search-behavior signals.

Country share

Share of the global audience that is active in United Kingdom. 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 Kingdom, 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 Kingdom. 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	AAmerican Preppers Network	2k	1.9%	43.2	35.6%	Non-governmental organization
77	NNational Action Network	2k	1.9%	47.0	50.4%	Non-governmental organization
78	IIslamic Relief USA	1.7k	1.1%	46.7	45.1%	Non-governmental organization
79	WWorld Vision Australia	1.7k	0.6%	28.8	100.0%	Non-governmental organization
80	MMarch of Dimes	1.5k	0.4%	26.4	100.0%	Non-governmental organization
81	DDiabetes Hands Foundation	1.4k	3.2%	50.0	54.9%	Non-governmental organization
82	FFood & Water Watch	1.4k	5.0%	38.0	61.6%	Non-governmental organization
83	SSOS Mediterranee	1.4k	3.6%	44.9	59.8%	Non-governmental organization
84	AArbor Day Foundation	1.3k	0.5%	48.6	73.6%	Non-governmental organization
85	PPop Warner Little Scholars	1.3k	4.4%	35.5	41.3%	Non-governmental organization
86	BBat Conservation International	1k	0.9%	43.6	67.3%	Non-governmental organization
87	HHeadmasters' and Headmistresses' Conference	1k	36.9%	40.3	52.6%	Non-governmental organization
88	FFreelancers Union	989	1.0%	37.1	49.1%	Non-governmental organization
89	HHateAid	983	0.3%	39.1	53.8%	Non-governmental organization
90	AAmerican Society of Interior Designers/ASID	893	0.6%	41.3	69.7%	Non-governmental organization
91	FFellowship of Christian Athletes	874	0.5%	54.8	62.5%	Non-governmental organization
92	LLabor unions in the United States	868	1.0%	34.4	31.3%	Non-governmental organization
93	SSouthwestern Exposition and Livestock Show	860	1.7%	41.6	54.0%	Non-governmental organization
94	NNational Council of State Boards of Nursing	807	3.5%	36.4	56.5%	Non-governmental organization
95	IInternational Union of Architects	761	2.3%	42.1	64.0%	Non-governmental organization
96	SSolidarités International	710	0.6%	41.2	56.3%	Non-governmental organization
97	OOrdre De Malte	695	0.3%	48.8	65.0%	Non-governmental organization
98	AAmerican Board of Family Medicine	667	0.3%	39.0	63.5%	Non-governmental organization
99	11Percent For The Planet	623	6.3%	43.7	61.6%	Non-governmental organization
100	MMutual UFO Network	594	0.8%	41.0	42.3%	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 Kingdom 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 Kingdom?

UNICEF currently leads with an estimated audience of 1.6M people in United Kingdom.

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