Directory of nonprofits by category

There are hundreds of different types of nonprofits in the United States. At a high level, hospitals and universities are the biggest drivers in the sector by revenue and number of employees. Foundations are the most numerous, and also have the third most amount of assets.
Methodology: Cause IQ mines all tax-exempt organizations that file a Form 990 or 990PF with the IRS. We exclude Form 990EZ and Postcard filers, which are high in number but very small in size. We collect and aggregate this information from OCR'd paper taxreturns, XML e-file taxreturns, IRS-provided extract, the Business Master File, and Cause IQ secret sauce for data cleaning, categorization, classification, analytics, etc.

General categories of nonprofits

CategoryNonprofitsRevenues
 
82,601
 
$174,588,014,113
 
41,265
 
$402,395,316,060
 
29,037
 
$60,177,060,711
 
28,535
 
$135,392,333,202
 
24,637
 
$40,705,505,952
 
22,423
 
$43,049,462,080
 
20,610
 
$1,308,365,046,631
 
19,113
 
$29,305,839,221
 
12,519
 
$39,671,291,151
 
11,825
 
$106,791,716,658
25 categories

All types of nonprofits

CategoryNonprofitsRevenues
 
76,090
 
$126,217,833,347
 
10,712
 
$22,586,846,865
 
8,893
 
$22,284,859,990
 
6,186
 
$1,972,592,746
 
5,842
 
$2,496,670,412
 
5,618
 
$7,321,074,831
 
5,598
 
$13,622,129,428
 
5,219
 
$6,089,288,419
 
4,665
 
$2,191,342,418
 
4,227
 
$10,717,690,040
327 categories

Directory of nonprofits by category