There are thousands of great nonprofits, but do you ever wonder which nonprofit organizations get the most traction?

I do, which is why I have put the time into creating the world’s top 100 nonprofit organizations list.

These nonprofits cover a whole range of range of missions from international development and disaster relief, animal welfare, to museums.

Note: Colleges, universities, and individual churches are not included on this list. For a legend explaining how the rankings are computed, scroll down past the list.

Top 100 Nonprofits on the Web

Updated November 2013

RankWebsiteLikesFollowersMoz Domain AuthorityMoz Linking Root DomainsAlexa RankGoogle Page RankCharity Navigator Rating
1National Public Radio - NPR2,979,6152,093,0049720,7166768Charity Navigator 4 Star Rating
2United Nations Children«s Fund (UNICEF)2,808,5842,266,3839564,840150548Charity Navigator 4 Star Rating
3Smithsonian Institute254,2441,072,0079512,62483568Charity Navigator 4 Star Rating
4Wikimedia Foundation3,15116,583923,435250247Charity Navigator 4 Star Rating
5World Food Program USA344,788542,459897,982383098Charity Navigator 4 Star Rating
6Human Rights Campaign1,528,288326,281866476719087Charity Navigator 4 Star Rating
7Metropolitan Museum of Art993,303634,34991625156858Charity Navigator 4 Star Rating
8Kiva199,179525,1559115,848110387Charity Navigator 4 Star Rating
9Human Rights Watch (HRW)690,523886,04593832275288Charity Navigator 4 Star Rating
10Susan G Komen Breast Cancer Foundation693,28076,6129013,623626537Charity Navigator 4 Star Rating
11Do Something400,647664,726843,794393407Charity Navigator 4 Star Rating
12Rotary Foundation of Rotary International247,788216,045919,914502347Charity Navigator 4 Star Rating
13Feeding America487,918131,983895,607460417Charity Navigator 4 Star Rating
14ACLU186,078186,793939,990326107Charity Navigator 4 Star Rating
15American Museum of Natural History266,188161,146898,887515107Charity Navigator 4 Star Rating
16Save the Children560,686781,445881,156832237Charity Navigator 4 Star Rating
17Sierra Club223,59689,487898,474295287Charity Navigator 4 Star Rating
18Charity: water271,6911,409,276866,598279916Charity Navigator 4 Star Rating
19American Heart Association412,46289,29992460166258Charity Navigator 4 Star Rating
20Habitat for Humanity250,61862,6119015,508788797Charity Navigator 4 Star Rating
21Museum of Modern Art1,483,1771,565,5469116,439198288Charity Navigator 3 star rating
22Creative Commons125,594528,4681009619449Charity Navigator 4 Star Rating
23American Red Cross556,3271,119,7909690,090187649Charity Navigator 3 star rating
24Invisible Children3,406,985283,421813,3831228256Charity Navigator 4 Star Rating
25Oxfam86,624457087864,8461046727Charity Navigator 4 Star Rating
26Best Friends Animal Society378,06599,973866,797998816Charity Navigator 4 Star Rating
27New York Public Library106,184298,44388333196537Charity Navigator 4 Star Rating
28Planned Parenthood Federation of America65,02396,935896,745250987Charity Navigator 4 Star Rating
29American Society for the Prevention of Cruelty to Animals (ASPCA)1,225,816186,3659111,276156687Charity Navigator 3 star rating
30Samaritan's Purse668,01063,809844,935851356Charity Navigator 4 Star Rating
31Green Peace191,235902,4909513,93691858Charity Navigator 3 star rating
32Environmental Defense119,73955,955885,005961347Charity Navigator 4 Star Rating
33Humane Society of the United States1,806,264215,548905,324301277Charity Navigator 3 star rating
34The Trevor Project271,587148,214854564480,7577Charity Navigator 4 Star Rating
35United States Olympic Committee2,443,663307,735893,845477587Charity Navigator 3 star rating
36World Wildlife Fund792,692339,099905,954341447Charity Navigator 3 star rating
37Zoological Society of San Diego282,29638,18986307525827Charity Navigator 4 Star Rating
38Council on Foreign Relations140,574123,96987172418807Charity Navigator 4 Star Rating
39Teach for America80,93099,012833,9721071498Charity Navigator 4 Star Rating
40Wounded Warrior Project1,316,60178,5878810,742808787Charity Navigator 3 star rating
41National Center for Missing and Exploited Children57,394253,44193228830367Charity Navigator 4 Star Rating
42Partners In Health96,842214,714842,9653791607Charity Navigator 4 Star Rating
43Conservation International Foundation96,30044,235853,4131617257Charity Navigator 4 Star Rating
44International Rescue Committee124,56244,639812,9401303437Charity Navigator 4 Star Rating
45Livestrong1,709,298566,435875,840721386Charity Navigator 3 star rating
46Girl Scouts of the USA185,13531,91585230740187Charity Navigator 4 Star Rating
47United States Fund for UNICEF396,187155,024809391231346Charity Navigator 4 Star Rating
48Natural Resources Defense Council216,215113,447929,258460507Charity Navigator 3 star rating
49Alzheimer's Association477,29332,5349214,840225647Charity Navigator 3 star rating
50International Committee of the Red Cross216,478179,839908,037823908Charity Navigator 3 star rating
51Oceana106,63196,98978976927487Charity Navigator 4 Star Rating
52William J. Clinton Foundation1,365,852294,559842,288941627Charity Navigator 3 star rating
53St. Jude's Children's Research Hospital1377713268,37088476630367Charity Navigator 3 star rating
54Make-A-Wish America477,738135,044856,582826727Charity Navigator 3 star rating
55Stand Up To Cancer (Entertainment Industry Foundation)1,044,732192,907722,0454314566Charity Navigator 4 Star Rating
56Mercy Corps82,47728,156824,411930707Charity Navigator 4 Star Rating
57Lions Clubs International Foundation102,28535,558854,854818006Charity Navigator 4 Star Rating
58Compassion International260,057141,099801,349529725Charity Navigator 4 Star Rating
59GlobalGiving46,26171,179802,585641177Charity Navigator 4 Star Rating
60Goodwill80,04217,356825,035497897Charity Navigator 4 Star Rating
61Doctors Without Borders/Medecins Sans Frontieres574,426346,997824,9952137317Charity Navigator 3 star rating (Partners International)66078597,802782,5791390276Charity Navigator 4 Star Rating
63Ted Talks3,510,8742,120,6009739,775111780 - Not Rated
64Sea Shepherd Conservatory Society556,466153,791815,0011454907Charity Navigator 3 star rating
65Art Institute of Chicago208,61874,863866,845858047Charity Navigator 3 star rating
66World Vision USA1,023,12660,079847,995458856Charity Navigator 3 star rating
67USO608,32776,591833,3101081717Charity Navigator 3 star rating
68American Cancer Society844,221424,4369431,70891848Charity Navigator 2 Star Rating
69Focus on the Family1,000,70347,084839,784263736Charity Navigator 3 star rating
70Room to Read50,587608,350842,4613277786Charity Navigator 4 Star Rating
71National 4-H Council429,81714,844792,5153987237Charity Navigator 4 Star Rating
72Ashoka37,166419,8088071744197Charity Navigator 4 Star Rating
73Monterey Bay Aquarium267,30932,622895,703991837Charity Navigator 3 star rating
74PETA (People for the Ethical Treatment of Animals)1,970,257427,504889,477143277Charity Navigator 2 Star Rating
75JFK Center for Performing Arts54,46328,368854271025607Charity Navigator 4 Star Rating
76Boys & Girls clubs of America94,26019,272852251117467Charity Navigator 4 Star Rating
77Ronald McDonald House Charities275,01522,67382863433807Charity Navigator 4 Star Rating
78World Bank PNGO Project1,119,693555,2549625,900511290 - Not Rated
79National Multiple Sclerosis Society175,93928,119876,433483297Charity Navigator 3 star rating
80Public Broadcasting Service1,540,4801,820,9508615,074152180 - Not Rated
81National Council of YMCAs of the USA229,084920082231997447Charity Navigator 4 Star Rating
82United Nations High Commissioner for Refugees329,61440,88890115503638Charity Navigator 3 star rating
83Museum of Fine Arts, Boston189,48647,332835,7871184437Charity Navigator 3 star rating
84United Way127,05623,435821,20010739507Charity Navigator 4 Star Rating
85CARE210,80454178873999788627Charity Navigator 3 star rating
86The Center for Strategic and International Studies209,61739,249853,2981153157Charity Navigator 3 star rating
87Alex's Lemonade Stand Foundation119,16559,574701,8722080826Charity Navigator 4 Star Rating
88Nature Conservancy506,722237,7299410,580493538Charity Navigator 2 Star Rating
89National Audubon Society98,73845,756876,129942657Charity Navigator 3 star rating
90The 92nd Street Y43,80823,929781,9581163357Charity Navigator 4 Star Rating
91Bill and Melinda Gates Foundation674,2331,055,469919,2164737080 - Not Rated
92Shedd Aquarium174,21419,576761152691987Charity Navigator 4 Star Rating
93WikiLeaks2,320,9832,085,0848113,709987170 - Not Rated
94Free Software Foundation16,7429539713,589491088Charity Navigator 4 Star Rating
95International Justice Mission104,92987,729743463376266Charity Navigator 4 Star Rating
96Lincoln Center for Performing Arts52,89539,881781091855827Charity Navigator 4 Star Rating
97Special Olympics686,99344,613831661810547Charity Navigator 3 star rating
98Juvenile Diabetes Research Foundation International105,59928,495865,452992057Charity Navigator 3 star rating
99Dana-Farber Cancer Institute65,70715,201782,3422098407Charity Navigator 4 Star Rating
100Friends of the National Zoo76,25356,300952,40483566Charity Navigator 3 star rating



Social – Facebook Likes and Twitter Followers
Though follower counts aren’t a perfect measure of social media authority, they are certainly a great indication and are the easiest to understand and measure. These numbers can be found by going to the primary facebook and twitter pages owned by an organization. If an organization owns multiple accounts on a single social network, we only count the largest as this eliminates inflation caused by duplicate followers.

Buzz Depth – Moz’s Open Site Explorer Domain Authority
Predicts the website’s domain ranking in search engines based on an algorithmic combination of the number of sites linking to it, the total number of links, Facebook shares & likes, tweets, and Google +1s.

Buzz Scope – Moz’s Open Site Explorer Linking Root Domains
The number of unique root domains containing at least one url linking to the website’s homepage.

Traffic – Alexa Rank
Alexa’s traffic rankings are based on the usage patterns of Alexa Toolbar users and data collected from other, diverse sources over a rolling 3 month period. A site’s ranking is based on a combined measure of reach and pageviews. Reach is determined by the number of unique Alexa users who visit a site on a given day. Pageviews are the total number of Alexa user URL requests for a site. However, multiple requests for the same URL on the same day by the same user are counted as a single pageview. The site with the highest combination of users and pageviews is ranked #1.

Google’s Opinion – Google PageRank
PageRank relies on the uniquely democratic nature of the web by using its vast link structure as an indicator of an individual page’s value. In essence, Google interprets a link from page A to page B as a vote, by page A, for page B. But, Google looks at more than the sheer volume of votes, or links a page receives; it also analyzes the page that casts the vote. Votes cast by pages that are themselves “important” weigh more heavily and help to make other pages “important.”

Responsibility and Transparency – Charity Navigator Four Star Rating Scale

Charity Navigator rates organizations based on a complex series of fiscal responsibility and transparency metrics. The final score is then mapped to a 4 star rating scale. One limitation to this metric is that not all organizations on our list are currently rated by Charity Navigator. Still, in this edition of the list we chose to include it when calculating our top 100 because of the value they bring.


  • Thousands of nonprofit organizations are reviewed in a preliminary screening to determine if their statistics are competitive enough to be ranked.
  • 300 organizations are then selected to be ranked.
  • Data is collected for each nonprofit from all 6 measured criteria (i.e., Facebook Likes, Twitter Followers, SEOmoz Domain Rank, SEOmoz Linking Root Domains, Alexa Rank, Google PageRank, and Charity Navigator Rating).
  • For each of the 7 measured criteria, each organization is ranked in comparison to all other nonprofit organizations being evaluated.
  • A composite rank for each nonprofit is determined by giving by 1/3 to social media (Likes and Followers), 1/3 weight to overall website rankings (Alexa, Domain Authority, Linking Root Domains, PageRank) and 1/3 to Charity Navigator Rating.
  • The top 100 organizations are published.