Highly recommend you go through the whole study, Aga Khan Foundation ranks the most efficient.
2007 Special Events Study
May 1, 2007
During the spring and summer months, it seems as though charities hold special fundraising events almost every weekend. We all receive requests to attend and support charity-sponsored events, ranging from the American Cancer Society’s “Relay for Life” to the Cleveland Animal Protective League’s “Fur Ball”, from spring galas to bowl-a-thons to (insert mildly strenuous physical activity here)-a-thons. But, as a donor, does it make sense to support these special events? Or would the organization be better served by you skipping the 5K and making a direct contribution? Our users have repeatedly asked us these questions, so we decided to do what we do best, compile and analyze the data, and give you some answers.
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The top five most efficient are spread across several different categories, and the majority receive a 3 or 4-star Charity Navigator rating.
Most Efficient
| Charity Name | Category | Region | Special event efficiency | Fundraising efficiency |
Aga Khan Foundation, USA |
International | Mid-Atlantic | $ 0.003 | $ 0.01 |
Ismailimail 
This is good Foundation, I have read every sphere about your activities, I like too much that you pay much attention to the sphere of education, i know that education in KG is the most weak sphere, and majority need just qualified help, support to develop that,
With best regards
Sincerely Yours
Murzabek kyzy Elmira
Bishkek, Kyrgyzstan
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