MacArthur selected a set of 14 funders to create a smaller comparison group that more closely resembles MacArthur in scale and scope.
| Custom Cohort |
|---|
| Andrew W. Mellon Foundation |
| Bill & Melinda Gates Foundation |
| Carnegie Corporation of New York |
| Ford Foundation |
| Gordon and Betty Moore Foundation |
| John D. and Catherine T. MacArthur Foundation |
| John S. and James L. Knight Foundation |
| Margaret A. Cargill Foundation |
| Open Society Foundations |
| Robert Wood Johnson Foundation |
| The David and Lucile Packard Foundation |
| The Rockefeller Foundation |
| The William and Flora Hewlett Foundation |
| W.K. Kellogg Foundation |
CEP also included 16 standard cohorts to allow for comparisons to a variety of different types of funders.
| Cohort Name | Count | Description |
| Small Grant Providers | 35 | Funders with median grant size of $20K or less |
| Large Grant Providers | 82 | Funders with median grant size of $200K or more |
| High Touch Funders | 34 | Funders for which a majority of grantees report having contact with their primary contact monthly or more often |
| Intensive Non-Monetary Assistance Providers | 32 | Funders that provide at least 30% of grantees with comprehensive or field-focused assistance as defined by CEP |
| Invitation-Only Grantmakers | 71 | Funders that make at least 90% of grants by invitation only |
| Responsive Grantmakers | 88 | Funders that make at most 10% of grants by invitation only |
| International Funders | 48 | Funders that fund outside of their own country |
| European Funders | 25 | Funders that are headquartered in Europe |
| Cohort Name | Count | Description |
| Funders Giving Less Than $5 Million | 52 | Funders with annual giving of less than $5 million |
| Funders Giving $50 Million or More | 59 | Funders with annual giving of $50 million or more |
| Cohort Name | Count | Description |
| Private Foundations | 145 | All private foundations in the GPR dataset |
| Family Foundations | 69 | All family foundations in the GPR dataset |
| Community Foundations | 33 | All community foundations in the GPR dataset |
| Health Conversion Foundations | 29 | All health conversation foundations in the GPR dataset |
| Corporate Foundations | 17 | All corporate foundations in the GPR dataset |
| Cohort Name | Count | Description |
| Funders Outside the United States | 29 | Funders that are primarily based outside the United States |
| Recently Established Foundations | 67 | Funders that were established in 2000 or later |
