| 1 | J a & Kathryn Albertson Foundation INC Boise | $288.7M | $0 | $600.2M |
| 2 | Islands Foundation Boise | $110.4M | $0 | $241.8M |
| 3 | Micron Technology Foundation INC Boise | $49.3M | $0 | $126.2M |
| 4 | Greg Carr Foundation INC Idaho Falls | $46.4M | $0 | $53.8M |
| 5 | Idaho Community Foundation INC Boise | $46.1M | $38.9M | $260.6M |
| 6 | Holland M Ware Charitable Foundation Eagle | $40.8M | $0 | $221.0M |
| 7 | Mdekfse Family Foundation Meridian | $19.5M | $0 | $3.6M |
| 8 | Vande Steeg Foundation INC Meridian | $19.1M | $0 | $30.2M |
| 9 | Lamb Weston Charitable Foundation Eagle | $9.8M | $0 | $12.9M |
| 10 | Hop & Mae Adams Foundation Boise | $9.4M | $0 | $48.6M |
| 11 | Shoemaker Family Fund INC Eagle | $9.2M | $0 | $22.2M |
| 12 | Old Coot & Maggie Foundation Irrv Tr Boise | $8.5M | $0 | $4.4M |
| 13 | Stevens Family Foundation INC Ketchum | $7.0M | $0 | $17.7M |
| 14 | Oneroot Foundation Ketchum | $6.7M | $0 | $1.1M |
| 15 | Allison Ranch Ministries Foundation INC Boise | $6.1M | $0 | $20.2M |
| 16 | Julius C Jeker Foundation INC Boise | $6.0M | $0 | $14.6M |
| 17 | Jeker Family Trust Boise | $6.0M | $0 | $14.3M |
| 18 | United Way of Treasure Valley INC Boise | $5.5M | $5.5M | $6.2M |
| 19 | Angels Among US INC Garden City | $5.3M | $0 | $9.9M |
| 20 | Shawshank Foundation Meridian | $5.2M | $0 | $2.6M |
| 21 | Hawkins Family Foundation Boise | $5.0M | $0 | $8.1M |
| 22 | Langan Barber Foundation Boise | $5.0M | $0 | $10.8M |
| 23 | Larry and Marianne Williams Family Foundation Boise | $5.0M | $0 | $11.5M |
| 24 | Arvy Foundation INC Meridian | $4.9M | $0 | $9.2M |
| 25 | Tzo-nah Fund Boise | $4.3M | $0 | $1.3M |
| 26 | Camille Beckman Foundation INC Eagle | $4.1M | $0 | $8.9M |
| 27 | Jae Foundation Twin Falls | $3.8M | $3.3M | $5.6M |
| 28 | Hansberger Foundation Boise | $3.8M | $0 | $8.2M |
| 29 | The Buuck Foundation INC Meridian | $3.7M | $0 | $969K |
| 30 | Mona and Edward Zander Family Foundation INC Ketchum | $3.5M | $0 | $9.0M |
| 31 | Marcus Anderson Family Foundation Hayden | $3.5M | $0 | $3.1M |
| 32 | College of Western Idaho Foundation INC Nampa | $3.3M | $2.1M | $7.3M |
| 33 | John and Elaine French Family Foundation Ketchum | $3.0M | $0 | $3.8M |
| 34 | Martin and Shirley Burns Family Foundation Meridian | $2.9M | $0 | $12.0M |
| 35 | Barlow a Elton Foundation Meridian | $2.7M | $0 | $2.7M |
| 36 | Idaho Power Foundation INC Boise | $2.6M | $0 | $4.7M |
| 37 | Cox Family Charitable Foundation Ketchum | $2.6M | $0 | $5.3M |
| 38 | Silk Family Foundation Ketchum | $2.6M | $0 | $5.2M |
| 39 | Bews Foundation Twin Falls | $2.3M | $0 | $18.2M |
| 40 | Kampe Family Foundation Sandpoint | $2.2M | $0 | $2.9M |
| 41 | Abigail and Jonathan Fink Family Foundation INC Meridian | $2.2M | $0 | $3.0M |
| 42 | Steven and Janet Shafran Foundation Ketchum | $2.0M | $0 | $1.1M |
| 43 | Equinox Foundation INC Sandpoint | $1.9M | $0 | $5.1M |
| 44 | Bonnie and John Jackson Foundation Meridian | $1.9M | $0 | $3.6M |
| 45 | Klein and Cole Family Foundation Meridian | $1.9M | $0 | $2.9M |
| 46 | The Deatley Family Foundation Lewiston | $1.9M | $0 | $12.8M |
| 47 | Richard Sabala Foundation INC McCall | $1.9M | $952K | $5.7M |
| 48 | Watney Foundation Sagle | $1.9M | $0 | $2.2M |
| 49 | Ame Family Foundation Meridian | $1.8M | $0 | $3.0M |
| 50 | Lee Pesky Learning Center Endowment INC Boise | $1.8M | $1.8M | $6.4M |