Updated Oct 28, 2026
Private foundations based in Idaho
169 grantmaking foundations headquartered in Idaho, holding $2.9B in assets. Ranked by grants paid in their latest 990-PF; 24 on this page say they accept applications. For foundations ranked by where their grants went, see local funders.
| Foundation | Based in | Grants paid | Median grant | Accepts applications | Assets |
|---|---|---|---|---|---|
| Holland M Ware Charitable Foundationsince 2000 | Eagle, ID | $55M56 grants · 2024 | $19K | Preselected only | $221M |
| J a & Kathryn Albertson Foundation Incsince 1966 | Boise, ID | $28M44 grants · 2024 | $223K | Yes | $600M |
| Gorongosa Project Incsince 1999 | Idaho Falls, ID | $19M1 grants · 2024 | $19M | Preselected only | $6.3M |
| Islands Foundationsince 1995 | Boise, ID | $16M81 grants · 2024 | $70K | Preselected only | $242M |
| Greg Carr Foundation Incsince 2010 | Idaho Falls, ID | $10M1 grants · 2024 | $10M | Yes | $54M |
| Laura Moore Cunningham Foundation Incsince 1964 | McCall, ID | $4.9M85 grants · 2024 | $15K | Yes | $44M |
| Angels Among US Incsince 2009 | Garden City, ID | $4.8M47 grants · 2024 | $19K | Yes | $9.9M |
| J R Simplot Foundation Incsince 1953 | Boise, ID | $4.6M25 grants · 2024 | $5,000 | Preselected only | $288M |
| Micron Technology Foundation Incsince 2000 | Boise, ID | $4.5M8 grants · 2025 | $91K | Preselected only | $147M |
| Idaho Elks Rehabilitation Hospital Incsince 1973 | Boise, ID | $4.2M7 grants · 2024 | $85K | Yes | $57M |
| Blue Cross of Idaho Foundation for Healthsince 2003 | Meridian, ID | $4.1M282 grants · 2024 | $1,000 | Preselected only | $81M |
| Simplot Company Foundation Incsince 2000 | Boise, ID | $3.8M136 grants · 2025 | $2,000 | Preselected only | $148M |
| Larry and Marianne Williams Family Foundationsince 2008 | Boise, ID | $2.8M46 grants · 2024 | $23K | Preselected only | $11M |
| Hansberger Foundationsince 2022 | Boise, ID | $1.9M25 grants · 2024 | $50K | Yes | $8.2M |
| Vande Steeg Foundation Incsince 2020 | Meridian, ID | $1.7M46 grants · 2024 | $5,000 | Preselected only | $30M |
| John H and Orah I Brandt Foundationsince 1991 | Nampa, ID | $1.7M31 grants · 2024 | $30K | Yes | $34M |
| Harold E and Phyllis S Thomas Foundationsince 1995 | Boise, ID | $1.6M35 grants · 2024 | $40K | Yes | $10M |
| The Burnap Foundation Incsince 1996 | Hailey, ID | $1.4M1 grants · 2025 | $1.4M | Preselected only | $8.8M |
| Mona and Edward Zander Family Foundation Incsince 2023 | Ketchum, ID | $1.4M31 grants · 2024 | $11K | Preselected only | $9.3M |
| John F Nagel Foundation Incsince 1990 | Eagle, ID | $1.4M20 grants · 2024 | $60K | Yes | $21M |
| Lamb Weston Charitable Foundationsince 2019 | Eagle, ID | $1.3M11 grants · 2024 | $41K | Preselected only | $13M |
| S R Simplot Foundation Incsince 2016 | Boise, ID | $1.3M5 grants · 2025 | $100K | Preselected only | $12M |
| Janice Seagraves Family Foundation Incsince 2000 | Twin Falls, ID | $1.3M82 grants · 2025 | $5,500 | Yes | $23M |
| The Gibney Family Foundation Incsince 1992 | Meridian, ID | $1.3M87 grants · 2025 | $5,500 | Preselected only | $35M |
| Lewis-Clark Valley Healthcare Foundationsince 2017 | Coeur Dalene, ID | $1.2M76 grants · 2025 | $10K | Yes | $23M |
| John Borbonus Memorial Foundationincsince 2008 | Boise, ID | $1.1M14 grants · 2025 | $78K | Preselected only | $22M |
| Arvy Foundation Incsince 2021 | Meridian, ID | $967K26 grants · 2024 | $10K | Yes | $9.2M |
| Bews Foundationsince 2016 | Twin Falls, ID | $948K34 grants · 2025 | $10K | Yes | $22M |
| Harry W Morrison Foundation Incsince 1953 | Boise, ID | $886K1 grants · 2024 | $886K | Yes | $19M |
| Chc Foundationsince 1975 | Idaho Falls, ID | $834K42 grants · 2025 | $11K | Yes | $14M |
| Chrysopolae Foundationsince 1997 | Bellevue, ID | $694K32 grants · 2025 | $10K | Preselected only | $15M |
| Morrison Center Endowment Foundation Incsince 1983 | Boise, ID | $679K9 grants · 2024 | $64K | Yes | $12M |
| Bates Family Foundationsince 2015 | Boise, ID | $650K15 grants · 2025 | $10K | Preselected only | $7.6M |
| The Lorraine Klahr Foundationsince 2021 | Caldwell, ID | $641K6 grants · 2025 | $109K | Preselected only | $10M |
| The Deatley Family Foundationsince 2008 | Lewiston, ID | $636K41 grants · 2025 | $5,000 | Yes | $14M |
| Hecla Charitable Foundationsince 2009 | Coeur D Alene, ID | $597K1 grants · 2024 | $597K | Yes | $12M |
| Hop & Mae Adams Foundationsince 2010 | Boise, ID | $579K7 grants · 2024 | $62K | Preselected only | $49M |
| Julius C Jeker Foundation Incsince 2006 | Boise, ID | $559K23 grants · 2024 | $20K | Preselected only | $15M |
| Martin and Shirley Burns Family Foundationsince 2018 | Meridian, ID | $545K16 grants · 2025 | $25K | Preselected only | $13M |
| Moscrip Family Foundation Incsince 2022 | Eagle, ID | $509K24 grants · 2025 | $13K | Preselected only | $11M |
| Pesky Family Foundation Incsince 1990 | Boise, ID | $505K61 grants · 2024 | $1,137 | Yes | $6.4M |
| Langan Barber Foundationsince 2012 | Boise, ID | $498K13 grants · 2024 | $26K | Preselected only | $11M |
| The Martine and Dan Drackett Family Foundation Incsince 2013 | Hailey, ID | $485K18 grants · 2025 | $8,500 | Preselected only | $10M |
| Jeker Family Trustsince 2006 | Boise, ID | $460K20 grants · 2024 | $13K | Preselected only | $14M |
| Camille Beckman Foundation Incsince 1995 | Eagle, ID | $456K29 grants · 2024 | $8,000 | Yes | $8.9M |
| Ida Uta Foundationsince 2007 | Nampa, ID | $421K14 grants · 2024 | $25K | Preselected only | $8.8M |
| Hawkins Family Foundationsince 2017 | Boise, ID | $388K23 grants · 2025 | $10K | Yes | $8.2M |
| Claude R & Ethel B Whittenberger Foundationsince 1971 | Caldwell, ID | $386K65 grants · 2025 | $5,000 | Yes | $5.7M |
| Robert I Wishnick Foundationsince 1952 | Dalton Gdns, ID | $384K32 grants · 2025 | $5,000 | Yes | $7.9M |
| Stevens Family Foundation Incsince 2019 | Ketchum, ID | $370K7 grants · 2024 | $25K | Preselected only | $18M |
| The Step Forward Trustsince 2019 | Boise, ID | $369K11 grants · 2025 | $7,500 | Preselected only | $8.0M |
| Shoemaker Family Fund Incsince 2024 | Eagle, ID | $355K3 grants · 2024 | $100K | Preselected only | $22M |
| Brien and Shelly Deatley Family Foundation Corporationsince 2019 | Lewiston, ID | $353K67 grants · 2025 | $5,000 | Yes | $8.4M |
| Faraway Foundationsince 1992 | Tetonia, ID | $351K39 grants · 2024 | $7,500 | Preselected only | $6.4M |
| Roger & Sybil Ferguson Charitable Foundationsince 1988 | Rexburg, ID | $343K33 grants · 2025 | $10K | Preselected only | $12M |
| Harad Family Foundationsince 2010 | Boise, ID | $341K18 grants · 2024 | $4,500 | Preselected only | $6.9M |
| Hardy Foundation Incsince 1999 | Boise, ID | $85K2 grants · 2024 | $43K | Preselected only | $25M |
| Elaine P Wynn and Family Foundationsince 2011 | Ketchum, ID | — | — | Not stated | $23M |
| Frank L Vandersloot Foundation Incsince 2003 | Idaho Falls, ID | — | — | Preselected only | $6.6M |
| Enlyst Fund Incsince 1997 | Bellevue, ID | — | — | Not stated | $6.2M |
Sources: IRS Business Master File (assets), ProPublica Nonprofit Explorer and IRS 990-PF e-file (grants paid, application policy). "Accepts applications" reflects the foundation's own Part XV checkbox.
Open grant programs in Idaho
All 2| Deadline | Grant | Funder | Award ceiling |
|---|---|---|---|
| Rollingno deadline | Idaho Commission on the Arts — Organizational GrantsStateIdaho Commission on the Arts | Idaho Commission on the Arts | Not listed |
| Rollingno deadline | Idaho Humanities Council — Humanities GrantsStateIdaho Humanities Council | Idaho Humanities Council | Not listed |
Common questions
How many private foundations are based in Idaho?
Our directory lists 169 private grantmaking foundations in Idaho with at least $1 million in assets, holding a combined $2.9B. The data comes from the IRS Exempt Organizations Business Master File and Form 990-PF.
How do I get a grant from a private foundation?
Start with foundations that already fund organizations like yours nearby. Read the grantee list on each profile, check whether the foundation accepts applications (it says so on its 990-PF), and lead with a short letter of inquiry. Many family foundations fund only organizations they already know; an introduction through a shared grantee or board member works better than a cold proposal.
Can you help us approach foundations?
Yes. Our grant writers research foundation prospects, write letters of inquiry, and build a foundation fundraising plan. Request a free consultation.