Foundations starting with I
139 private foundations with profiled giving history. Figures from IRS 990-PF filings. Search every letter at once.
Typical grant is the median of grants reported in the filing data. Application details come from the latest filing and can be out of date, so confirm them with the foundation.
1–100 of 139 foundations in this list.
| Foundation | Typical grant | Total giving | Grants reported |
|---|---|---|---|
| Indian Paintbrush Foundation IRS filing 2024 · Most giving: IN, MA, CA | $350K | $102.9M | 19 |
| Intel Foundation IRS filing 2025 · Most giving: FL, LONDON, MN | $1M | $44.4M | 13 |
| Inasmuch Foundation IRS filing 2024 · Most giving: OK, CO, CA | $10K | $41.7M | 534 |
| Imc Chicago Charitable Foundation IRS filing 2025 · Most giving: DE, CA, IL | $3K | $36.9M | 146 |
| Irving S Gilmore Foundation IRS filing 2025 · Most giving: MI, CA, TN | $25K | $29.4M | 414 |
| The Imlay Foundation Inc IRS filing 2025 · Most giving: GA | $25K | $28M | 466 |
| Issa Family Foundation IRS filing 2025 · Most giving: WY, CA, VA | $15K | $23.7M | 75 |
| The Irving Harris Foundation IRS filing 2024 · Most giving: IL, NY, SC | $25K | $22.1M | 337 |
| Imaginable Futures Foundation IRS filing 2024 · Most giving: DC, CA, MD | $200K | $22M | 63 |
| Impetus Foundation IRS filing 2025 · Most giving: TX, NY, CA | $25K | $22M | 129 |
| Iris Foundation IRS filing 2024 · Most giving: NY, FL | $7.5K | $19.7M | 8 |
| Islands Fund C/O John Munn IRS filing 2024 · Most giving: WA, CO, VT | $70K | $16.2M | 81 |
| Iowa West Foundation IRS filing 2024 · Most giving: IA, NE | $25K | $15.9M | 134 |
| Imago Dei Fund C/O Berkshire Partners IRS filing 2024 · Most giving: MA, CA, NY | $79.2K | $15.1M | 126 |
| I Am Mercy Foundation A/K/A I Am the Vine Foundation IRS filing 2024 · Most giving: PA, OH, IN | $100K | $15M | 37 |
| International Institute of Islamic Thought the Fairfax Institute IRS filing 2024 · Most giving: VA, OK, IN | $50K | $12.7M | 37 |
| Intuitive Foundation IRS filing 2024 · Most giving: DE, SCOTLAND, CA | $51.8K | $12.6M | 104 |
| Irving & Dorothy Levy Family Foundation IRS filing 2025 · Most giving: WI, MN | $15K | $12.1M | 43 |
| Ibm International Foundation IRS filing 2024 · Most giving: DE, MA, GA | $100K | $11.7M | 16 |
| Indiana University Health Morgan Inc IRS filing 2024 · Most giving: IN | $2.5K | $11.1M | 5 |
| Infosys Foundation USA IRS filing 2025 · Most giving: NY, WA, FL | $29.5K | $10.2M | 177 |
| The Ira Decamp Foundation Xxxxx2009 IRS filing 2024 · Most giving: NY, NJ, CA | $70K | $9.1M | 121 |
| Institute for Follicular Lymphoma Innovation IRS filing 2024 · Most giving: NY, CA, MO | $371.4K | $9M | 10 |
| Independence Blue Cross Foundation IRS filing 2024 · Most giving: PA, CA, GA | $70K | $8.7M | 70 |
| Independence Foundation IRS filing 2025 · Most giving: PA, NY, NC | $10K | $7.5M | 457 |
| The IV Fund IRS filing 2025 · Most giving: DE, OH, IL | $25K | $7M | 102 |
| Illumina Corporate Foundation IRS filing 2025 · Most giving: CA, MD, DE | $15K | $6.8M | 79 |
| The Ilsababy Foundation IRS filing 2025 · Most giving: NY, CA, CT | $75K | $6.7M | 50 |
| Irving & Eleanor Jaffe Foundation Inc IRS filing 2024 · Most giving: CA, NY, UT | $50K | $6.5M | 10 |
| Idaho Elks Rehab Hospital Inc IRS filing 2024 · Most giving: ID | $25.5K | $6.5M | 11 |
| Isnardi Foundation IRS filing 2025 · Most giving: CA | $49K | $6.4M | 57 |
| Independence Public Media of Philadelphia Inc IRS filing 2024 · Most giving: PA, NY, NJ | $20K | $6.2M | 176 |
| Illinois Children's Healthcare Foundation IRS filing 2024 · Most giving: IL, IA, IN | $125K | $6.1M | 42 |
| The Isdell Family Foundation IRS filing 2025 · Most giving: GA, NY, CO | $60K | $5.9M | 37 |
| Iger Bay Foundation IRS filing 2025 · Most giving: CA, TX, DC | $22.5K | $5.7M | 70 |
| I A O'Shaughnessy Foundation IRS filing 2024 · Most giving: IL, MN, CO | $25K | $5.2M | 110 |
| The Isabel Allende Foundation IRS filing 2025 · Most giving: CA, NY, TN | $25K | $5M | 105 |
| Institution for Savings in Newburyport & Its Vicinity Charitable Foundation Inc IRS filing 2025 · Most giving: MA, VA, GA | $2.5K | $4.7M | 340 |
| Iherb Charitable Foundation IRS filing 2025 · Most giving: WA, CA, NY | $230K | $4.5M | 14 |
| Ignite Cultural Solutions Foundation IRS filing 2024 · Most giving: CA, VA, FL | $75.5K | $4.5M | 28 |
| Isaacson Foundation IRS filing 2025 · Most giving: TN, OK, AZ | $50K | $4.3M | 44 |
| Ishiyama Foundation IRS filing 2024 · Most giving: CA, DC, VA | $10K | $4.2M | 65 |
| Inavale Foundation Inc IRS filing 2024 · Most giving: NY, MN, NC | $7.3K | $4M | 14 |
| Indigo Foundation IRS filing 2024 · Most giving: KY, CA, MA | $250K | $3.9M | 13 |
| Idex Foundation IRS filing 2025 · Most giving: DE, VA, GB | $15.1K | $3.8M | 18 |
| Ina B Bond Ashbourne Charitable Fund Inc IRS filing 2024 · Most giving: KY, FL, TN | $175K | $3.8M | 10 |
| Iqair Foundation IRS filing 2024 · Most giving: CA | $19.6K | $3.7M | 98 |
| Ir Tua Kd&Ml Steadley Charitable IRS filing 2025 · Most giving: MO | $50K | $3.7M | 35 |
| Indira Foundation IRS filing 2024 · Most giving: DELHI, MA, NEW DELHI | $30K | $3.6M | 58 |
| The Ivan Bowen Family Foundation IRS filing 2025 · Most giving: MN, FL, AZ | $100K | $3.5M | 27 |
| Irvine Health Foundation IRS filing 2024 · Most giving: CA | $50K | $3.5M | 13 |
| Independent University Alumni Association at Lowell Inc IRS filing 2024 · Most giving: MA | $150K | $3.5M | 5 |
| International Paper Company Foundation IRS filing 2024 · Most giving: DC, GA, TX | $3.5K | $3.4M | 472 |
| The Isabel Foundation IRS filing 2024 · Most giving: CA, MO, MI | $25K | $3.3M | 82 |
| Interco Charitable Trust IRS filing 2024 · Most giving: MO, FL, DC | $30K | $3.2M | 54 |
| Israel Henry Beren Charitable Foundation Inc IRS filing 2024 · Most giving: NY, KS, NJ | $250K | $3.2M | 9 |
| Institute for Aegean Prehistory C/O Millburn Ridgefield LLC IRS filing 2024 · Most giving: CRETE, PA, OH | $10K | $3M | 35 |
| Ibis Foundation of Arizona co Casey LeSueur Getz CPAs PLLC IRS filing 2025 · Most giving: AZ, NY, IL | $50K | $3M | 47 |
| Iris & Saul Katz Family Foundation Inc IRS filing 2024 · Most giving: NY, FL, NJ | $3K | $2.9M | 47 |
| Isadore & Bertha Gudelsky Family Fnd Inc C/O Arnold & Porter Kaye Scholer LLP IRS filing 2024 · Most giving: MD, NY, FL | $20K | $2.9M | 69 |
| I S Wong Foundation IRS filing 2025 · Most giving: AZ, CA, DC | $20K | $2.8M | 53 |
| Ima Foundation IRS filing 2025 · Most giving: CO, KS, CA | $500 | $2.8M | 1,263 |
| Island Outreach Foundation Inc IRS filing 2024 · Most giving: NY, IL, HI | $10K | $2.7M | 77 |
| Incyte Charitable Giving Foundation IRS filing 2025 · Most giving: DE, PA, NY | $15K | $2.7M | 100 |
| Inmaat Foundation C/O Presti & Naegele IRS filing 2024 · Most giving: NY, CA, DC | $15K | $2.6M | 117 |
| The Imperial Charitable Trust IRS filing 2024 · Most giving: VA, WV, SC | $1.6K | $2.5M | 73 |
| Irving I Stone Foundation IRS filing 2024 · Most giving: OH, NY, JERUSALEM | $10K | $2.5M | 66 |
| Iac Charitable Foundation Inc IRS filing 2025 · Most giving: NY, IA, NC | $10K | $2.4M | 154 |
| Irwin Family Foundation c/o Mr Robert W Lynch IRS filing 2025 · Most giving: IL | $312.5K | $2.3M | 6 |
| Investors Foundation Inc IRS filing 2024 · Most giving: NJ, NY, MA | $1.8K | $2.2M | 375 |
| Isaiah 5812 Foundation Inc IRS filing 2024 · Most giving: CO, CA, TX | $30K | $2.2M | 31 |
| Irfan Kathwari Foundation Inc IRS filing 2024 · Most giving: CT, NY, VA | $10K | $2.2M | 70 |
| Isaiah 61 Foundation IRS filing 2025 · Most giving: VT, NH, AL | $21K | $2.1M | 30 |
| Island Foundation Inc IRS filing 2024 · Most giving: MA, RI, ME | $10K | $2.1M | 169 |
| Ibc Foundation IRS filing 2024 · Most giving: TX | $400K | $2.1M | 5 |
| Ion Bank Foundation Inc IRS filing 2025 · Most giving: CT, NJ, NY | $500 | $2M | 827 |
| Ida S Charlton Charity Fd Ua IRS filing 2025 · Most giving: MA, RI, HI | $100K | $2M | 16 |
| The Imus Ranch Inc IRS filing 2025 · Most giving: TX, GA, NY | $100K | $2M | 17 |
| Insita Group Ltd IRS filing 2024 · Most giving: NY, CA, DC | $200K | $2M | 9 |
| IDC Foundation Inc IRS filing 2024 · Most giving: NY | $100K | $1.9M | 13 |
| Inspirational Giving IRS filing 2025 · Most giving: OR, CA, AZ | $19K | $1.9M | 73 |
| Intrust Bank Charitable Tr IRS filing 2025 · Most giving: KS, OK, MO | $22.5K | $1.9M | 54 |
| The Inglesea Charitable Trust IRS filing 2024 · Most giving: CT, VT, DC | $1K | $1.9M | 70 |
| Ishbia Family Foundation Inc IRS filing 2024 · Most giving: MI, IL, FL | $49.8K | $1.9M | 5 |
| Iris and Junming Le Foundation IRS filing 2025 · Most giving: PA, NY, OH | $31.6K | $1.8M | 11 |
| Indian Trail Charitable Foundation Inc IRS filing 2023 · Most giving: NY, PA, MI | $1.2K | $1.8M | 99 |
| Irish Woods Foundation IRS filing 2025 · Most giving: IL, IN, MD | $5K | $1.8M | 97 |
| Ivan V Koulaieff Foundation IRS filing 2025 · Most giving: AK, PA, TX | $115K | $1.8M | 13 |
| Isaac & Marjorie Gindi Foundation Inc IRS filing 2025 · Most giving: NY, NJ, TEL AVIV | $1.9K | $1.7M | 311 |
| The International Retinal Research Foundation Inc IRS filing 2024 · Most giving: TN, AL, MA | $77.5K | $1.7M | 9 |
| I Waldbaum Family Foundation IRS filing 2025 · Most giving: NY, CO, NJ | $10K | $1.7M | 97 |
| Iacocca Family Foundation IRS filing 2024 · Most giving: OH, MA, CA | $364.8K | $1.7M | 5 |
| Iron Horse Family Foundation Inc IRS filing 2025 · Most giving: CO, FL, MA | $21K | $1.7M | 38 |
| Ifs Family Foundation Inc IRS filing 2025 · Most giving: WI, FL, ME | $20K | $1.6M | 15 |
| Immanuel Charitable Foundation IRS filing 2024 · Most giving: AZ | $50K | $1.6M | 9 |
| The Isak and Rose Weinman Foundation Inc IRS filing 2025 · Most giving: NY, MA, CT | $15K | $1.6M | 77 |
| Irvin F & Alice S Etscorn Charitable Foundation IRS filing 2024 · Most giving: KY, VA | $25K | $1.6M | 47 |
| Inherent Foundation C/O Inherent Group IRS filing 2024 · Most giving: CA, TX, MA | $21.2K | $1.6M | 22 |
| The Isambard Kingdom Brunel Society of NA IRS filing 2025 · Most giving: NY, CA, MA | $25K | $1.6M | 36 |
| Isadore & Jean Bloom Charitable IRS filing 2025 · Most giving: FL, MD | $256.5K | $1.5M | 6 |