Callisto
Funding Overview
From IRS Form 990 filings · 2018–2025
Total received
$1.4M
Foundation funders
21
Grants recorded
31
Years covered
2018–2025
Who funds Callisto?
Callisto is funded by 21 grantmakers, led by Laura and John Arnold Foundation ($300K), Novo Foundation ($300K), The Battery Foundation ($231K). In total, IRS Form 990 filings record $1.4M in grants to Callisto between 2018–2025.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| Laura and John Arnold Foundation | $300,000 | 2 | 2024 |
| Novo Foundation | $300,000 | 2 | 2020–2021 |
| The Battery Foundation | $231,222 | 1 | 2023 |
| The Skoll Foundation | $100,000 | 2 | 2020–2021 |
| Skoll Fund | $100,000 | 2 | 2020–2021 |
| Anchor Point Foundation | $100,000 | 2 | 2019–2020 |
| The Eagle and the Hawk Foundation | $87,260 | 4 | 2020–2024 |
| Founders Pledge Inc | $50,000 | 1 | 2018 |
| Gordon Family Foundation | $25,000 | 1 | 2023 |
| Tides Foundation | $25,000 | 1 | 2022 |
| King-Porter Foundation | $20,000 | 3 | 2024–2025 |
| Anondo Fund Inc | $19,095 | 1 | 2024 |
| HEE Family Foundation Inc | $10,000 | 1 | 2025 |
| Vanguard Charitable Endowment Program | $10,000 | 1 | 2023 |
| Joe and Kim Boswell Foundation Inc | $5,000 | 1 | 2024 |
| New Place Fund Inc | $4,000 | 1 | 2024 |
| Mussafer Family Foundation | $1,000 | 1 | 2023 |
| McNabb Foundation | $1,000 | 1 | 2023 |
| The James Irvine Foundation | $880 | 1 | 2024 |
| Esjay Foundation Inc | $500 | 1 | 2019 |
| The Pfizer Foundation Inc | $50 | 1 | 2022 |
Funding over time
Grant dollars and counts received per year
From 2018 to 2025, annual grant giving ranged from $16K (2025) to $370K (2024). In 2025 it made 2 grants totaling $16K.
What grants has Callisto received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | HEE Family Foundation Inc | GENERAL DONATION | $10,000 |
| 2025 | King-Porter Foundation | General & Unrestricted | $6,000 |
| 2024 | Laura and John Arnold Foundation | TO ENABLE THE GRANTEE TO BUILD A DATA INFRASTRUCTURE THAT WILL ENABLE FUTURE RESEARCH ON THE EFFECTS OF THE GRANTEE'S PLATFORM ON REPORTING AND CRIMINAL INVESTIGATIONS OF SEXUAL ASSAULT. | $200,000 |
| 2024 | Laura and John Arnold Foundation | TO DEVELOP GRANTEE'S LEGAL OPTIONS PROGRAM, ESTABLISHING A NETWORK OF LOCAL REFERRALS FOR LEGAL AND MENTAL HEALTH RESOURCES FOR SURVIVORS, AND DESIGNING AND IMPLEMENTING A DATA COLLECTION SYSTEM, WITH THE OVERALL GOAL OF DEVELOPING A COMPREHENSIVE DATA COLLECTION SYSTEM AND PROVIDING RESEARCHERS WITH VALUABLE DATASETS TO EVALUATE GRANTEE'S EFFECTIVENESS IN ADDRESSING SEXUAL VIOLENCE. | $100,000 |
| 2024 | The Eagle and the Hawk Foundation | TO USE TECHNOLOGLY TO EMPOWER SURVIVORS OF SEXUAL VIOLENCE | $26,750 |
| 2024 | Anondo Fund Inc | General Support | $19,095 |
| 2024 | King-Porter Foundation | General & Unrestricted | $9,000 |
| 2024 | Joe and Kim Boswell Foundation Inc | FOR THE EXEMPT PURPOSES OF THIS ORGANIZATION. | $5,000 |
| 2024 | King-Porter Foundation | To Save Callisto fund | $5,000 |
| 2024 | New Place Fund Inc | Operations | $4,000 |
| 2024 | The James Irvine Foundation | For support of California activities | $880 |
| 2023 | The Battery Foundation | GENERAL SUPPORT | $231,222 |
| 2023 | Gordon Family Foundation | UNRESTRICTED | $25,000 |
| 2023 | Vanguard Charitable Endowment Program | FOR RECIPIENT'S EXEMPT PURPOSE | $10,000 |
| 2023 | The Eagle and the Hawk Foundation | TO USE TECHNOLOGLY TO EMPOWER SURVIVORS OF SEXUAL VIOLENCE | $9,630 |
| 2023 | Mussafer Family Foundation | OPERATIONS | $1,000 |
| 2023 | McNabb Foundation | General & Unrestricted | $1,000 |
| 2022 | Tides Foundation | HEALTHY INDIVIDUALS AND COMMUNITIES | $25,000 |
| 2022 | The Pfizer Foundation Inc | MATCHING GIFTS | $50 |
| 2021 | Novo Foundation | GENERAL SUPPORT | $150,000 |
| 2021 | The Skoll Foundation | GENERAL OPERATING SUPPORT | $50,000 |
| 2021 | The Eagle and the Hawk Foundation | TO ASSIST IN THE DEVELOPMENT OF TECHNOLOGY TO COMBAT SEXUAL HARASSMENT. | $25,000 |
| 2021 | Skoll Fund | GENERAL OPERATING SUPPORT | $25,000 |
| 2020 | Novo Foundation | GENERAL SUPPORT | $150,000 |
| 2020 | Skoll Fund | GENERAL OPERATING SUPPORT | $75,000 |
| 2020 | The Skoll Foundation | GENERAL OPERATING SUPPORT | $50,000 |
| 2020 | Anchor Point Foundation | GENERAL | $50,000 |
| 2020 | The Eagle and the Hawk Foundation | TO ASSIST IN THE DEVELOPMENT OF TECHNOLOGY TO COMBAT SEXUAL HARASSMENT. | $25,880 |
| 2019 | Anchor Point Foundation | GENERAL | $50,000 |
| 2019 | Esjay Foundation Inc | PUBLIC CHARITY SUPPORT | $500 |
Showing 30 most recent of 31 recorded grants.
Frequently Asked Questions
Who funds Callisto?
Callisto is funded by 21 grantmakers, led by Laura and John Arnold Foundation ($300K), Novo Foundation ($300K), The Battery Foundation ($231K). In total, IRS Form 990 filings record $1.4M in grants to Callisto between 2018–2025.
Who is Callisto's largest funder?
Laura and John Arnold Foundation is the largest recorded funder of Callisto, with $300K across 2 grants (2024).
How much grant funding has Callisto received?
IRS 990 filings record $1.4M in grants to Callisto across 31 grants from 21 funders between 2018–2025. Filings are published on a delay, so recent grants may not appear yet.
Looking for funders like Callisto's?
Grantable's AI matches your organization against 200,000+ grantmakers — including every funder on this page — using their real giving history.
You, clicking into all 21 funders
~2.5 hrs
at ~7 min per funder profile
Your agents, the same 21
~1 min
every profile evaluated and scored, with reasoning
Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
Looking for funders like Callisto's?