funder-graph › Recipients
Who funds San Diego Math Circle
EIN 47-1217505 · Poway, CA · NTEE B99
San Diego Math Circle of Poway, CA (EIN 47-1217505) was named as a grant recipient by 4 funders in 15 grants paid totaling $48,973 in tax years 2020–2025, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$48,973
15 grants paid
Funders
4
distinct grantmakers
Tax years
2020–2025
as reported by funders
Funders
| Funder | State | Match | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| American Online Giving Foundation Inc 81-0739440 | DE | A | 6 | $47,268 | 2025 |
| The Pfizer Foundation Inc 13-6083839 | NY | C | 5 | $1,250 | 2024 |
| Amazonsmile Foundation 46-2626883 | WA | C | 3 | $255 | 2023 |
| Hao Xu & Lin Jiang Foundation Inc 47-4832679 | CA | C | 1 | $200 | 2020 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Grants
The 15 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2025 | American Online Giving Foundation Inc | San Diego Math Circle San Diego, CA | A | $6,604 | paid | GENERAL SUPPORT | 202641969349302754 |
| 2025 | American Online Giving Foundation Inc | San Diego Math Circle San Diego, CA | A | $6,604 | paid | GENERAL SUPPORT | 202533509349301608 |
| 2024 | American Online Giving Foundation Inc | San Diego Math Circle San Diego, CA | A | $9,465 | paid | GENERAL SUPPORT | 202530159349302758 |
| 2024 | The Pfizer Foundation Inc | San Diego Math Circle San Diego, CA | C | $500 | paid | MATCHING GIFTS | 202503119349101850 |
| 2024 | The Pfizer Foundation Inc | San Diego Math Circle San Diego, CA | C | $100 | paid | VOLUNTEER PROGRAM | 202503119349101850 |
| 2023 | American Online Giving Foundation Inc | San Diego Math Circle San Diego, CA | A | $10,041 | paid | GENERAL SUPPORT | 202410469349300741 |
| 2023 | The Pfizer Foundation Inc | San Diego Math Circle San Diego, CA | C | $250 | paid | MATCHING GIFTS | 202412839349100921 |
| 2023 | Amazonsmile Foundation | San Diego Math Circle San Diego, CA | C | $48 | paid | GENERAL SUPPORT | 202540919349100629 |
| 2022 | American Online Giving Foundation Inc | San Diego Math Circle San Diego, CA | A | $8,368 | paid | GENERAL SUPPORT | 202340469349301209 |
| 2022 | The Pfizer Foundation Inc | San Diego Math Circle San Diego, CA | C | $350 | paid | MATCHING GIFTS | 202313079349100411 |
| 2022 | Amazonsmile Foundation | San Diego Math Circle San Diego, CA | C | $142 | paid | GENERAL SUPPORT | 202313119349100141 |
| 2022 | The Pfizer Foundation Inc | San Diego Math Circle San Diego, CA | C | $50 | paid | VOLUNTEER PROGRAM | 202313079349100411 |
| 2021 | American Online Giving Foundation Inc | San Diego Math Circle San Diego, CA | A | $6,186 | paid | GENERAL SUPPORT | 202240469349301419 |
| 2020 | Hao Xu & Lin Jiang Foundation Inc | San Diego Math Circle San Diego, CA | C | $200 | paid | Charitable | 202121319349103072 |
| 2020 | Amazonsmile Foundation | San Diego Math Circle San Diego, CA | C | $65 | paid | GENERAL SUPPORT | 202113199349100901 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.