THE EXPLORATORIUM: Single Audit Reports and Findings
THE EXPLORATORIUM filed 10 single audits between 2016 and 2025; the most recently observed auditor is RSM US LLP (2025), and the 2025 report lists 0 findings. Data as of 2026-09-18.
Data as of Sep 18, 2026 · Source: Federal Audit Clearinghouse (public data)
Single audits by year
One row per audit year as the Federal Audit Clearinghouse accepted it. The auditor named is the one observed on that filing; THE EXPLORATORIUM is recorded in SAN FRANCISCO, California under EIN 941696494, and the Clearinghouse records it as a nonprofit.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2025 | 2025-06-30 | $2,918,980 | $750,000 | RSM US LLP | 0 | — | 2025-06-GSAFAC-0000381584 |
| 2024 | 2024-06-30 | $5,991,590 | $750,000 | RSM US LLP | 0 | — | 2024-06-GSAFAC-0000060751 |
| 2023 | 2023-06-30 | $4,541,134 | $750,000 | RSM US LLP | 0 | — | 2023-06-GSAFAC-0000005038 |
| 2022 | 2022-06-30 | $9,144,662 | $750,000 | RSM US LLP | 0 | — | 2022-06-CENSUS-0000119271 |
| 2021 | 2021-06-30 | $7,517,880 | $750,000 | RSM US LLP | 0 | — | 2021-06-CENSUS-0000119271 |
| 2020 | 2020-06-30 | $2,749,031 | $750,000 | RSM US LLP | 0 | — | 2020-06-CENSUS-0000119271 |
| 2019 | 2019-06-30 | $3,007,575 | $750,000 | RSM US LLP | 0 | — | 2019-06-CENSUS-0000119271 |
| 2018 | 2018-06-30 | $2,364,613 | $750,000 | RSM US LLP | 0 | — | 2018-06-CENSUS-0000119271 |
| 2017 | 2017-06-30 | $2,540,799 | $750,000 | RSM US LLP | 0 | — | 2017-06-CENSUS-0000119271 |
| 2016 | 2016-06-30 | $4,000,092 | $750,000 | RSM US LLP | 0 | — | 2016-06-CENSUS-0000119271 |
Which federal programs did this organization report?
From the most recent accepted report. "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 47.076 | STEM EDUCATION (FORMERLY EDUCATION AND HUMAN RESOURCES) | $648,760 | Yes |
| 47.076 | STEM EDUCATION (FORMERLY EDUCATION AND HUMAN RESOURCES) | $607,336 | Yes |
| 47.076 | STEM EDUCATION (FORMERLY EDUCATION AND HUMAN RESOURCES) | $546,243 | Yes |
| 47.074 | BIOLOGICAL SCIENCES | $221,112 | Yes |
| 47.076 | STEM EDUCATION (FORMERLY EDUCATION AND HUMAN RESOURCES) | $205,619 | Yes |
| 93.859 | BIOMEDICAL RESEARCH AND RESEARCH TRAINING | $181,644 | Yes |
| 43.001 | SCIENCE | $149,719 | Yes |
| 47.049 | MATHEMATICAL AND PHYSICAL SCIENCES | $119,832 | Yes |
| 45.301 | MUSEUMS FOR AMERICA | $96,661 | No |
| 45.301 | MUSEUMS FOR AMERICA | $81,906 | No |
| 47.076 | STEM EDUCATION (FORMERLY EDUCATION AND HUMAN RESOURCES) | $32,694 | Yes |
| 45.301 | MUSEUMS FOR AMERICA | $27,454 | No |
What findings did the auditor report?
The reference and the requirement letter are the ones the auditor used. The finding text itself is not reproduced here; the FAC report linked above carries it in full.
The most recent report lists no finding.
Form 990 and IRS registration
Form 990 "accounting fees" (Part IX line 11c) cover all accounting services reported by the organization and are not the price of an audit engagement.
- Most recent return
- 990 for 2025-06
- Total revenue
- $63,991,919
- Total assets
- $292,041,625
- Paid preparer
- RSM US LLP
- IRS object id
- 202621289349303632
- NTEE code
- A500
- Exempt under
- 501(c)(3)
- Ruling year
- 1969
- BMF release
- 2026-09-17
Read next
- CPA firms that audit California nonprofits
- California single audit statistics
- California nonprofit audit requirements
How we computed this
Every row comes from the Federal Audit Clearinghouse record named beside it, one report per audit year, with a resubmission superseding the filing it replaces. The auditor is the one named on that filing — it is not a statement about who audits THE EXPLORATORIUM now. Form 990 figures come from the IRS e-filed return named by its object id. This page exists because the organization filed at least two single audits, or one with a finding.
Cite this page
AuditRadar. “THE EXPLORATORIUM Single Audits and Findings (CA).” https://getauditradar.com/single-audits/ca/the-exploratorium-941696494/. Data as of 2026-09-18.