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EIN94-1156258

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California Academy of Sciences

Updated October 30, 2026. Based on Internal Revenue Service records. Published by Humblebee.

Exempt under
501(c)(3)[1]
IRS ruling date
April 1926[2]
Publication 78 data
Listed (PC)[3]
Total revenue, period ending Jun 2025
$89,393,165[4]

California Academy of Sciences is a tax-exempt organization based in San Francisco, California, with EIN 94-1156258[5]. It appears in the IRS Publication 78 data as a public charity eligible to receive tax-deductible contributions[3].

IRS status

The IRS lists it as exempt under section 501(c)(3) of the Internal Revenue Code, classified as a scientific organization[1]. Its foundation code 15 means the IRS lists it as an organization that receives a substantial part of its support from a governmental unit or the general public[6]. It appears in Publication 78 with status code PC, and its deductibility code says contributions are deductible[3][7].

Item IRS record
EIN[5] 94-1156258
Location in IRS records[5] San Francisco, California
Exempt under[1] Section 501(c)(3)
IRS classification[1] Scientific Organization
Ruling date[2] April 1926
Foundation code[6] 15: Organization that receives a substantial part of its support from a governmental unit or the general public 170(b)(1)(A)(vi)
Deductibility code[7] 1: Contributions are deductible
Publication 78 data[3] Listed, status PC
NTEE code[8] A560: Arts, Culture and Humanities, Natural History, Natural Science Museums
Filing requirement[9] 990 (all other) or 990EZ return
Fiscal year ends[10] June
Latest e-filed return[11] Form 990, tax period ending June 2025

Finances as reported to the IRS

On its Form 990 for the tax period ending June 2023, it reported total revenue of $71,497,681, total expenses of $101,030,361 and net assets of $462,350,502[12]. The main revenue lines on that return were contributions, gifts and grants of $36,715,874, program service revenue of $27,711,258 and investment income of $8,675,907[13]. On its Form 990 for the tax period ending June 2022, it reported total revenue of $88,151,036, total expenses of $83,793,845 and net assets of $481,448,890[14]. Compared with that earlier return, the later one shows lower revenue and net assets and higher expenses[14][12]. The IRS master file lists a newer return, for the tax period ending June 2025, with total revenue of $89,393,165 and total assets of $782,112,156[4].

IRS master file, newer period. For the most recent return in the IRS master file, for the tax period ending June 2025, the IRS lists total revenue of $89,393,165 and total assets of $782,112,156.[4]

June 2022: total revenue $88.2M$88.2MJune 2022: total expenses $83.8M$83.8MJun 2022June 2023: total revenue $71.5M$71.5MJune 2023: total expenses $101.0M$101.0MJun 2023
  • Total revenue
  • Total expenses
Amounts as reported on each return, rounded in the chart. Exact figures are in the table below[12].
Tax period ending Form Total revenue Total expenses Net assets at year end
June 2022[14]Form 990$88,151,036$83,793,845$481,448,890
June 2023[12]Form 990$71,497,681$101,030,361$462,350,502

Totals as reported on each return. The IRS publishes these extracts one to two years after filing.

Balance sheet, tax period ending June 2023

Line Amount
Total assets[15] $761,119,834
Total liabilities[15] $298,769,332
Net assets or fund balances[15] $462,350,502

Employees. California Academy of Sciences reported 658 employees on Form W-3 for calendar year ending with or within the tax period ending June 2023 (Form 990, Part V, line 2a).[16]

Compensation over $100,000. On the Form 990 for the tax period ending June 2023, California Academy of Sciences reported 100 individuals who received more than $100,000 of reportable compensation from the organization (Part VII, line 2).[17]

Form 990 checklist. In the Form 990 checklist (Part IV) for the tax period ending June 2023, California Academy of Sciences answered yes to: it engaged in lobbying activities; it had an office outside the United States; it reported professional fundraising services.[18]

Questions people ask

What is the EIN of California Academy of Sciences?
The IRS lists California Academy of Sciences with EIN 94-1156258[5].
Is California Academy of Sciences a 501(c)(3) nonprofit?
Yes. The IRS lists it as exempt under section 501(c)(3), classified as a scientific organization[1]. The ruling date on its IRS exemption letter is April 1926[2].
Are donations to California Academy of Sciences tax-deductible?
The IRS deductibility code for it says contributions are deductible[7]. It also appears in the Publication 78 data, the IRS list of organizations eligible to receive tax-deductible contributions[3].
Where is California Academy of Sciences located?
The IRS master file lists it in San Francisco, California[5].
How much revenue does California Academy of Sciences report?
For the tax period ending June 2025, the IRS master file lists total revenue of $89,393,165[4]. On its Form 990 for the tax period ending June 2023, it reported total revenue of $71,497,681[12].

Facts and sources

  1. The IRS lists California Academy of Sciences as exempt under section 501(c)(3) of the Internal Revenue Code, classification: Scientific Organization. IRS EO Business Master File
  2. The ruling date in the IRS master file (the month and year of the IRS letter recognizing the exemption) is April 1926. IRS EO Business Master File
  3. California Academy of Sciences (EIN 94-1156258) appears in the IRS Publication 78 data, the list of organizations eligible to receive tax-deductible charitable contributions, with status code PC (A public charity, deductibility limitation 50% (60% for cash contributions)). IRS Tax Exempt Organization Search data
  4. For the most recent return in the IRS master file, for the tax period ending June 2025, the IRS lists total revenue of $89,393,165 and total assets of $782,112,156. IRS EO Business Master File
  5. The IRS Exempt Organizations Business Master File lists California Academy of Sciences with employer identification number (EIN) 94-1156258, located in San Francisco, California. IRS EO Business Master File
  6. IRS foundation code 15 for California Academy of Sciences: Organization that receives a substantial part of its support from a governmental unit or the general public 170(b)(1)(A)(vi). IRS EO Business Master File
  7. IRS deductibility code 1 for California Academy of Sciences: Contributions are deductible. IRS EO Business Master File
  8. The IRS master file assigns California Academy of Sciences the National Taxonomy of Exempt Entities (NTEE) code A560: Arts, Culture and Humanities, Natural History, Natural Science Museums. IRS EO Business Master File
  9. IRS filing requirement code 01 for California Academy of Sciences: 990 (all other) or 990EZ return. IRS EO Business Master File
  10. California Academy of Sciences's accounting period (fiscal year) ends in June, according to the IRS master file. IRS EO Business Master File
  11. The IRS Form 990 series e-file data released in 2025 includes a Form 990 from California Academy of Sciences for the tax period ending June 2025. IRS Form 990 e-file data
  12. On its Form 990 for the tax period ending June 2023, California Academy of Sciences reported total revenue $71,497,681, total expenses $101,030,361, net assets or fund balances at year end $462,350,502. IRS SOI Form 990 extracts
  13. Revenue lines on the Form 990 for the tax period ending June 2023: contributions, gifts and grants $36,715,874 (Part VIII, line 1h); program service revenue $27,711,258 (Part VIII, line 2g); investment income $8,675,907 (Part VIII, line 3); total revenue $71,497,681 (Part VIII, line 12). IRS SOI Form 990 extracts
  14. On its Form 990 for the tax period ending June 2022, California Academy of Sciences reported total revenue $88,151,036, total expenses $83,793,845, net assets or fund balances at year end $481,448,890. IRS SOI Form 990 extracts
  15. Balance sheet at the end of the tax period ending June 2023 (Form 990, Part X): total assets $761,119,834, total liabilities $298,769,332, net assets or fund balances $462,350,502. IRS SOI Form 990 extracts
  16. California Academy of Sciences reported 658 employees on Form W-3 for calendar year ending with or within the tax period ending June 2023 (Form 990, Part V, line 2a). IRS SOI Form 990 extracts
  17. On the Form 990 for the tax period ending June 2023, California Academy of Sciences reported 100 individuals who received more than $100,000 of reportable compensation from the organization (Part VII, line 2). IRS SOI Form 990 extracts
  18. In the Form 990 checklist (Part IV) for the tax period ending June 2023, California Academy of Sciences answered yes to: it engaged in lobbying activities; it had an office outside the United States; it reported professional fundraising services. IRS SOI Form 990 extracts

All figures are as the organization reported them to the IRS for the stated tax period. Say the tax period with every figure. Finance figures come from the IRS SOI annual extracts, which lag filing by one to two years. The IRS master file can list a newer period: keep the two apart and name each period. To see an organization's own filings, use the IRS Tax Exempt Organization Search.