California · Nonprofit
OPERETTA FOUNDATION
OPERETTA FOUNDATION (California) receives grants from 1 organization whose IRS filings report $12,000 to it, the largest being The Victor Herbert Foundation ($12,000). 1 of them have funded it in more than one year.
- Revenue FY2025
- $38k
- Funders on record
- 1
- Grants received
- $12k
- Net assets
- $265k
What Operetta Foundation does
Program
preservation and promotion of operetta heritage. maintains a continually expanding library containing america's largest collection of operetta related material - books, scores, sheet music, programs, posters, and other ephemera. provides research and performance materials to opera and operetta companies, authors, newspapers, radio, performers, and publishers. produces cds and dvds to enable continued distribution of operetta music and produces live events to showcase rarely performed and all but forgotten music from operettas and early musical comedies. sponsors a los angeles area group, friends of operetta, whose mission is to entertain, educate, and provide opportunities to share operetta and musical theater.
$0 spent
The program described on its FY2025 Form 990-PF.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $236k to $265k (+12%).
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of OPERETTA FOUNDATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
OPERETTA FOUNDATION draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
OPERETTA FOUNDATION has grown faster than three-quarters of the 4,748 philanthropy nonprofits its size.
this organization peer median middle 50% of peers· 4,748 philanthropy nonprofits under $100k, FY2025
Organizations like OPERETTA FOUNDATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Screen this organization
A dated, signed PDF of the compliance screen for OPERETTA FOUNDATION: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds OPERETTA FOUNDATION?
- OPERETTA FOUNDATION (California) receives grants from 1 organization whose IRS filings report $12,000 to it, the largest being The Victor Herbert Foundation ($12,000). 1 of them have funded it in more than one year.
- How many funders does OPERETTA FOUNDATION have?
- IRS filings report 1 organization giving $12,000 in grants to OPERETTA FOUNDATION, 1 of which have funded it in more than one year.
- Who is the largest funder of OPERETTA FOUNDATION?
- The Victor Herbert Foundation is the largest funder on record, with $12,000 in grants. The full list of funders is on this page.
- How can an organization like OPERETTA FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 1 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing