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Wisconsin · Nonprofit

Wisconsin Museum of Nature and Culture

Wisconsin Museum of Nature and Culture (Wisconsin) receives grants from 1 organization whose IRS filings report $129,605,045 to it, the largest being Historic Haymarket Milwaukee Inc ($129,605,045). 1 of them have funded it in more than one year.

Revenue FY2025
$103M
Funders on record
1
Grants received
$130M
Net assets
$134M
1/1 repeat funders
01What it does

What Wisconsin Museum of Nature and Culture does

Mission

WMNC will continue constructing the new Milwaukee Public Museum facility to completion and will then continue as the owner and operator of the new museum.

As stated on its FY2025 Form 990.

Program

  1. "in 2025, responsibility for construction management and oversight for the new milwaukee public museum project was assigned to wmnc. As of august 31, 2025, the project was estimated to be 45% complete.

    $341,234 spent
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $341,234.

02The organization over time

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.

Chief executive

Ellen Censky

CEO

Board chair

Patti Mckeithan

Chairman

As listed on its FY2025 Form 990.

03Who funds it

Who funds it, year by year

Grant support over time, funder by funder — shade shows the grant size each year.

Funder
'24*
'25*
total
funders
1
1

From the IRS filings of Wisconsin Museum of Nature and Culture’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

100% of Wisconsin Museum of Nature and Culture's grant income comes from Wisconsin funders.

WI

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.

04Its place in the field

Against its field

Wisconsin Museum of Nature and Culture receives grants from 1 organization whose IRS filings report $130M to it.

Operating margin100% · outside the comparable range
Months of reserve548.7mo · outside the comparable range

this organization peer median middle 50% of peers· 42 arts & culture nonprofits over $100M, FY2025

Organizations like Wisconsin Museum of Nature and Culture

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 Wisconsin

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

84% of spending goes to programs.

Program 84%Management 9%Fundraising 6%

Governance

9
board members
89%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990✓Audited financials

Public support

0%

Share of support from the public (Schedule A) — the basis for its public-charity status.

Footprint & structure

Files a return copy in 1 state

WI

Part of a family of 1 related entity

  • Hhm Parking Unit LLC · disregarded

Screen this organization

A dated, signed PDF of the compliance screen for Wisconsin Museum of Nature and Culture: 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.

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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 Wisconsin Museum of Nature and Culture?
Wisconsin Museum of Nature and Culture (Wisconsin) receives grants from 1 organization whose IRS filings report $129,605,045 to it, the largest being Historic Haymarket Milwaukee Inc ($129,605,045). 1 of them have funded it in more than one year.
How many funders does Wisconsin Museum of Nature and Culture have?
IRS filings report 1 organization giving $129,605,045 in grants to Wisconsin Museum of Nature and Culture, 1 of which have funded it in more than one year.
Who is the largest funder of Wisconsin Museum of Nature and Culture?
Historic Haymarket Milwaukee Inc is the largest funder on record, with $129,605,045 in grants. The full list of funders is on this page.
How can an organization like Wisconsin Museum of Nature and Culture find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Wisconsin. 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 2025–2025), 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