STRATEGY STUDIO / PUBLIC DATA EXPLORER

MALIBU ADAMSON HOUSE FOUNDATION

Cite this

Plain text MALIBU ADAMSON HOUSE FOUNDATION. Strategy Studio, nonprofit organization profile, tax years 2020–2024. https://strategystudio.org/org/953713087. Retrieved 2026-10-20.

APA Strategy Studio. (n.d.). MALIBU ADAMSON HOUSE FOUNDATION [Nonprofit organization profile; tax years 2020–2024]. Retrieved October 20, 2026, from https://strategystudio.org/org/953713087

MLA “MALIBU ADAMSON HOUSE FOUNDATION.” Strategy Studio, tax years 2020–2024, https://strategystudio.org/org/953713087. Accessed 20 Oct. 2026.

Retrieved 2026-10-20; covers tax years 2020–2024. Data: Strategy Studio, CC BY 4.0.

2024 · Form 990 · revenue $465K · expenses $57K · assets $1.5M

Also known as
MALIBU LAGOON MUSEUM
EIN
95-3713087
Address
PO BOX 291, MALIBU, CA 90265-0291
Website
ADAMSONHOUSE.ORG
NTEE code
A540
Subsection
501(c)(3)
Ruling year
1982
Cross-check
ProPublica Nonprofit Explorer

Mission

SUPPORT THE EDUCATIONAL AND INTERPRETIVE ACTIVITIES FOR THE MALIBU MUSEUM AND TO RAISE FUNDS FOR THE RESTORATION, REPAIR AND PRESERVATION OF THIS HISTORICAL SITE.

Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).

People paid by the organization

None of the 13 people listed on these returns reported compensation from the organization. They are listed below.

Officers and directors, no compensation reported

13 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.

NameLatest titleYearsHrs/wk (latest)CompensationOrganizations
Jules Hershfeld TREASURER2020-2024 4 $0 reported 1
Nidra Winger VICE PRESIDENT2020-2024 1 $0 reported 1
Jefferson Wagner DIRECTOR2020-2024 1 $0 reported 1
Martha Juede ARCHIVIST2020-2024 1 $0 reported 1
Carol Jackson SECRETARY2020-2024 1 $0 reported 1
Robby Mazza DIRECTOR-CENTER MANAGER2021-2024 8 $0 reported 1
John Mazza PRESIDENT2020-2024 2 $0 reported 1
Christine Conway DIRECTOR2020-2024 1 $0 reported 1
Craig Sap (former) DIRECTOR2022 1 $0 reported 1
Ann Doneen (former) DIRECTOR-PUBLICIST2020-2021 1 $0 reported 1
Ted Vaill (former) DIRECTOR2021 1 $0 reported 1
Robbie Mazza (former) BOARD MEMBER2020 2 $0 reported 1
Ted Vaile (former) BOARD MEMBBER2020 1 $0 reported 1

People by year

2024 · 8 people listed · none paid · 0 employees · 8 volunteers
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JULES HERSHFELD TREASURER4 $0$0$0 $01
NIDRA WINGER VICE PRESIDENT1 $0$0$0 $01
JEFFERSON WAGNER DIRECTOR1 $0$0$0 $01
MARTHA JUEDE ARCHIVIST1 $0$0$0 $01
CAROL JACKSON SECRETARY1 $0$0$0 $01
ROBBY MAZZA DIRECTOR-CENTER MANAGER8 $0$0$0 $01
JOHN MAZZA PRESIDENT2 $0$0$0 $01
CHRISTINE CONWAY DIRECTOR1 $0$0$0 $01
2023 · 8 people listed · none paid · 0 employees · 10 volunteers
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JULES HERSHFELD TREASURER4 $0$0$0 $01
NIDRA WINGER VICE PRESIDENT1 $0$0$0 $01
JEFFERSON WAGNER DIRECTOR1 $0$0$0 $01
MARTHA JUEDE ARCHIVIST1 $0$0$0 $01
CAROL JACKSON SECRETARY1 $0$0$0 $01
ROBBY MAZZA DIRECTOR-CENTER MANAGER8 $0$0$0 $01
JOHN MAZZA PRESIDENT2 $0$0$0 $01
CHRISTINE CONWAY DIRECTOR1 $0$0$0 $01
2022 · 9 people listed · none paid · 0 employees · 9 volunteers
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JULES HERSHFELD TREASURER4 $0$0$0 $01
NIDRA WINGER PRESIDENT2 $0$0$0 $01
JEFFERSON WAGNER VICE PRESIDENT1 $0$0$0 $01
MARTHA JUEDE ARCHIVIST1 $0$0$0 $01
CAROL JACKSON SECRETARY1 $0$0$0 $01
ROBBY MAZZA DIRECTOR-CENTER MANAGER8 $0$0$0 $01
JOHN MAZZA DIRECTOR1 $0$0$0 $01
CHRISTINE CONWAY DIRECTOR1 $0$0$0 $01
CRAIG SAP DIRECTOR1 $0$0$0 $01
2021 · 10 people listed · none paid · 0 employees · 16 volunteers
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JULES HERSHFELD TREASURER4 $0$0$0 $01
NIDRA WINGER PRESIDENT2 $0$0$0 $01
JEFFERSON WAGNER VICE PRESIDENT1 $0$0$0 $01
MARTHA JUEDE ARCHIVIST1 $0$0$0 $01
CAROL JACKSON SECRETARY1 $0$0$0 $01
ROBBY MAZZA DIRECTOR-CENTER MANAGER8 $0$0$0 $01
JOHN MAZZA DIRECTOR1 $0$0$0 $01
ANN DONEEN DIRECTOR-PUBLICIST1 $0$0$0 $01
CHRISTINE CONWAY DIRECTOR1 $0$0$0 $01
TED VAILL DIRECTOR1 $0$0$0 $01
2020 · 10 people listed · none paid · 0 employees · 35 volunteers
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JULES HERSHFELD FOUNDATION PRESIDENT4 $0$0$0 $01
JEFFERSON WAGNER FOUNATION VICE-PRESIDENT1 $0$0$0 $01
NIDRA WINGER FOUNDATON TRESURER4 $0$0$0 $01
MARTHA JUEDE ARCHIVIST4 $0$0$0 $01
CAROL JACKSON FOUNDATION SECRETARY1 $0$0$0 $01
ROBBIE MAZZA BOARD MEMBER2 $0$0$0 $01
JOHN MAZZA BOARD EMBER1 $0$0$0 $01
ANN DONEEN BOARD PUBLICIST1 $0$0$0 $01
CHRISTINE CONWAY BOARD MEMBER1 $0$0$0 $01
TED VAILE BOARD MEMBBER1 $0$0$0 $01

Highest-paid independent contractors

No independent contractors reported.

Who gave

Contributor names are not public for this form type.

Public charities filing Form 990 or 990-EZ report large donors on Schedule B, but the IRS withholds their names and addresses from public copies. Private foundations (990-PF) are different: their contributors are public.

Finances

Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.

RevenueExpensesAssetsNet assetsContributionsProgram revenueOfficer payEmployeesVolunteers
2024 · Form 990 period ending 2024-12-31 · view filing · original 990 ↗
$464,893$57,459 $1,479,690$1,479,690 $372,407$23,558 $008
2023 · Form 990 period ending 2023-12-31 · view filing · original 990 ↗
$101,695$23,499 $1,019,209$1,019,209 $16,355$22,649 $0010
2022 · Form 990 period ending 2022-12-31 · view filing · original 990 ↗
$145,903$19,895 $957,338$957,338 $35,731$24,748 $009
2021 · Form 990 period ending 2021-12-31 · view filing · original 990 ↗
$107,373$95,139 $1,042,266$1,042,266 $17,724$6,495 $0016
2020 · Form 990 period ending 2020-12-31 · view filing · original 990 ↗
$94,992$23,178 $1,081,780$1,081,780 $4,295$6,718 $0035

Funders of this organization

2 grantors reported grants to this organization, $9,000 in all, tax years 2014 to 2021. Exact: the grantor wrote this organization's EIN. Fuzzy: the grantor wrote only a name (foundations' 990-PF has no EIN field), matched to the same or a near-identical name in the same state; the name as filed is shown. From the latest return for each grantor and year, so amended returns aren't counted twice. CSV

GrantorTypeMatchYears givenGrantsTotalLatest yearLatest year's amountGrants
THE DOVANA FOUNDATION INC Private foundation Fuzzy filed as “MALIBU ADAMSON HOUSE FOUNDATION” 2017, 2019, 2021 3$8,000 2021$3,000
show
THE K A ZANKEL FOUNDATION Private foundation Fuzzy filed as “MALIBU ADAMSON HOUSE FOUNDATION” 2014 1$1,000 2014$1,000
show

Similar organizations

Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)

OrganizationStateNTEELatest revenueLatest expensesTop-paid titleTop payWhy similar
INTERNATIONAL PRINTING MUSEUM FOUNDATIONCAA54 $727,035$660,599 TRUSTEE/CHAIR$0 Same NTEE code A54, revenue within 2x, same state, similar mission
OLD MILL FOUNDATIONCAA54 $301,525$160,102 EXECUTIVE DIR.$60,000 Same NTEE code A54, revenue within 2x, same state
CALIFORNIA WINE EDUCATION FOUNDATIONCAA54 $279,872$313,802 Chairman$0 Same NTEE code A54, revenue within 2x, same state
THE HOLLYWOOD MUSEUMCAA54 $454,270$420,681 PRESIDENT$0 Same NTEE code A54, revenue within 2x, same state
PORTERVILLE HISTORICAL MUSEUMCAA54 $355,299$145,167 Director$0 Same NTEE code A54, revenue within 2x, same state, similar mission
SHARPSTEEN MUSEUM ASSOCIATIONCAA54 $298,150$55,386 MEDIA CHAIR$0 Same NTEE code A54, revenue within 2x, same state
CULTURAL HERITAGE FOUNDATION OF SOUTHERN CALIFORNIA INCCAA54 $554,702$452,189 DIRECTOR$0 Same NTEE code A54, revenue within 2x, same state
CHICO HISTORY MUSEUM INCCAA54 $786,768$66,863 President$0 Same NTEE code A54, revenue within 2x, same state
HERITAGE MUSEUM OF ORANGE COUNTYCAA54 $579,136$638,922 Executive Director$91,875 Same NTEE code A54, revenue within 2x, same state
MUSEUM OF THE SAN RAMON VALLEYCAA54 $331,491$308,926 Executive Dir$54,050 Same NTEE code A54, revenue within 2x, same state
PACIFIC COAST AIR MUSEUMCAA54 $797,534$243,328 Director$0 Same NTEE code A54, revenue within 2x, same state
VETERANS MEMORIAL MUSEUM INCCAA54 $250,696$124,804 Pres/Director$30,000 Same NTEE code A54, revenue within 2x, same state
LOS ANGELES FIRE DEPARTMENT HISTORICAL SOCIETYCAA54 $261,494$199,329 DIRECTOR$1,600 Same NTEE code A54, revenue within 2x, same state
FRIENDS OF BANNING PARK CORPORATIONCAA54 $499,226$431,621 SECRETARY$0 Same NTEE code A54, revenue within 2x, same state
POSTON COMMUNITY ALLIANCE INCCAA54 $541,125$359,368 Shigekawa$0 Same NTEE code A54, revenue within 2x, same state
CHICO AIR MUSEUMCAA54 $258,979$94,568 Board Member$0 Same NTEE code A54, revenue within 2x, same state
HERMOSA BEACH HISTORICAL SOCIETYCAA54 $246,228$244,051 Secretary$0 Same NTEE code A54, revenue within 2x, same state
HURST RANCH HISTORICAL FOUNDATIONSCAA54 $325,941$233,249 President$0 Same NTEE code A54, revenue within 2x, same state
PALM SPRINGS HISTORICAL SOCIETYCAA54 $576,635$253,037 DIRECTOR$0 Same NTEE code A54, revenue within 2x, same state
MUSEUM OF AMERICAN HERITAGECAA54 $428,902$344,438 FORMER EXECUTIVE DIRECTOR$80,588 Same NTEE code A54, revenue within 2x, same state
NAPA VALLEY MUSEUMCAA54 $766,584$954,118 EXECUTIVE DIRECTOR$151,951 Same NTEE code A54, revenue within 2x, same state
LOMPOC MUSEUM ASSOCIATES INCCAA54 $433,480$131,004 Director$53,068 Same NTEE code A54, revenue within 2x, same state
RICHMOND MUSEUM ASSN INCCAA54 $257,685$307,174 EXECUTIVE DI$58,240 Same NTEE code A54, revenue within 2x, same state
MOULTON FAMILY FOUNDATION INCCAA54 $726,964$534,627 Exec Director$99,005 Same NTEE code A54, revenue within 2x, same state
LACIS MUSEUM OF LACE AND TEXTILES INCCAA54 $795,492$390,335 Trustee$0 Same NTEE code A54, revenue within 2x, same state

Who funds organizations like this

Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).

GrantorTypeTotal givenGrantsOrganizations fundedYearsWhich ones
COMMUNITY FOUNDATION OF NORTH CENTRAL FLORIDA INC DAF sponsor$2,346,57913 12013–2024 MATHESON HISTORY MUSEUM INC
FIDELITY INVESTMENTS CHARITABLE GIFT FUND DAF sponsor$1,355,40555 192016–2024 NICHOLS HOUSE MUSEUM INC; SMITHFIELD-PRESTON FOUNDATION; ESTRELLA WARBIRDS MUSEUM INC; ROCK FORD FOUNDATION and 15 more
COMMUNITY FDN OF GREATER DES MOINES DAF sponsor$1,293,026150 12010–2024 SALISBURY HOUSE FOUNDATION
DONOR ADVISED CHARITABLE GIVING DAF sponsor$1,260,50349 172014–2024 ROCK FORD FOUNDATION; FRIENDS OF BANNING PARK CORPORATION; HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR FORCE BASE INDIANA; DIPLOMACY CENTER FOUNDATION and 13 more
ARGYROS FAMILY FOUNDATION Private foundation$1,085,0005 12020–2024 BALBOA ISLAND MUSEUM AND HISTORICAL SOCIETY
AMERICAN GIFT FUND DAF sponsor$842,0007 22020–2024 AMERICAN BOOKBINDERS MUSEUM; MIDWEST LUMBER MUSEUM INC
CARNEGIE CORPORATION OF NEW YORK Private foundation$750,0001 12014–2014 DIPLOMACY CENTER FOUNDATION
LANCASTER COUNTY COMMUNITY FOUNDATION DAF sponsor$749,83714 12010–2024 ROCK FORD FOUNDATION
WINDGATE CHARITABLE TRUST Private foundation$670,0006 12023–2025 CALICO ROCK COMMUNITY FOUNDATION INC
THE ANNENBERG FOUNDATION Private foundation$666,6662 12013–2014 DIPLOMACY CENTER FOUNDATION
NATIONAL PHILANTHROPIC TR DAF sponsor$570,50018 92014–2024 ROWLAND FREEDOM CENTER; NICHOLS HOUSE MUSEUM INC; NATIONAL FOOD AND BEVERAGE FOUNDATION; DIPLOMACY CENTER FOUNDATION and 5 more
MIKI F YOUNG CHARITABLE TRUST Private foundation$555,0005 12020–2024 INTERNATIONAL PRINTING MUSEUM FOUNDATION
ANDREW W MELLON FOUNDATION Private foundation$550,0001 12024–2024 YOUR NEIGHBORHOOD MUSEUM
BANK OF AMERICA CHARITABLE FOUNDATION INC Private foundation$535,88728 132012–2022 DIPLOMACY CENTER FOUNDATION; GENERAL DOUGLAS MACARTHUR FOUNDATION; HULL HOUSE FOUNDATION; NAPA VALLEY MUSEUM and 9 more
GREATER SALINA COMMUNITY FOUNDATION DAF sponsor$521,7144 12019–2024 SALINA INNOVATION FOUNDATION

The full list · all similar organizations

Where the money went

Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

2024 · Form 990 · $57,459 spent · pay $0 · grants $0 · events $1,623
LineAs describedTotalProgramManagementFundraisingShare
Other (as described)HOUSE RESTORATION AND R $34,466$34,466-- 60.0%
Other (as described)DOCENT ACTIVITIES $6,566$5,944$622- 11.4%
Other (as described)ARCHIVAL AND STORAGE CO $6,210$6,210-- 10.8%
Information technology $2,650$2,650-- 4.6%
Office expenses $2,615$2,162$453- 4.6%
Conferences, conventions and meetings $1,623$1,623-- 2.8%
Other (as described)TELEPHONE $1,393-$1,393- 2.4%
Insurance $816-$816- 1.4%
Advertising and promotion $700$700-- 1.2%
Fees: accounting $320-$320- 0.6%
All other expenses $100-$100- 0.2%
Total$57,459100%

View the filing

2023 · Form 990 · $23,499 spent · pay $0 · grants $0 · events $1,866
LineAs describedTotalProgramManagementFundraisingShare
Other (as described)ARCHIVAL AND STORAGE CO $5,125$5,125-- 21.8%
Other (as described)HOUSE RESTORATION AND R $4,916$4,916-- 20.9%
Other (as described)DOCENT ACTIVITIES $4,632$4,401$231- 19.7%
Office expenses $2,705$1,514$1,191- 11.5%
Information technology $2,043$2,043-- 8.7%
Conferences, conventions and meetings $1,866$1,866-- 7.9%
Other (as described)TELEPHONE $1,180-$1,180- 5.0%
Insurance $586-$586- 2.5%
Fees: accounting $346-$346- 1.5%
All other expenses $100-$100- 0.4%
Total$23,499100%

View the filing

2022 · Form 990 · $19,895 spent · pay $0 · grants $0 · events $3,178
LineAs describedTotalProgramManagementFundraisingShare
Other (as described)ARCHIVAL AND STORAGE CO $8,538$8,538-- 42.9%
Office expenses $3,499$3,499-- 17.6%
Other (as described)HOUSE RESTORATION AND R $1,482$1,482-- 7.4%
Other (as described)TELEPHONE $1,332-$1,332- 6.7%
Other (as described)DUES & SUBSCRIPTIONS $1,320-$1,320- 6.6%
All other expenses $1,272$1,272-- 6.4%
Information technology $862-$862- 4.3%
Travel $589$589-- 3.0%
Insurance $560-$560- 2.8%
Fees: accounting $291-$291- 1.5%
Conferences, conventions and meetings $150$150-- 0.8%
Fundraising events Eventdirect expenses; gross income $10,083$3,028reported apart
Total$19,895100%

View the filing

2021 · Form 990 · $95,139 spent · pay $0 · grants $0 · events $0
LineAs describedTotalProgramManagementFundraisingShare
Payments to affiliates $80,500$80,500-- 84.6%
Other (as described)ARCHIVAL AND STORAGE CO $7,876$7,876-- 8.3%
Office expenses $1,840-$1,840- 1.9%
Other (as described)TELEPHONE $1,193-$1,193- 1.3%
Fees: accounting $990-$990- 1.0%
Insurance $717-$717- 0.8%
Other (as described)HOUSE RESTORATION AND R $710$710-- 0.7%
Other (as described)DOCENT ACTIVITIES $665$665-- 0.7%
Information technology $648-$648- 0.7%
Total$95,139100%

View the filing

2020 · Form 990 · $23,178 spent · pay $0 · grants $0 · events $80
LineAs describedTotalProgramManagementFundraisingShare
Other (as described)HOUSE RESTORATION AND REPAIR $6,897$6,897$0$0 29.8%
Other (as described)ARCHIVAL AND SUPPLY STORAGE COSTS $6,699$6,699$0$0 28.9%
Other (as described)COST OF SALES SUPPLIES $2,419$2,419$0$0 10.4%
Insurance $1,881$1,881$0$0 8.1%
Office expenses $1,477$1,477$0$0 6.4%
Other (as described)SALES TAX PAID TO CA STATE $1,361$1,361$0$0 5.9%
Information technology $1,047$1,047$0$0 4.5%
Fees: accounting $1,030$1,030$0$0 4.4%
Fees: legal $210$210$0$0 0.9%
Conferences, conventions and meetings $80$80$0$0 0.3%
Travel $77$77$0$0 0.3%
Total$23,178100%

View the filing