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Nonprofit · EIN 94-3151586

PORTOLA AND CASTLE ROCK FOUNDATION

Tax-exempt · LA HONDA, CA 94020

Financials

$84K$89K2023$94K$65K2024$89K$80K2025
Revenue Expenses · by fiscal year end
Financials of PORTOLA AND CASTLE ROCK FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990-EZ$89,209$80,442$8,767$174,003$6,142$167,861
December 31, 2024990-EZ$93,869$65,273$28,596$163,981$4,887$159,094
December 31, 2023990-EZ$83,535$89,321-$5,786$142,134$11,636$130,498
Financial details: 990-EZ for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$35,469
Membership dues
$8,553
Investment income
$2,276
Net income from sales of inventory
$42,911

Expenses

Compensation of officers, directors and key employees
$23,331
Professional fees and payments to contractors
$25,708
Printing, publications and postage
$3,290
Other expenses
$51,444
Program services (functional)
$38,923

Balance sheet and other

Total assets, start of year
$163,981
Total assets, end of year
$174,003
Total liabilities, end of year
$6,142
Net assets, end of year
$167,861
Cash, savings and investments
$151,312
Gross receipts
$151,231

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990-EZ for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
Becky RiveraTreasurer7$23,331
Mujtaba GhousePresident1$0
Doug BrownDirector2.8$0
Eric SchmidtDirector0.3$0
Julie ZackSecretary5$0
Michele van ZuidenVice President0.5$0
Sarah ViaggiVice President4$0
Kai BrownDirector0.1$0
Karl MosgofianDirector1.8$0
Jim MossDirector0.1$0
Daniel Benas.Director0.1$0
990-EZ for the year ended December 31, 2024: 10 people
NameTitleHours / weekCompensation
Becky RiveraTreasurer7$21,291
Eric SchmidtPresident3.8$0
Doug BrownDirector3.5$0
Mujtaba GhouseDirector1$0
Julie ZackSecretary7$0
Michele van ZuidenVice President0.5$0
Sarah ViaggiVice President1.9$0
Kai BrownDirector0.2$0
Karl MosgofianDirector1.9$0
Eric PolnoffDirector0.1$0
990-EZ for the year ended December 31, 2023: 12 people
NameTitleHours / weekCompensation
Becky RiveraTreasurer6$21,542
Eric SchmidtPresident3.8$0
Doug BrownVice President5.8$0
Mujtaba GhouseDirector1.9$0
Julie ZackSecretary10$0
Michele van ZuidenVice President0.87$0
Sarah ViaggiDirector2.1$0
Kai BrownDirector1$0
Karl MosgofianDirector1.9$0
Eric PolnoffDirector0.25$0
James RauenDirector0.25$0
Matt CortezFormer Director0$0

Address and contacts

Address (IRS master file)
9000 PORTOLA STATE PARK RD, LA HONDA, CA 94020-9723
In care of
% MUJTABA GHOUSE
Signed the 990-EZ
Becky Rivera, Treasurer

California records

California keeps its own records of charities and corporations. Search them by EIN 94-3151586 or by the name PORTOLA AND CASTLE ROCK FOUNDATION.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

Fund interpretive activities and park maintenance

990-EZ for the year ended December 31, 2025

Program accomplishments

  • Portola Redwoods Visitor Center improvements - historical window sash replacement fireplace repairs and store display hardware
    Expenses $14,646
  • Park maintenance including general maintenance vehicle maintenance water tank shade structure for Castle Rock grease trap project for Portola Redwoods campground
    Expenses $17,277
  • Interpretation - Support Kid2Parks program costs for Santa Clara county enabling school trips to Castle Rock for title I schools.
    Expenses $5,750
  • Interpretative spending including volunteer training and support for the county wide backpacking program
    Expenses $871
  • Park signage - no climbing signs for Castle Rock
    Expenses $379

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990-EZ on file
2024December 31, 2024May 15, 2025990-EZ on file
2023December 31, 2023May 15, 2024990-EZ on file

IRS record

EIN
94-3151586
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1992
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$174,003
Income (IRS master file)
$151,231

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZDecember 2025$89,209$80,442$174,003XML
990-EZDecember 2024$93,869$65,273$163,981IRS
990-EZDecember 2023$83,535$89,321$142,134XML
990-EZDecember 2022–––IRS
990-EZDecember 2021–––IRS
990-EZDecember 2020–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 94-3151586).

Questions about PORTOLA AND CASTLE ROCK FOUNDATION

What is the EIN of PORTOLA AND CASTLE ROCK FOUNDATION?
The employer identification number (EIN) of PORTOLA AND CASTLE ROCK FOUNDATION is 94-3151586.
Is PORTOLA AND CASTLE ROCK FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1992.
Are donations to PORTOLA AND CASTLE ROCK FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does PORTOLA AND CASTLE ROCK FOUNDATION file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of PORTOLA AND CASTLE ROCK FOUNDATION due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did PORTOLA AND CASTLE ROCK FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
Who are the officers and directors of PORTOLA AND CASTLE ROCK FOUNDATION?
The 990-EZ for the year ended December 31, 2025 lists 11 people; 1 received compensation from the organization, the highest $23,331 (Becky Rivera, Treasurer).
How much revenue does PORTOLA AND CASTLE ROCK FOUNDATION have?
On its 990-EZ for the year ended December 31, 2025 it reported revenue of $89,209, expenses of $80,442 and total assets of $174,003 at year end.

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