Castilleja School Foundation: Nonprofit Profile, Financials & Form 990 (EIN 94-0373222)

Revenue by fiscal year
FY2020	$29.3M
FY2021	$35.9M
FY2022	$34.9M
FY2023	$33.9M
FY2024	$34.5M
FY2025	$55.5M

Expenses by fiscal year
FY2020	$29.7M
FY2021	$29.5M
FY2022	$32.3M
FY2023	$34.0M
FY2024	$38.2M
FY2025	$37.1M

Net assets by fiscal year
FY2020	$121.3M
FY2021	$145.6M
FY2022	$140.8M
FY2023	$146.9M
FY2024	$151.7M
FY2025	$178.6M

Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Aug 1943.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

82 cents of each dollar spent went to programs.

82%

12%

Program services 82% · $30.5M Management & general 12% · $4.6M Fundraising 6% · $2.0M

Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.

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Who runs it and what they're paid

33 people listed on the 990; $4.3M paid to officers and key staff.

Part VII, Section A · reportable compensation · most recent filed roster (FY2024); the FY2025 filing did not itemize Part VII

Nanci Zabatta Kauffman

Former Hos

$1,811,706Pt VII · Sec A

Kathleen Layendecker

Assoc. Hos for Finance & Ops

$723,905Pt VII · Sec A

Julia Eells

Head of School

$471,477Pt VII · Sec A

Sung Kim

Advancement Director

$307,491Pt VII · Sec A

Laura Zappas

Head of Middle School

$243,859Pt VII · Sec A

Gabrille McColgan

Dir, Coll Couns/Upper Sch Acad Pol

$200,681Pt VII · Sec A

Christina Gwin

Dean of Faculty

$198,678Pt VII · Sec A

Susan Raymond

Director of Finance & Accounting

$195,327Pt VII · Sec A

Nanci Zabatta Kauffman’s $1.8M as Former Hos is at the 100th percentile of top reported officer pay among 3683 $10–100M education nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.

Compensation history total reportable pay by year · 8 named individuals · Part VII

Name	FY2025	FY2024	FY2023	FY2022	FY2021	FY2020
Nanci Zabatta Kauffman	$1,811,706	$2,021,708	$1,012,038	$1,083,290	—	—
Kathleen Layendecker	$723,905	$466,542	$420,003	$406,617	—	—
Julia Eells	$471,477	—	—	—	—	—
Kathleen Z Layendecker	—	—	—	—	$319,195	$306,126
Sung Kim	$307,491	$255,215	$222,932	—	—	—
Nanci Kauffman	—	—	—	—	$299,087	$278,277
Laura Zappas	$243,859	$179,303	—	—	—	—
Sung K Kim	—	—	—	$218,766	—	—

Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.

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Questions the 990 asks

The form asks each of these directly. These are the filed answers.

Family or business ties among officersPt VI · Ln 2No
Top official's pay set by an independent reviewPt VI · Ln 15aYes

Programs and updates

Provides a college preparatory education for girls in grades 6 through 12 to foster their academic and personal growth.

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Provided by the organization

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1 program · $30.5M · in their own filed words · FY2024

01

Castilleja provides college preparatory education for girls from grade 6 through grade 12.

$30.5Mprogram expense

Funders

Who pays for it.

From grant filings on record. Receipts are incomplete: individual donors are never listed.

Grants

Schedule I · received and paid

Grants received · FY2025

Pichai Family FoundationFY2025$2.0M

The Ayco Charitable FoundationFY2025$28K

Total grants receivedfrom 2 funders$2.0M

Grants paid · 10 grants · $24.2M · 2019–2024

Unitemized GrantFY2024$4,564,069

Unitemized GrantFY2024$4,000

Unitemized GrantFY2023$4,368,858

Unitemized GrantFY2022$3,876,252

Unitemized GrantFY2021$3,978,456

Community Legal Services in East Palo Alto INCCA · FY2021$22,082

Unitemized GrantFY2020$3,746,633

Maven Project Mv LLCCA · FY2020$20,674

Unitemized GrantFY2019$3,638,123

Second Harvest of Silicon ValleyCA · FY2019$25,913

By the numbers

The FY2025 990, line by line.

Download 990

from philanthropy.org

1The main four

Money inPt VIII

$55.5M

Ln 12

Fees for servicesLn 2g$27.4M

Gifts and grantsLn 1h$25.1M

Investment incomeLn 3$3.2M

Money outPt IX

$37.1M

Ln 25

Programscol B$30.5M

Managementcol C$4.6M

Fundraisingcol D$2.0M

Owns and owesPt X

$178.6M

net assets · Ln 32

Cash and savingsLn 1–2$108.3M

Total assetsLn 16$317.0M

LiabilitiesLn 26$138.4M

PeoplePt VI, VII

33

listed · VII A

PaidVII A9

Voting boardVI 1a25

IndependentVI 1b24

2In more detail

Revenue in detailPt VIII

Gifts and grantsLn 1h$25.1M

Noncash giftsLn 1g$887K

Fundraising eventsLn 1c$1.1M

Fees for servicesLn 2g$27.4M

Investment incomeLn 3$3.2M

Gains on assetsLn 7$670K

Total revenueLn 12$55.5M

Assets in detailPt X, end of year

CashLn 1$93.0M

SavingsLn 2$15.3M

Cash and savings togetherLn 1–2$108.3M

InvestmentsLn 11–13$141.9M

Land, buildings, equipmentLn 10c$52.7M

Other assetsLn 15$759K

Total assetsLn 16$317.0M

LiabilitiesLn 26$138.4M

Net assetsLn 32$178.6M

OperationsPt I, VI

EmployeesI 5299

VolunteersI 6215

Fiscal year endsHeaderJune

Conflict-of-interest policyVI 12aYes

Whistleblower policyVI 13Yes

Records policyVI 14Yes

3Year over year

Balance sheet, start vs end of yearPt X · col A, B

Line	Start FY25	End FY25
Cash and savingsLn 1–2	$7.3M	$108.3M
InvestmentsLn 11–13	$121.2M	$141.9M
Land, buildings, equipmentLn 10c	$38.9M	$52.7M
Total assetsLn 16	$178.8M	$317.0M
LiabilitiesLn 26	$27.0M	$138.4M
Net assetsLn 32	$151.7M	$178.6M

4Every line

Statement of functional expensesPt IX · every line

Line	Total	Programs	Management	Fundraising
Grants to domestic individualsLn 2	$4.6M	$4.6M
Pay of current officers, directors and key staffLn 5	$3.0M	$904K	$1.7M	$353K
Other salaries and wagesLn 7	$15.2M	$13.8M	$384K	$987K
Pension plan contributionsLn 8	$1.2M	$1.1M	$91K	$59K
Other employee benefitsLn 9	$2.0M	$1.7M	$165K	$128K
Payroll taxesLn 10	$1.2M	$1.0M	$133K	$80K
Legal feesLn 11b	$387K		$387K
Accounting feesLn 11c	$73K		$73K
Investment management feesLn 11f	$77K		$77K
Other fees for servicesLn 11g	$1.7M	$691K	$922K	$67K
Advertising and promotionLn 12	$117K	$8K	$2K	$107K
Office expensesLn 13	$468K	$63K	$243K	$162K
Information technologyLn 14	$552K	$501K	$25K	$27K
OccupancyLn 16	$1.1M	$1.1M
TravelLn 17	$176K	$176K
Conferences, conventions and meetingsLn 19	$245K	$183K	$61K	$960
Depreciation, depletion and amortizationLn 22	$1.4M	$1.4M
InsuranceLn 23	$482K	$228K	$254K
Other expenses (24a–d)Ln 24	$3.2M	$3.0M	$51K	$76K
Total functional expensesLn 25	$37.1M	$30.5M	$4.6M	$2.0M

Filing history

Year	Money in	Money out	In minus out	Net assets	Download
FY2025 Latest Viewing	$55.5M	$37.1M	$18.4M	$178.6M	990 PDF
FY2024	$34.5M	$38.2M	−$3.6M	$151.7M	990 PDF
FY2023	$33.9M	$34.0M	−$67K	$146.9M	990 PDF
FY2022	$34.9M	$32.3M	$2.6M	$140.8M	990 PDF
FY2021	$35.9M	$29.5M	$6.4M	$145.6M	990 PDF
FY2020	$29.3M	$29.7M	−$354K	$121.3M	990 PDF

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Schedules filed Part IV

III · Programs I · Grants R · Related orgs G · Fundraising L · Interested persons A · Public support F · Foreign M · Noncash

See the full FY2025 990 (6 parts)

Part I · Summary $55,547,071 revenue, 12 lines filed

I-8 Contributions and grantsPrior year $6,906,727$25,103,118

I-9 Program service revenuePrior year $25,718,278$27,360,926

I-10 Investment incomePrior year $2,130,253$3,185,132

I-11 Other revenuePrior year −$223,655−$102,105

I-12 Total revenuePrior year $34,531,603$55,547,071

I-13 Grants and similar amounts paidPrior year $4,370,004$4,568,069

I-14 Benefits paid to membersPrior year $0$0

I-15 Salaries and benefitsPrior year $23,212,236$22,607,234

I-16a Professional fundraising feesPrior year $0$0

I-17 Other expensesPrior year $10,582,475$9,941,257

I-18 Total expensesPrior year $38,164,715$37,116,560

I-19 Revenue less expensesPrior year −$3,633,112$18,430,511

Part VI · Governance 24 of 25 board members independent, no flags

VI-1a Voting members of the governing body25

VI-1b Independent voting members24

VI-2 Family or business relationship among officers or directorsNo

VI-12a Written conflict of interest policyYes

VI-13 Written whistleblower policyYes

VI-14 Document retention and destruction policyYes

VI-15a Process for setting top official's payYes

Part VIII · Statement of revenue $55,547,071 across 11 lines filed

VIII-1c Fundraising events$1,149,187

VIII-1f All other contributions, gifts and grants$23,953,931

VIII-1g Noncash contributions (included above)$886,566

VIII-1h Total contributions, gifts and grants$25,103,118

VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Related to mission $27,360,926$27,360,926

VIII-3 Investment incomeUnrelated business −$4,162 · Excluded from tax $2,519,179$2,515,017

VIII-6 Net rental income or lossExcluded from tax $103,904$103,904

VIII-7 Net gain or loss on sales of assetsExcluded from tax $670,115$670,115

VIII-8 Net income from fundraising eventsExcluded from tax −$215,602−$215,602

VIII-11a-d Other revenue, itemized rows (sum of 11a–11d as filed)Related to mission $9,593$9,593

VIII-12 Total revenueRelated to mission $27,370,519 · Unrelated business −$4,162 · Excluded from tax $3,077,596$55,547,071

Part IX · Statement of functional expenses $37,116,560 across 19 lines filed

IX-2 Grants to domestic individualsPrograms $4,568,069$4,568,069

IX-5 Pay of current officers, directors and key staffPrograms $904,445 · Management $1,715,463 · Fundraising $352,657$2,972,565

IX-7 Other salaries and wagesPrograms $13,820,290 · Management $383,776 · Fundraising $986,734$15,190,800

IX-8 Pension plan contributionsPrograms $1,071,346 · Management $91,430 · Fundraising $59,277$1,222,053

IX-9 Other employee benefitsPrograms $1,689,771 · Management $164,875 · Fundraising $128,303$1,982,949

IX-10 Payroll taxesPrograms $1,025,500 · Management $133,479 · Fundraising $79,888$1,238,867

IX-11b Legal feesManagement $386,584$386,584

IX-11c Accounting feesManagement $73,400$73,400

IX-11f Investment management feesManagement $76,910$76,910

IX-11g Other fees for servicesPrograms $691,469 · Management $922,013 · Fundraising $67,451$1,680,933

IX-12 Advertising and promotionPrograms $7,592 · Management $2,291 · Fundraising $107,252$117,135

IX-13 Office expensesPrograms $63,176 · Management $243,422 · Fundraising $161,560$468,158

IX-14 Information technologyPrograms $501,033 · Management $24,601 · Fundraising $26,807$552,441

IX-16 OccupancyPrograms $1,095,237$1,095,237

IX-17 TravelPrograms $175,722$175,722

IX-19 Conferences, conventions and meetingsPrograms $182,622 · Management $61,106 · Fundraising $960$244,688

IX-22 Depreciation, depletion and amortizationPrograms $1,432,410$1,432,410

IX-23 InsurancePrograms $228,487 · Management $253,602$482,089

IX-24 Other expenses (24a–d)Programs $3,028,312 · Management $51,319 · Fundraising $75,919$3,155,550

IX-25 Total functional expensesPrograms $30,485,481 · Management $4,584,271 · Fundraising $2,046,808$37,116,560

Part X · Balance sheet $316,977,746 assets, 19 lines filed

X-1 Cash, non-interest-bearingStart of year $6,186,315$93,010,695

X-2 Savings and temporary cash investmentsStart of year $1,085,620$15,268,734

X-3 Pledges and grants receivableStart of year $1,295,129$2,892,368

X-4 Accounts receivableStart of year $8,636,461$9,887,643

X-9 Prepaid expenses and deferred chargesStart of year $754,840$559,852

X-10c Land, buildings and equipment, netStart of year $38,863,425$52,650,825

X-11 Publicly traded securitiesStart of year $54,537,340$72,061,112

X-12 Other securitiesStart of year $66,686,198$69,887,087

X-15 Other assetsStart of year $736,402$759,430

X-16 Total assetsStart of year $178,781,730$316,977,746

X-17 Accounts payable and accrued expensesStart of year $3,956,408$4,433,409

X-19 Deferred revenueStart of year $22,831,672$23,619,996

X-20 Tax-exempt bond liabilitiesStart of year $0$110,063,089

X-25 Other liabilitiesStart of year $261,606$262,585

X-26 Total liabilitiesStart of year $27,049,686$138,379,079

X-27 Net assets without donor restrictionsStart of year $95,508,445$117,008,387

X-28 Net assets with donor restrictionsStart of year $56,223,599$61,590,280

X-32 Total net assets or fund balancesStart of year $151,732,044$178,598,667

X-33 Total liabilities and net assetsStart of year $178,781,730$316,977,746

Part XI · Reconciliation of net assets $178,598,667 net assets at year end

XI-1 Total revenue$55,547,071

XI-2 Total expenses$37,116,560

XI-3 Revenue less expenses$18,430,511

XI-4 Net assets at start of year$151,732,044

XI-5 Net unrealized gains (losses) on investments$8,436,112

XI-9 Other changes in net assets$0

XI-10 Net assets at end of year$178,598,667

Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File

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