Skip to content
Plinth
Funding

California · Nonprofit

HARVARD-WESTLAKE SCHOOL

HARVARD-WESTLAKE SCHOOL (California) receives grants from 195 organizations whose IRS filings report $82,721,321 to it, the largest being THE OTIS BOOTH FOUNDATION ($20,190,000). 151 of them have funded it in more than one year.

$128M
Revenue FY2025
195
Funders on record
$83M
Grants received
$707M
Net assets
151/195 repeat funderspeak grant-dependency 11%

Against its field

HARVARD-WESTLAKE SCHOOL holds deeper cash reserves than three-quarters of the 671 education nonprofits its size.

Operating margin12% · above the median
Months of reserve17.0mo · top quartile
Revenue growth (annualized)2% · bottom quartile

this organization peer median middle 50% of peers· 671 education nonprofits over $100M, FY2025

Three funders worth looking at

Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.

See all 12 prospects and why each one surfaced →
01The organization over time

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.

100 = 20172017 Revenue 100 ($106M) Expenses 100 ($81M) Net assets 100 ($342M)2018 Revenue 103 ($109M) Expenses 111 ($90M) Net assets 106 ($363M)2019 Revenue 109 ($116M) Expenses 110 ($89M) Net assets 115 ($393M)2020 Revenue 92 ($98M) Expenses 109 ($89M) Net assets 116 ($399M)2021 Revenue 118 ($126M) Expenses 107 ($86M) Net assets 147 ($504M)2022 Revenue 127 ($135M) Expenses 120 ($97M) Net assets 147 ($502M)2023 Revenue 146 ($155M) Expenses 127 ($103M) Net assets 165 ($565M)2024 Revenue 145 ($155M) Expenses 133 ($108M) Net assets 192 ($656M)2025 Revenue 121 ($128M) Expenses 139 ($113M) Net assets 207 ($707M)
'17'18'19'20'21'22'23'24'25
Revenue (121)Expenses (139)Net assets (207)Peer revenue range

How it's funded, over time

Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

21% of HARVARD-WESTLAKE SCHOOL’s revenue is contributions — more donation-reliant than the typical peer (14% for the typical peer).

This organization
Typical peer · 729 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 9 reported years ran a deficit.

$25M
17
$19M
18
$27M
19
$9.2M
20
$39M
21
$38M
22
$52M
23
$46M
24
$15M
25
17
months of
reserve
02Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 69 funders to 96 funders, grant income rose $4.4M → $17M.

24 of 195 of your funders are donor-advised or pass-through sponsors (tagged DAF)37% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.

Left out of every figure on this page: $957k from 6 payers (the payer shares this organization's board, largest Jewish Community Foundation of the Jewish Federation Council of Greater Los Angeles). These are real filings, and they are not money HARVARD-WESTLAKE SCHOOL raised.

From the IRS filings of HARVARD-WESTLAKE SCHOOL’s funders (the co-funder graph). Top 30 of 195 funders by total. 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.

How concentrated its funding is

HARVARD-WESTLAKE SCHOOL has a broad base — no single funder exceeds 24% of grant income, and it takes 5 funders to reach half.

the vertical line marks half of all grant income — 5 funders to its left

38% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund HARVARD-WESTLAKE SCHOOL.

24%
largest funder
42%
top three
~11
effective funders

Largest funder’s share by year: 2017 25% · 2018 20% · 2019 18% · 2020 17% · 2021 48% · 2022 33% · 2023 30%growing more concentrated.

“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. 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.

How long its funders stay

57% of HARVARD-WESTLAKE SCHOOL's funders are still giving 3 years after their first grant; 77% give in more than one year at all.

first grant+1y+2y+3y+4y+5y+6y

Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.

Where its funders are

91% of HARVARD-WESTLAKE SCHOOL's grant income comes from California funders.

IL
MI
NY
MA
NV
WY
PA
NJ
CT
RI
CA
CO
VA
MD
DE
AR
TN
NC
HI
TX

In-state vs out-of-state, by year

17
18
19
20
21
22
23
California out of state home

Funder states come from each funder’s own filing. $30M arriving through sponsors registered in 15 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. 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.

03Its place in the field

Funders to approach

Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first. Your 195 funders put you typical among the 400 organizations that share them.

From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.

Organizations like HARVARD-WESTLAKE SCHOOL

Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of US filings — the closest peers, and often the clearest route to shared or prospective funders.

In California

Nationally

04Profile & governance

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

Where the money goes

76% of spending goes to programs.

Program 76%Management 19%Fundraising 5%

Governance

34
board members
100%
independent
Conflict-of-interest policyWhistleblower policyDocument retentionBoard reviewed the 990Audited financials

Public support

69%

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

Footprint & structure

Files a return copy in 1 state

CA

Part of a family of 6 related entities

  • 4141 Whitsett Management LLC · disregarded
  • Domus Primus LLC · disregarded
  • Domus 4297 LLC · disregarded
  • Domus 4100 LLC · disregarded
  • Domus Member LLC · disregarded

Screen this organization

A dated, signed PDF of the compliance screen for HARVARD-WESTLAKE SCHOOL: 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.

A paid feature, included from the $75 plan up. Sign in to download.

Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. How the screen works · on the API as GET /api/screening/{ein}?format=pdf

Questions and answers

Who funds HARVARD-WESTLAKE SCHOOL?
HARVARD-WESTLAKE SCHOOL (California) receives grants from 195 organizations whose IRS filings report $82,721,321 to it, the largest being THE OTIS BOOTH FOUNDATION ($20,190,000). 151 of them have funded it in more than one year.
How many funders does HARVARD-WESTLAKE SCHOOL have?
IRS filings report 195 organizations giving $82,721,321 in grants to HARVARD-WESTLAKE SCHOOL, 151 of which have funded it in more than one year.
Who is the largest funder of HARVARD-WESTLAKE SCHOOL?
THE OTIS BOOTH FOUNDATION is the largest funder on record, with $20,190,000 in grants. The full list of funders is on this page.
How can an organization like HARVARD-WESTLAKE SCHOOL 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 195funders 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 August 27, 2026. What this page cannot tell you · view filing