PROOF SCHOOL (EIN 463770194) - Form 990 Financial Analysis & Trantor Score

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Financial Vulnerability Assessment (Tuckman-Chang)

4 risk indicators measuring financial stability and operational resilience

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Financial Trends

Organization Details

Formation Year

2013

Legal Domicile

Principal Officer

SAMUEL VANDERVELDE

Phone

4159300182

Tax Period

2024-07-01 to 2025-06-30

PROOF SCHOOL, founded in 2013, is a mid-sized nonprofit in the Education sector that reported $11.2M in total revenue in fiscal year 2024. Revenue surged 67% from the prior year, signaling strong growth momentum. The organization ran a surplus of $4.5M, a strong 40% operating margin.

Mission

OFFERING A LIBERAL ARTS EDUCATION FOR KIDS WHO LOVE MATH, REASONING AND COMMUNICATION.

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Trantor Score

Financial Health Score (300–850) · Liquidity · Solvency · Sustainability · Efficiency

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Liquidity (40%) • Solvency (30%) • Sustainability (20%) • Efficiency (10%)

Financial Overview (2024)

Revenue Breakdown

Contributions & Grants $4,207,457

Program Service Revenue $6,597,629

Investment Income $353,335

Other Revenue $5,792

TOTAL REVENUE $11,164,213

Expense Breakdown

Grants Paid $1,200,072

Salaries & Benefits $3,728,945

Fundraising Expenses $17,899

Program Expenses $6,112,438

Other Expenses $1,721,184

TOTAL EXPENSES $6,650,201

Year-over-Year Comparison

	2024	2023	Change
Revenue	$11,164,213	$6,704,431	+0.7%
Expenses	$6,650,201	$5,936,734	+0.1%
Net Income	$4,514,012	$767,697	+4.9%

Key Indicators

✗ Grants to Organizations ✓ Grants to Individuals ✗ Lobbying ✗ Political Activity ✗ Foreign Activities ✗ Donor Advised Fund ✓ Schedule B Required

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Financial Health Indicators

Comprehensive financial analysis: Altman Z-Score, liquidity, solvency, sustainability, efficiency, and growth metrics

Financial Distress Indicator

Liquidity & Cash Position

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Altman Z-Score • Liquidity Ratios • Solvency Analysis • Growth Indicators • Efficiency Metrics

Governance

Voting Members

Independent Members

Employees

Volunteers

Governance Policies

✓ Conflict of Interest Policy

✓ Whistleblower Policy

✓ Document Retention Policy

Special Practices & Reported Activities

✓ Operated a School

✗ Operated a Hospital

✗ Provided First Class Travel

✗ Reported Conflict of Interest

✗ Reported Asset Diversion

✗ Excess Benefit Transaction

✗ Made Political Expenditures

✗ Engaged in Lobbying

✗ Operated Donor Advised Fund

✗ Maintained Art Collections

✗ Filed Form 720

Compensation of Officers, Directors & Key Employees

Total Officers

$293,292

Total Directors

$293,292

Key Employees

$515,868

Highest Compensated

reported

Name	Title	Hours/Week	Role	Reportable Comp	Other Comp	Total
SAMUEL VANDERVELDE	HEAD OF SCHOOL	40.00	Officer Director	$267,945	$25,347	$293,292
PAUL ZEITZ	BOARD CHAIR	2.00	Officer Director	$0	$0	$0
PERRY TAM	TREASURER	0.50	Officer Director	$0	$0	$0
ALON AMIT	SECRETARY	0.50	Officer Director	$0	$0	$0
JAMES SOTIROS	BOARD OF DIRECTORS	0.50	Director	$0	$0	$0
RAVI VAKIL	BOARD OF DIRECTORS	0.50	Director	$0	$0	$0
LISA PARK	BOARD OF DIRECTORS	0.50	Director	$0	$0	$0
SUSAN ATHEY	BOARD OF DIRECTORS	0.50	Director	$0	$0	$0
CAROLINE JONES	BOARD OF DIRECTORS	0.50	Director	$0	$0	$0
ZACHARY SIFUENTES	DEAN OF HUMANITIES	40.00	Key Emp	$242,597	$19,278	$261,875
KATHY LIN	DIRECTOR OF ADMISSIONS	40.00	Key Emp	$253,120	$873	$253,993
SUSAN DURST	MATH & MUSIC TEACHER	40.00	Highest	$122,671	$8,083	$130,754
ILYSE GORDIS	LANGUAGE ARTS & HISTORY TEACHER	40.00	Highest	$110,781	$25,843	$136,624
JASON HOROWITZ	MATH & SCIENCE TEACHER	40.00	Highest	$124,168	$12,757	$136,925
MICHAEL YETMAN	DIR OF SCIENCE CURRICULAR & PROGRAMS	40.00	Highest	$111,605	$17,467	$129,072
CONNIE YOU	LITERATURE TEACHER	40.00	Highest	$114,657	$11,154	$125,811

Note: Compensation data is self-reported by the organization on their Form 990. "Reportable Comp" includes salary, bonuses, and other reportable compensation from the organization and related organizations. "Other Comp" includes benefits, deferred compensation, and non-taxable benefits.

Historical Data

Year	Revenue	Expenses	Assets	Net Income
2025	$11,164,213	$6,650,201	$19,536,521	$4,514,012
2024	$6,704,431	$5,936,734	$11,550,096	$767,697
2023	$6,530,236	$5,819,619	$10,068,626	$710,617
2022	$6,376,046	$5,884,439	$9,200,704	$491,607
2021	$6,171,169	$5,294,974	$8,538,948	$876,195
2020	$5,307,911	$4,932,486	$7,842,960	$375,425
2019	$4,865,600	$4,529,479	$6,992,457	$336,121
2018	$4,063,295	$3,602,065	$5,943,386	$461,230

PROOF SCHOOL