Education (B200) IRS Verified DX Registered 990 on File

TOWER HILL SCHOOL

EIN: 51-0065745 · WILMINGTON, DE 19806-1112 · United States · FY 2023 Data

3 out of 5 58 / 100 Based on 2+ years of filings

Financial strength (30%) 84/100

Reliability (20%) 55/100

Effectiveness (25%) 88/100

Impact (25%) No data yet

Financial data: FY 2023 · Scored 9/13/2026

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CharityAI™ Score

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Mission Statement

Tower Hill School prepares students from diverse backgrounds for full and creative engagement with a dynamic world. Each student is provided with an educational experience that emphasizes the development of an inquisitive, discerning and critical mind; the value of being creative and aesthetically sensitive; the appreciation of physical well being; the ability to collaborate and to function as part of a team; and the growth of character.

Financial Overview — FY 2023

$39.9M

Total Revenue

$29.9M

Total Expenses

$99.1M

Net Assets

277

Employees

Revenue Sources

Expense Breakdown

Program Expense Ratio 78.9%

Fundraising Efficiency 3821.8%

Operating Reserve 39.79x

Liability-to-Asset 14.6%

Revenue Diversification 68.2%

Executive Compensation $834K

Compared with Peers

FY 2023

Compared with 3,578 similar organizations (United States, Education, $10M–$100M in expenses), FY 2023.

This organization Middle half of peers (P25–P75) Peer median

Ratio	This org	Peer median	Position (P10 → P90)
Program expense ratio Program expenses / total expenses · higher is better	78.9%	84.4%	P10P90	Below median
Admin expense ratio Management and general / total expenses · lower is better	16.9%	13.5%	P10P90	Below median
Fundraising expense ratio Fundraising expenses / total expenses · lower is better	4.2%	0.7%	P10P90	Bottom quarter
Fundraising efficiency Fundraising expenses / gross fundraising income · lower is better	3821.8%	631.2%	P10P90	Bottom quarter
Operating reserve Months of expenses covered by net assets · higher is better	39.8 mo	10.9 mo	P10P90	Top quarter
Liabilities to assets Total liabilities / total assets · lower is better	14.6%	34.2%	P10P90	Above median
Revenue concentration Share of revenue from the largest source · lower is better	68.2%	87.3%	P10P90	Top quarter
Revenue growth Year over year revenue growth	18.4%	4.8%	P10P90
Expense growth Year over year expense growth	3.8%	8.5%	P10P90
Surplus margin Surplus as a share of revenue	25.2%	2.7%	P10P90

Financial History

Year	Revenue	Expenses	Net Assets	Program %	Staff
2023	$39.9M	$29.9M	$99.1M	78.9%	277
2022	$33.7M	$28.8M	$90.9M	79.7%	274
2021	$48.8M	$27.8M	N/A	—	248

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Organization Details

EIN: 51-0065745
State: DE
City: WILMINGTON
ZIP: 19806-1112
Classification: B200
Category: Education
Rating: 3★
Coverage: A
Last Updated: Aug 2026
IRS Ruling Year: 1919
Foundation Code: 11
Form 990: On File

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CharityAI™ rates charities from 0 to 100 using public filings (IRS Form 990 and the equivalent registries outside the US) together with the information the charity itself provides on DonationX. Ratings are recalculated every quarter, without human bias, and shown as stars.

Four pillars

Financial strength30%

Program expense ratio, fundraising efficiency, operating reserves, liabilities and revenue diversification, compared with similar organizations.

Reliability20%

Standing with the registry, filing history, verification and how complete the profile is.

Effectiveness25%

How much goes to programs and how consistently the organization delivers them.

Impact25%

The outcomes the charity reports on DonationX: people served, cost per service and results.

Stars

★★★★★ 80–100 ★★★★☆ 60–79 ★★★☆☆ 40–59 ★★☆☆☆ 20–39 ★☆☆☆☆ 1–19

A pillar with no data counts as zero. Without impact metrics the score is capped at 59 (three stars): only the charity can supply that data.
The coverage grade (A to D) says how much filing data the score rests on; NONE means there is not enough to rate.
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"Compared with peers" places the charity's key ratios against organizations of the same country, sector and size.

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