Hamden Hall School Inc

Name: IRS record for Hamden Hall School Inc
Creator: Internal Revenue Service
License: https://www.usa.gov/government-copyright

Hamden, CT. EIN 06-0662137. Reported $31,274,658 of revenue for 2023 on its Form 990.

The IRS record

Registered name: HAMDEN HALL SCHOOL INC; As the IRS records it, which is how it appears in their own search.
Employer Identification Number: 06-0662137; The identifier the IRS uses for this organization.
Recognized under: 501(c)(3) — charitable, religious, educational, scientific; The subsection of the code its exemption was granted under.
Recognized in: 1946; The year of the IRS ruling.
Classification: Education; NTEE code B20Z, assigned at registration.
Gifts to it: Contributions are deductible; Whether the IRS treats a contribution to this organization as deductible.
Legal form: Corporation; How the organization is constituted, as recorded at registration.
Location of record: Hamden, CT; The address the IRS holds, not necessarily where it operates.
Most recent filing: Form 990; For tax year 2023.

$31.3 million
Total revenue: $31,274,658; Contributions, grants, program service revenue and investment income.; $29.2 million
Total expenses: $29,246,148; As reported on the return.; $58.1 million
Total assets, book value: $58,112,364; At the end of the year, at what the organization paid for them.; 25
People listed: Officers, directors, trustees, key employees and highest-paid employees.; $559.3 thousand
Largest reported compensation: $559,281; Reported for Robert Izzo.

Total revenue: $31,274,658, 2023: By the revenue it reported, ranks 13,993rd of 685,136 organizations with revenue on their return nationally, 206th of 9,548 in Connecticut and 2,073rd of 72,554 in Education. Larger than 97% of the 685,136 organizations with revenue on their return nationally. It is < 0.1% of the $4,505,194,528,546 reported by every organization with a return on record.
Largest reported compensation: $559,281, 2023: By the largest compensation it reported paying, ranks 15,496th of 261,691 organizations reporting compensation nationally, 253rd of 3,470 in Connecticut and 1,518th of 26,220 in Education. Larger than 94% of the 261,691 organizations reporting compensation nationally.

Other organizations in the same state and category as Hamden Hall School Inc
Organization	Revenue
Yale University	$6,841,256,079
Boehringer Ingelheim Cares Foundation Inc	$2,057,266,961
Quinnipiac University	$658,577,859
Sacred Heart University	$539,970,186
Fairfield University	$489,308,458
University of New Haven	$392,215,175

IRS Tax Exempt Organization Search — the exemption record this page is built from. Search for EIN 06-0662137; the IRS search has no address that opens one organization directly.
ProPublica Nonprofit Explorer — the same filings with scanned returns going back further. Reporting by ProPublica.

More in Connecticut and under Education. All organizations: nonprofits.

Everything here is what the organization told the IRS about itself. The IRS publishes returns as filed and does not audit them first.
The figures describe the most recent year on record, which is usually one to two years behind, and not the organization’s current position.
Nothing here says whether the organization does its work well, or how it spends what it raises beyond the totals on the form.

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Data retrieved September 19, 2026