Heart Brothers Foundation Inc

Name: IRS record for Heart Brothers Foundation Inc
Creator: Internal Revenue Service
License: https://www.usa.gov/government-copyright

Northborough, MA. EIN 46-3534947. Reported $610,079 of revenue for 2024 on its Form 990.

The IRS record

Registered name: HEART BROTHERS FOUNDATION INC; As the IRS records it, which is how it appears in their own search.
Employer Identification Number: 46-3534947; 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: 2014; The year of the IRS ruling.
Classification: Voluntary Health Associations and Medical Disciplines; NTEE code G43, 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: Northborough, MA; The address the IRS holds, not necessarily where it operates.
Most recent filing: Form 990; For tax year 2024.

$610.1 thousand
Total revenue: $610,079; Contributions, grants, program service revenue and investment income.; $520.3 thousand
Total expenses: $520,339; As reported on the return.; $152.9 thousand
Total assets, book value: $152,907; At the end of the year, at what the organization paid for them.; 8
People listed: Officers, directors, trustees, key employees and highest-paid employees.; $43,500
Largest reported compensation: Reported for Leslie Ann Sullivan.

Total revenue: $610,079, 2024: By the revenue it reported, ranks 185,407th of 685,136 organizations with revenue on their return nationally, 6,049th of 21,965 in Massachusetts and 1,704th of 5,993 in Voluntary Health Associations and Medical Disciplines. Larger than 72% 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: $43,500, 2024: By the largest compensation it reported paying, ranks 176,947th of 261,691 organizations reporting compensation nationally, 5,797th of 8,165 in Massachusetts and 1,871st of 2,362 in Voluntary Health Associations and Medical Disciplines. Larger than 32% of the 261,691 organizations reporting compensation nationally.

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Sight Savers International Inc	$216,230,800
C H M C Anesthesia Foundation Inc	$190,841,798
Amego Inc	$125,913,827
Joslin Diabetes Center Inc	$77,259,482
Mab Community Services Inc	$46,458,813

IRS Tax Exempt Organization Search — the exemption record this page is built from. Search for EIN 46-3534947; 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.

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