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Washington, D.C. · Public charity

Heart Rhythm Society Inc

To improve the care of patients by promoting education, research and optimal health care policies and standards. Vision: to end death and suffering due to heart rhythm disorders.

$244k
Granted FY2025(still arriving)
7
Itemized grants FY2025
7
Organizations funded FY2024
57%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$205k
The rest is grants the schedule does not break out
Median grant, FY2025
$30,000
Largest grant, FY2025
$50,000
Organizations funded a year
3 to 7
FY2019 to FY2024
States reached, FY2025
6
Total assets, FY2025
$17M

How open it is to new grantees

In FY2024, 57% of the organizations Heart Rhythm Society Inc funded were first-time grantees, receiving 41% of its grant dollars.

New vs renewed · share of each year

In FY2024, 59% of grant dollars renewed an existing relationship; $105k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’21’22’23’24
HealthOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving6$155k100%
FY20247$255k57%
FY20235$155k80%
FY20226$205k67%
FY20213$150k67%
FY20194$200kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Health$985kEducation$200kEmployment$55kScience & Tech$50kCommunity Improvement$30k

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
WA
MN
IL
WI
NY
MA
OH
CA
MD
AZ
TN
TX

Top grantees

Largest recipients by total granted, FY2019 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
The Ohio State University$150,0003n/a
New York University$150,00030%
Johns Hopkins University$150,00030%
The University of Vermont Medical Center$100,00020%
Baylor College of Medicine$50,0001n/a
University of Arizona$50,0001n/a
University of Wisconsin Madison$50,0001n/a
Baylor College of Medicine$50,00010%
University of California San Francisco$50,0001n/a
Vanderbilt University Medical Center$50,00010%
Show all 21 grantees
All grantees of Heart Rhythm Society Inc by total granted
GranteeTotal grantedYearsShare of their budget
The Ohio State University$150,0003n/a
New York University$150,00030%
Johns Hopkins University$150,00030%
The University of Vermont Medical Center$100,00020%
Baylor College of Medicine$50,0001n/a
University of Arizona$50,0001n/a
University of Wisconsin Madison$50,0001n/a
Baylor College of Medicine$50,00010%
University of California San Francisco$50,0001n/a
Vanderbilt University Medical Center$50,00010%
Regents Univ of California$37,5001n/a
Dynocardia$30,0001n/a
Lumia Health Inc$30,0001n/a
Ximio Health Inc$30,0001n/a
TeleHealth Care Solutions LLC$15,0001n/a
Rhythm Therapeutics Inc$15,0001n/a
Kilele Health$15,0001n/a
The Uc Davis Foundation$12,50010%
Anumana Inc$10,0001n/a
Vpg Medical$10,0001n/a
Conform Medical Inc$10,0001n/a

Plus 3 recipients with no EIN on record ($55k), not named here.

Compare Heart Rhythm Society Inc with peer funders

About Heart Rhythm Society Inc

How much does Heart Rhythm Society Inc give?
Heart Rhythm Society Inc reported 7 itemized grants totaling $205,000, out of $244,000 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 3 and 7 organizations a year over FY2019 to FY2024.
What does Heart Rhythm Society Inc fund?
By grant dollars over FY2019 to FY2025, its largest causes are Health (75%), Education (15%), Employment (4%).
Who are Heart Rhythm Society Inc's largest grantees?
By total granted over FY2019 to FY2025: The Ohio State University ($150k), New York University ($150k), Johns Hopkins University ($150k).
Does Heart Rhythm Society Inc fund new organizations?
In FY2024, 57% of the organizations it funded were first-time grantees.
Where is Heart Rhythm Society Inc based?
Heart Rhythm Society Inc is based in DC.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 26 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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