ADDITIONAL VENTURES FOUNDATION

Supporting OrganizationIRS data 2022–2024

PALO ALTO, CAEIN 814429034 Website

Annual Giving

$17.2M+4% YoY

Grants

Median Grant

$220K

Organizations Funded

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Foundation Overview

Mission

Additional Ventures vision for the future is single ventricle solved. Our mission is to solve the complex challenge of single ventricle heart disease through purpose-driven research leveraging evidence-based approaches and deep subject matter expertise.

Focus Areas

single ventricle researchcongenital heart diseasepediatric cardiologypediatric ventricular assist devicesfontan procedure devicestranslational medical researchmedical devices and tools developmentclinical research

Grant Types

research grantsinnovation awardscareer development awardsexpansion awardstools and technology grantscollaborative research funding

Funded Initiatives

Single Ventricle Research Fund (SVRF) providing up to $600,000 over three years; AHA/AV Collaborative Sciences Awards totaling over $13 million; Recent 2025 awards include sixteen research teams through SVRF.

How to Apply

LOI required for proposals not represented in Research Roadmap. Applications submitted through Additional Ventures online portal. Contact grants@additionalventures.org for guidance. Proposed projects must be led by principal investigators with doctoral degrees.

Does Not Fund

Eligibility limited to principal investigators with doctoral degrees affiliated with domestic nonprofit academic or research institutions. Focus must align with single ventricle heart disease research.

Based on publicly available information from the foundation's 990 filings and website.

Giving History

2024+4%

$17.2M

Grants

Median

$220K

States

2023+39%

$16.6M

Grants

Median

$220K

States

2022

$11.9M

Grants

Median

$219K

States

Grant Size Distribution

$220K

Typical Grant (Median)

$3K

Smallest

$208K

25th Pctile

$226K

75th Pctile

$1.2M

Largest

Excludes grants ≤ $5K. Half fall between $208K and $226K.

Largest Recent Grants

$1.2M

2024

THE J DAVID GLADSTONE INSTITUTES

CA · INNOVATION AWARD

$1.1M

2024

RENATA MEDICAL INC

CA · TRANSCATHETER FONTAN SHUNT DEVELOPMENT

$934K

2024

BOSTON CHILDREN'S HOSPITAL

MA · FORCE FUND

$595K

2024

NATIONWIDE CHILDREN'S HOSPITAL INC

OH · CURES COLLABORATIVE

$493K

2024

CARNEGIE MELLON UNIVERSITY

PA · CURES COLLABORATIVE

Geographic Focus

$5.2M15 grants

$1.5M4 grants

$1.5M6 grants

$1.5M5 grants

$1.1M5 grants

Top states by total grant dollars. Based on IRS filing data.

Financial Overview

YearTotal AssetsGrants Paid

2024

$220.3M

$17.2M(7.8%)

2023

$206.1M

$16.6M(8.0%)

2022

$180.9M

$11.9M(6.6%)

Grants paid shown as percentage of total assets

Network Intelligence

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Data sourced from IRS 990 and 990-PF filings and publicly available foundation websites. Grant data, financial figures, and organizational details reflect historical filings and may not represent current operations or funding priorities. Verify directly with the foundation before applying. See an issue? Let us know.