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Form 990-PFTax year 2025EIN 26-2934953

Avantor Sciences Foundation

A private foundation in Radnor, PA. Its return for tax year 2025 lists 1 grant and $520,055 paid in grants.

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Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

7 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $520,055

    Grants listed
    1
    Assets, end of year
    $710,877

  • Tax year 2024

    $1,418,010

    Grants listed
    1
    Assets, end of year
    $1,077,287

  • Tax year 2023

    $1,036,199

    Grants listed
    184
    Assets, end of year
    $1,910,637

  • Tax year 2022

    $1,036,624

    Grants listed
    15
    Assets, end of year
    $2,256,921

  • Tax year 2021

    $1,166,492

    Grants listed
    16
    Assets, end of year
    $3,430,121

  • Tax year 2020

    $559,882

    Grants listed
    8
    Assets, end of year
    $1,508,524

  • Tax year 2019

    $340,691

    Grants listed
    41
    Assets, end of year
    $2,117,863

Grants paid in 2025

1 grant, largest first

As listed on the return.

  1. The Blackbaud Giving FundDaniel Island, SC

    Charitable giving

    $520,055

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Philanthropy and grantmaking1 grant $520,055100% of the total

By State

Grants to organizations with a US address, latest year.

  1. South Carolina1 grant $520,055

Officers, directors and trustees

8 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Eilidh RobertsonPRESIDENT Hours 1Pay $0
  • Valerie ColladoPRESIDENT Hours 4Pay $0
  • Tola OlorunnisolaTREASURER Hours 1Pay $0
  • Allie HosakDIRECTOR Hours 1Pay $0
  • Phil de WinneDIRECTOR Hours 1Pay $0
  • Paul SerrinDIRECTOR Hours 1Pay $0
  • Natalia VitaleDIRECTOR Hours 1Pay $0
  • Sukwon DongDIRECTOR (UNTIL 12/25) Hours 1Pay $0

The return

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