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Nonprofit · EIN 52-2451724

INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES

Tax-exempt · WILMINGTON, DE 19805

Financials

$158K$142K2023$23K$55K2024$114K$124K2025
Revenue Expenses · by fiscal year end
Financials of INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$113,658$124,312-$10,654$334,154$0$334,154
December 31, 2024990$23,147$55,173-$32,026$344,808$0$344,808
December 31, 2023990$158,193$142,215$15,978$376,834$0$376,834
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$8,000
Program service revenue
$105,626
Investment income
$32
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Accounting fees
$4,627
Program services (functional)
$119,685
Management and general (functional)
$4,627

Balance sheet and other

Total assets, start of year
$344,808
Total assets, end of year
$334,154
Total liabilities, end of year
$0
Net assets, end of year
$334,154
Gross unrelated business income
$32
Gross receipts
$113,658
Employees
0
Volunteers
0
Year formed
2004
State of legal domicile
NJ

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

NameTitleHours / weekCompensation
HELENA AZEVEDO PHDTRUSTEE
Institutional trustee
0$0
ED HARRIS PHDTEMPORARY OFFICER
Institutional trustee
0$0
DEVA CHAN PHDTRUSTEE
Institutional trustee
0$0
JENNIFER CURTIS PHDTRUSTEE
Institutional trustee
0$0
ADAM HALL PHDTRUSTEE
Institutional trustee
0$0
JESSICA KWOK PHDTRUSTEE
Institutional trustee
0$0
JONATHAN SLEEMAN PHDTRUSTEE
Institutional trustee
0$0
MELANIE SIMPSON PHDPRESIDENT
Officer
0$0
STAVROS GARANTZIOTIS PHDTREASURER
Officer
0$0
VIVIAN J COULSON-THOMAS PHDSECRETARY
Officer
0$0
RALF RICHTER PHDDIV.VP:BASIC SCIENCES
Officer
0$0
SOMA MERAN PHDDIV.VP:CLINICAL SCIENCES
Officer
0$0
NADINE NAGY PHDDIV. VP:APPLIED SCIENCES
Officer
0$0
990 for the year ended December 31, 2024: 13 people
NameTitleHours / weekCompensation
VIVIE COULSON-THOMAS PHDTRUSTEE
Institutional trustee
0$0
ED HARRIS PHDTEMPORARY OFFICER
Institutional trustee
0$0
JENNIFER CURTIS PHDTRUSTEE
Institutional trustee
0$0
MARIA GRANDOCH PHDTRUSTEE
Institutional trustee
0$0
AARON PETREY PHDTRUSTEE
Institutional trustee
0$0
HIDETO WATANABE PHDTRUSTEE
Institutional trustee
0$0
BARBARA TRIGGS-RAINE PHDTRUSTEE
Institutional trustee
0$0
MELANIE SIMPSON PHDPRESIDENT
Officer
0$0
STAVROS GARANTZIOTIS PHDTREASURER
Officer
0$0
TIMOTHY BOWEN PHDSECRETARY
Officer
0$0
RALF RICHTER PHDDIV.VP:BASIC SCIENCES
Officer
0$0
SOMA MERAN PHDDIV.VP:CLINICAL SCIENCES
Officer
0$0
GLENN PRESTWICH PHDDIV. VP:APPLIED SCIENCES
Officer
0$0
990 for the year ended December 31, 2023: 13 people
NameTitleHours / weekCompensation
VIVIE COULSON-THOMAS PHDTRUSTEE
Institutional trustee
0$0
ED HARRIS PHDTEMPORARY OFFICER
Institutional trustee
0$0
JENNIFER CURTIS PHDTRUSTEE
Institutional trustee
0$0
MARIA GRANDOCH PHDTRUSTEE
Institutional trustee
0$0
AARON PETREY PHDTRUSTEE
Institutional trustee
0$0
HIDETO WATANABE PHDTRUSTEE
Institutional trustee
0$0
BARBARA TRIGGS-RAINE PHDTRUSTEE
Institutional trustee
0$0
MELANIE SIMPSON PHDPRESIDENT
Officer
0$0
STAVROS GARANTZIOTIS PHDTREASURER
Officer
0$0
TIMOTHY BOWEN PHDSECRETARY
Officer
0$0
RALF RICHTER PHDDIV.VP:BASIC SCIENCES
Officer
0$0
SOMA MERAN PHDDIV.VP:CLINICAL SCIENCES
Officer
0$0
GLENN PRESTWICH PHDDIV. VP:APPLIED SCIENCES
Officer
0$0

Address and contacts

Address (IRS master file)
605 GEDDES ST, WILMINGTON, DE 19805-3718
In care of
% MARY COWMAN
Principal officer (990 for 2025)
STAVROS GARANTZIOTIS MD, NATIONAL INSTITUTE OF ENVIRONMENTAL, RESEARCH TRIANGLE PARK, NC 27612
Signed the 990
STAVROS GARANTZIOTIS MD, TREASURER
Phone
(402) 304-6737
Return prepared by
SPECTOR FOO WEISSMAN LLP

Mission

TO ADVANCE KNOWLEDGE ON THE STRUCTURE, FUNCTION AND THERAPEUTIC APPLICATION OF HYALURONAN & ITS ROLE OF STRUCTURE & FUNCTION OF THE EXTRACELLULAR MATRIX & CELLS & TO SUPPORT SCIENTIFIC RESEARCH ON THE HYALURONAN MOLECULE ENCOMPASSING ALL 3 BRANCHES OF MEDICAL SCIENCES.

990 for the year ended December 31, 2025

Program accomplishments

  • SCIENTIFIC RESEARCH ON HYALURONAN MOLECULE AND TO INITIATE, ORGANIZE AND ADMINISTER MEETINGS FOR SCIENTIFIC COMMUNICATION, CONFERENCES AND LECTURES
    Expenses $119,685 · revenue $105,626

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

File the 2026 990-EZ for INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
52-2451724
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (509(a)(2))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2005
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Medical research (H92)
Assets (IRS master file)
$334,154
Income (IRS master file)
$113,658

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$113,658$124,312$334,154XML
990December 2024$23,147$55,173$344,808XML
990December 2023$158,193$142,215$376,834XML
990December 2022$102,530$15,941$360,856IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-2451724).

Questions about INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES

What is the EIN of INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES?
The employer identification number (EIN) of INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES is 52-2451724.
Is INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2005.
Are donations to INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES due?
The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2025.
Who is the principal officer of INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES?
The 990 for the year ended December 31, 2025 names STAVROS GARANTZIOTIS MD.
Who are the officers and directors of INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES?
The 990 for the year ended December 31, 2025 lists 13 people; 0 received compensation from the organization.
How much revenue does INTERNATIONAL SOCIETY FOR HYALURONAN SCIENCES have?
On its 990 for the year ended December 31, 2025 it reported revenue of $113,658, expenses of $124,312 and total assets of $334,154 at year end.

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