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Nonprofit · EIN 99-2133246

HOLOBIONT MEDICAL RESEARCH FOUNDATION

Tax-exempt · SAN FRANCISCO, CA 94107

Financials

$335K$326K2024
Revenue Expenses · by fiscal year end
Financials of HOLOBIONT MEDICAL RESEARCH FOUNDATION by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2024990$335,001$325,788$9,213$9,213$0$9,213
Financial details: 990 for the year ended December 31, 2024

Revenue

Contributions, gifts and grants
$335,000
Program service revenue
$0
Investment income
$1
Other revenue
$0

Expenses

Grants and similar amounts paid
$301,770
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Travel
$1,045
Program services (functional)
$301,770
Management and general (functional)
$8,018
Fundraising (functional)
$16,000

Balance sheet and other

Total assets, start of year
$0
Total assets, end of year
$9,213
Total liabilities, end of year
$0
Net assets, end of year
$9,213
Net assets without donor restrictions
$9,213
Gross receipts
$335,001
Employees
0
Year formed
2024
State of legal domicile
CA

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, 2024, highest compensation first.

NameTitleHours / weekCompensation
LARRY WEISSPresident
Trustee or director
2$0
JULIA DURACKVice President
Trustee or director
1$0
CARLOS BUSTAMANTESecretary
Trustee or director
1$0
RITA COLWELLTreasurer
Trustee or director
1$0
HOWARD MAIBACHDirector
Trustee or director
1$0

Address and contacts

Address (IRS master file)
2325 3RD ST STE 223, SAN FRANCISCO, CA 94107-3198
In care of
% LARRY WEISS
Principal officer (990 for 2024)
LARRY WEISS, 953 INDIANA STREET, SAN FRANCISCO, CA 94107
Signed the 990
LARRY WEISS, President
Phone
(415) 223-3901
Return prepared by
BREGANTE COMPANY LLP CPAS

California records

California keeps its own records of charities and corporations. Search them by EIN 99-2133246 or by the name HOLOBIONT MEDICAL RESEARCH FOUNDATION.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

THE HOLOBIONT MEDICAL RESEARCH FOUNDATION IS DEDICATED TO ADVANCING SCIENTIFIC KNOWLEDGE AND IMPROVING HUMAN HEALTH THROUGH RESEARCH AND INNOVATION. OUR MISSION IS TO UNRAVEL THE INTRICATE CONNECTIONS BETWEEN THE HUMAN MICROBIOME, EXPOSOME AND PHYSIOLOGICAL PROCESSES WITHIN THE HUMAN BODY THAT DEFINE HEALTH AND WELL-BEING.

990 for the year ended December 31, 2024

Program accomplishments

  • Grant funding supports early stage translational research in skin microbiome science. Through these grants, the organizations conducted laboratory and analytical work to characterize microbial-derived metabolites, postbiotic compounds and host inflammatory responses. The funding supported development of experimental models, baseline assays and data collection aimed at improving understanding of human-microbe interactions relevant to dermatologic and immunologic health. The work establishes foundational evidence needed for future clinical investigation and public-benefit applications. Grant funds also enabled the design and preliminary validation of protocols, measurement tools, and digital processes to support decentralized, community-engaged clinical research related to skin and muscosal health. Activities included drafting research protocols, refining remote data-collection workflows, establishing microbiome samplign and handling methods, and preparing study materials suitable for future IRB submission.
    Expenses $301,770 · grants $301,770

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, 2026Not on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024Check at the IRS

IRS record

EIN
99-2133246
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2024
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Health care (E12)
Assets (IRS master file)
$9,213
Income (IRS master file)
$335,001

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2024$335,001$325,788$9,213XML

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 99-2133246).

Questions about HOLOBIONT MEDICAL RESEARCH FOUNDATION

What is the EIN of HOLOBIONT MEDICAL RESEARCH FOUNDATION?
The employer identification number (EIN) of HOLOBIONT MEDICAL RESEARCH FOUNDATION is 99-2133246.
Is HOLOBIONT MEDICAL RESEARCH FOUNDATION tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2024.
Are donations to HOLOBIONT MEDICAL RESEARCH FOUNDATION tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does HOLOBIONT MEDICAL RESEARCH FOUNDATION 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 HOLOBIONT MEDICAL RESEARCH FOUNDATION due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did HOLOBIONT MEDICAL RESEARCH FOUNDATION last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended December 2024.
Who is the principal officer of HOLOBIONT MEDICAL RESEARCH FOUNDATION?
The 990 for the year ended December 31, 2024 names LARRY WEISS.
Who are the officers and directors of HOLOBIONT MEDICAL RESEARCH FOUNDATION?
The 990 for the year ended December 31, 2024 lists 5 people; 0 received compensation from the organization.
How much revenue does HOLOBIONT MEDICAL RESEARCH FOUNDATION have?
On its 990 for the year ended December 31, 2024 it reported revenue of $335,001, expenses of $325,788 and total assets of $9,213 at year end.

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