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Nonprofit · EIN 52-1306451

MILLENNIUM INSTITUTE

Tax-exempt · WASHINGTON, DC 20001

Financials

$1.1M$1M2022$1.1M$1.1M2023$1.2M$985K2024
Revenue Expenses · by fiscal year end
Financials of MILLENNIUM INSTITUTE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
September 30, 2025990$1,239,282$984,925$254,357$513,546$509,437$4,109
September 30, 2024990$1,083,006$1,076,558$6,448$208,674$1,150,930-$942,256
September 30, 2023990$1,103,411$1,039,775$63,636$446,891$1,395,595-$948,704
Financial details: 990 for the year ended September 30, 2025

Revenue

Contributions, gifts and grants
$8,697
Program service revenue
$1,178,538
Investment income
$2
Net income from sales of inventory
-$145
Other revenue
$52,045

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$221,204
Other salaries and wages
$46,026
Salaries, compensation and benefits (total)
$347,820
Professional fundraising fees
$0
Legal fees
$238
Accounting fees
$40,377
Occupancy
$24,589
Travel
$52,888
Depreciation
$1,594
Program services (functional)
$623,169
Management and general (functional)
$278,883
Fundraising (functional)
$82,873

Balance sheet and other

Total assets, start of year
$208,674
Total assets, end of year
$513,546
Total liabilities, end of year
$509,437
Net assets, end of year
$4,109
Land, buildings and equipment
$680
Net assets without donor restrictions
$4,109
Gross receipts
$1,240,064
Employees
3
Volunteers
5
Year formed
1983
State of legal domicile
DC

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 September 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
ADEDOYIN ONASANYACHIEF ADMIN OFFICER
Officer
40$95,671
MATTEO PEDERCINIEX-OFFICIO
Officer
40$40,568
JOHN HARDYTREASURER
Trustee or director, Officer
1$0
HANS HERRENCHAIR
Trustee or director, Officer
4$0
BIRGIT KOPAINSKYVICE CHAIR
Trustee or director, Officer
1$0
BETTINA CORNWELLBOARD MEMBER
Trustee or director
1$0
SAMMY MULANGABOARD MEMBER
Trustee or director
1$0
990 for the year ended September 30, 2024: 7 people
NameTitleHours / weekCompensation
MATTEO PEDERCINIEX-OFFICIO
Trustee or director, Officer
40$135,520
ADEDOYIN ONASANYACHIEF ADMIN OFFICER
Officer
40$113,065
JOHN HARDYTREASURER
Trustee or director, Officer
1$0
HANS HERRENCHAIR
Trustee or director, Officer
4$0
BIRGIT KOPAINSKYVICE CHAIR
Trustee or director, Officer
1$0
BETTINA CORNWELLBOARD MEMBER
Trustee or director
1$0
SAMMY MULANGABOARD MEMBER
Trustee or director
1$0
990 for the year ended September 30, 2023: 8 people
NameTitleHours / weekCompensation
MATTEO PEDERCINIPRESIDENT
Trustee or director, Officer
40$163,781
STEVEN P ARQUITTSENIOR RESEARCH ANALYST AND ASIA REGIONAL LEAD
Key employee
40$161,719
ADEDOYIN ONASANYAPROJECTS COORDINATOR
Key employee
40$157,039
JOHN HARDYTREASURER
Trustee or director, Officer
0$76,100
HANS HERRENCHAIRMAN
Trustee or director, Officer
4$0
BETTINA CORNWELLBOARD MEMBER
Trustee or director
1$0
BIRGIT KOPAINSKYBOARD MEMBER
Trustee or director
1$0
SAMMY MULANGABOARD MEMBER
Trustee or director
1$0

Address and contacts

Address (IRS master file)
20 F ST NW STE 700, WASHINGTON, DC 20001-6705
Principal officer (990 for 2024)
JOHN HARDY, 20 F STREET NW SUITE 700, WASHINGTON, DC 20001
Signed the 990
JOHN HARDY, TREASURER
Phone
(202) 507-6105
Return prepared by
EASY OFFICE DBA JITASA

Mission

SUPPORT GOVERNMENTS AND ORGANIZATIONS IN DESIGNING STRATEGIES THAT LEAD TO MEASURABLE PROGRESS IN WELLBEING AND SUSTAINABILITY TRANSITIONS.

990 for the year ended September 30, 2025

Program accomplishments

  • STRATEGIC PLANNING AND CONSULTING: THE INSTITUTE HELPS ITS PARTNERS TO CONCEPTUALIZE KEY SUSTAINABILITY CHALLENGES, CONDUCTS ANALYSES, FACILITATES MULTI-STAKEHOLDER PROCESSES, AND DEVELOPS TECHNICAL CAPACITY TO ADDRESS COMPLEX DEVELOPMENT CHALLENGES.
    Expenses $412,674 · revenue $916,420
  • GENERAL PROGRAM: THE INSTITUTE PROVIDES TECHNICAL ASSISTANCE AND TRAINING TO HELP NON-GOVERNMENTAL INSTITUTIONS PARTICIPATE IN DESIGNING AND IMPLEMENTING LONG-TERM NATIONAL DEVELOPMENT STRATEGIES.
    Expenses $104,748
  • MODEL RESEARCH AND DEVELOPMENT: THE INSTITUTE CONDUCTS SCIENTIFIC RESEARCH AND TECHNICAL DEVELOPMENT TO BUILD AND REFINE ITS INTEGRATED SUSTAINABLE DEVELOPMENT MODELING FRAMEWORK.
    Expenses $53,409
  • OTHER PROGRAMS
    Expenses $52,338 · revenue $262,118

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 September, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025September 30, 2026February 16, 2027Not due yet
2024September 30, 2025February 17, 2026990 on file
2023September 30, 2024February 18, 2025990 on file

IRS record

EIN
52-1306451
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
1983
Accounting year ends
September
Files
Form 990 or 990-EZ
Assets (IRS master file)
$513,546
Income (IRS master file)
$1,240,064

Filing history

FormYear endedRevenueExpensesAssetsReturn
990September 2025$1,239,282$984,925$513,546XML
990September 2024$1,083,006$1,076,558$208,674XML
990September 2023$1,103,411$1,039,775$446,891XML
990September 2022$1,288,480$1,116,716$460,913IRS
990September 2021–––IRS
990September 2020–––IRS
990September 2019–––IRS
990September 2018–––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 52-1306451).

Questions about MILLENNIUM INSTITUTE

What is the EIN of MILLENNIUM INSTITUTE?
The employer identification number (EIN) of MILLENNIUM INSTITUTE is 52-1306451.
Is MILLENNIUM INSTITUTE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
Are donations to MILLENNIUM INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MILLENNIUM INSTITUTE 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 MILLENNIUM INSTITUTE due?
The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MILLENNIUM INSTITUTE last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended September 2025.
Who is the principal officer of MILLENNIUM INSTITUTE?
The 990 for the year ended September 30, 2025 names JOHN HARDY.
Who are the officers and directors of MILLENNIUM INSTITUTE?
The 990 for the year ended September 30, 2025 lists 7 people; 2 received compensation from the organization, the highest $95,671 (ADEDOYIN ONASANYA, CHIEF ADMIN OFFICER).
How much revenue does MILLENNIUM INSTITUTE have?
On its 990 for the year ended September 30, 2025 it reported revenue of $1,239,282, expenses of $984,925 and total assets of $513,546 at year end.

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