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Nonprofit · EIN 99-3274605

EFFECTIVE PEACEBUILDING INITIATIVE

Tax-exempt · EXETER, NH 03833

Financials

$201K$131K2024$558K$559K2025
Revenue Expenses · by fiscal year end
Financials of EFFECTIVE PEACEBUILDING INITIATIVE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$558,000$558,844-$844$68,167-$399$68,566
December 31, 2024990$200,600$131,190$69,410$69,410$0$69,410
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$558,000
Program service revenue
$0
Investment income
$0
Other revenue
$0

Expenses

Grants and similar amounts paid
$135,000
Compensation of officers, directors and key employees
$120,000
Salaries, compensation and benefits (total)
$129,089
Professional fundraising fees
$0
Accounting fees
$925
Travel
$7,599
Program services (functional)
$418,972
Management and general (functional)
$133,418
Fundraising (functional)
$6,454

Balance sheet and other

Total assets, start of year
$69,410
Total assets, end of year
$68,167
Total liabilities, end of year
-$399
Net assets, end of year
$68,566
Net assets without donor restrictions
$68,566
Gross receipts
$558,000
Employees
1
Year formed
2024
State of legal domicile
NH

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
Ahn LeeExecutive Director
Officer
40$120,000
Milt LauensteinPresident
Trustee or director
20$0
Benjamin ValentinoBoard Chair
Trustee or director
10$0
Clionadh RaleighMember
Trustee or director
5$0
Henrik UrdalMember
Trustee or director
5$0
Peter Lauenstein-DenjongpaTreasurer
Trustee or director
5$0
Annie BirdMember
Trustee or director
5$0
990 for the year ended December 31, 2024: 7 people
NameTitleHours / weekCompensation
Ahn LeeExecutive Director
Officer
40$25,000
Milt LauensteinPresident
Trustee or director
20$0
Benjamin ValentinoBoard Chair
Trustee or director
10$0
Clionadh RaleighMember
Trustee or director
5$0
Henrik UrdalMember
Trustee or director
5$0
Peter Lauenstein-DenjongpaTreasurer
Trustee or director
5$0
Annie BirdMember
Trustee or director
5$0

Address and contacts

Address (IRS master file)
4 FIELDSTONE CT, EXETER, NH 03833-5322
In care of
% AHN LEE
Principal officer (990 for 2025)
Ahn Lee, 4261 East Orange Road, West Topsham, VT 05086
Signed the 990
AHN LEE, Executive Director
Phone
(857) 919-4609
Return prepared by
Acully Incorporated

Mission

Effective Peace Initiatives mission is to support research to develop evidence of what is or is not effective in reducing the human and economic costs of various kinds of warfare most cost-effectively, making the evidence available to peacemakers, and encouraging them to use it.

990 for the year ended December 31, 2025

Program accomplishments

  • Supporting Critical Partners - EPI enhances the capacity of key organizations to implement evidence-based approaches and measure their impact. This includes developing monitoring, evaluation, and learning (MEL) frameworks for peacebuilding organizations, creating practical toolkits and resources for practitioners, providing technical support to organizations implementing evidence-based interventions, and building networks that connect researchers, practitioners, and funders.
    Expenses $177,689 · grants $135,000
  • Gathering Evidence Program - EPIs Gathering Evidence Program funds and conducts rigorous research to identify what works in conflict prevention and resolution across different contexts. This includes a comprehensive collection of successful peace interventions and their outcomes (the Peace Activities Dataset) and Conflict-Intervention Mapping to analyze which interventions are most effective for specific types of conflicts. It also includes partner-led research by supporting organzations like ACLED to produce essential data on conflict and peacebuilding.
    Expenses $135,172
  • Making the Case Program: Effective Peacebuilding Initiative advocates for the adoption of evidence-based interventions among decision-makers and funders by bringing together and promoting the voices of influential stake-holders to share findings and best practices, publishing accessible reports and policy briefs, recognizing and amplifying successful peace initiatives, and building a movement for evidence-based peacebuilding.
    Expenses $106,111

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, 2024Check at the IRS

IRS record

EIN
99-3274605
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)
Human services (P99)
Assets (IRS master file)
$68,167
Income (IRS master file)
$558,000

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$558,000$558,844$68,167IRS
990December 2024$200,600$131,190$69,410IRS

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 99-3274605).

Questions about EFFECTIVE PEACEBUILDING INITIATIVE

What is the EIN of EFFECTIVE PEACEBUILDING INITIATIVE?
The employer identification number (EIN) of EFFECTIVE PEACEBUILDING INITIATIVE is 99-3274605.
Is EFFECTIVE PEACEBUILDING INITIATIVE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2024.
Are donations to EFFECTIVE PEACEBUILDING INITIATIVE tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does EFFECTIVE PEACEBUILDING INITIATIVE 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 EFFECTIVE PEACEBUILDING INITIATIVE 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 EFFECTIVE PEACEBUILDING INITIATIVE 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 EFFECTIVE PEACEBUILDING INITIATIVE?
The 990 for the year ended December 31, 2025 names Ahn Lee.
Who are the officers and directors of EFFECTIVE PEACEBUILDING INITIATIVE?
The 990 for the year ended December 31, 2025 lists 7 people; 1 received compensation from the organization, the highest $120,000 (Ahn Lee, Executive Director).
How much revenue does EFFECTIVE PEACEBUILDING INITIATIVE have?
On its 990 for the year ended December 31, 2025 it reported revenue of $558,000, expenses of $558,844 and total assets of $68,167 at year end.

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