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US nonprofit · EIN 331145705 · Eighty Four, PAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 331145705) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990EZ for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Principal officer IRS Form 990-N (e-Postcard) - principal officer named for tax year 2022.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

International Society for Micropiles

Donations deductible
Revenue
$177k
year to 31 December 2025
Expenses
$167k
year to 31 December 2025
Total assets
$99k
year to 31 December 2025
Net assets
$99k
assets less liabilities
Directors and trustees
8
1.4 years on average
Left since last filing
0
no seats appear to have opened
Activity
U40
Science and technology research
Filings on record
1
latest 2025
Exemption reinstated on 15 May 2021. The IRS had automatically revoked it on 15 May 2021 (after three years without a return). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.
How am I connected?

International Society for Micropiles' network

8 peoplei8 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (8). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

8 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record.
NameRole as filedSinceOn the board
Allan Herse ChairChair2025
1 yr
Allen CaddenBoard Advisor2025
1 yr
Andreas BrandnerBoard Advisor2025
1 yr
Bjorn IschebeckBoard Advisor2025
1 yr
Freddy LopezBoard Advisor2025
1 yr
Mary Ellen BrucePresident/Treasurer2025
1 yr
Nadir AnsariBoard Advisor2025
1 yr
Natalia MacaVice Chair2025
1 yr
Under 5 years5 to 6 years6 years or more

Pay and hours

year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Mary Ellen BrucePresident/Treasurer0$0
Allan HerseChair0$0
Natalia MacaVice Chair0$0
Dan MacleanImmediate Past Chair0$0
Donald BruceHonorary Chair0$0
Nadir AnsariBoard Advisor0$0
Andreas BrandnerBoard Advisor0$0
Allen CaddenBoard Advisor0$0
Bjorn IschebeckBoard Advisor0$0
Freddy LopezBoard Advisor0$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
International Society for Micropiles
EIN
331145705
Address
484 Ross Rd, Eighty Four, PA, 15330-2804
State
Pennsylvania
Activity (NTEE)
U40 Science and technology research
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Science & Technology
Size band
3 (IRS master file code)
IRS ruling date
1 July 2022
Status
Code 01 (unconditional exemption)
Form 990 filings on record
1, latest 2025
IRS Publication 78
PC (contributions deductible)
Principal officer
Mary Ellen Bruce (Form 990-N, tax year 2022)

Most connected

Longest observed on the filings

≥1years on the filingsAllan Herse
≥1years on the filingsAllen Cadden
≥1years on the filingsAndreas Brandner
≥1years on the filingsBjorn Ischebeck

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$99k
Net assets or fund balances
$99k

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
International Society for Micropiles likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Pennsylvania Department of State, business entities (data.pa.gov xvd7-5r2c). Licence: public domain. Data last fetched 18 October 2026.
State
Pennsylvania
Entity type
Domestic Nonprofit Corporation
Status
Active
Formed
18 October 2006
Registered agent
Not stated

Officers (2)

  • Donald A Bruce Honorary Chair
  • Mary Ellen Large Governor

City and state of officers are not held in this extract.