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PROSTHETIKA FOUNDATION

EIN 34-2002891 SANTA ROSA, CA

Revenue 2025
$53,644
Expenses 2025
$62,233

Program services were 80.5% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
E50
Classification
1000
Street
4966 CHARMIAN DR

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2025

Mission

HELPING IMPROVE THE LIVES OF PHYSICALLY DISABLED PEOPLE WHO REQUIRE ARTIFICIAL LIMBS AND ORTHOPEDIC BRACES.

  • PROVIDE PROSTHETIC ASSISTANCE, CONDUCT TRAINING WORKSHOPS FOR PROSTHETICS, AND FIT ARTIFICIAL LIMBS. HISTORICALLY THESE SERVICES HAVE BEEN PROVIDED IN BOLIVIA, CUBA, ECUADOR, GUATEMALA, HAITI, MONCLOVA, TANZANIA, AND UKRAINE WITH MAJOR PROJECTS IN GUYANA AND COLOMBIA. FOR 2025, THESE SERVICES TOOK PLACE IN UKRAINE, GUYANA, AND QUERETARO.

    Expenses $50,116

As filed on the 2025 return.

Officers and directors · 2025

As listed in Part VII of the 2025 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • JONATHAN BATZDORFF

    PRESIDENT

    Total calculated
    $0
    Hours/week
    12

  • CHAD SOUNTRU

    TREASURER

    Total calculated
    $0
    Hours/week
    3

  • JOLENE SEARLE

    SECRETARY

    Total calculated
    $0
    Hours/week
    2

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2025
    Revenue
    $53,644
    Expenses
    $62,233
    Contributions
    $38,096
    Grants paid
    $0
  • 2024
    Revenue
    $121,905
    Expenses
    $110,490
    Contributions
    $111,911
    Grants paid
    $0
  • 2023
    Revenue
    $104,369
    Expenses
    $37,168
    Contributions
    $98,108
    Grants paid
    $0
  • 2022
    Revenue
    $55,547
    Expenses
    $31,325
    Contributions
    $44,086
    Grants paid
    not reported

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990-EZ

    Revenue
    $62,572
    Expenses
    $20,319
    Assets (EOY)
    $431,201

  • 2020 · 990-EZ

    Revenue
    $1,124
    Expenses
    $14,602
    Assets (EOY)
    $346,996

  • 2019 · 990-EZ

    Revenue
    $61,915
    Expenses
    $28,059
    Assets (EOY)
    $283,533

  • 2018 · 990-EZ

    Revenue
    $73,092
    Expenses
    $34,637
    Assets (EOY)
    $250,513

  • 2017 · 990-EZ

    Revenue
    $31,559
    Expenses
    $19,645
    Assets (EOY)
    $211,222

  • 2016 · 990-EZ

    Revenue
    $44,786
    Expenses
    $30,412
    Assets (EOY)
    $199,308

  • 2015 · 990-EZ

    Revenue
    $62,693
    Expenses
    $30,729
    Assets (EOY)
    $184,934

  • 2014 · 990-EZ

    Revenue
    $80,737
    Expenses
    $35,194
    Assets (EOY)
    $153,217

  • 2013 · 990-EZ

    Revenue
    $41,131
    Expenses
    $31,853
    Assets (EOY)
    $107,427

  • 2012 · 990-EZ

    Revenue
    $19,954
    Expenses
    $18,858
    Assets (EOY)
    $89,888

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 26 October 2026, for every organization at once. Returns through tax year 2025, the newest we have parsed for this organization.