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OKLAHOMA HUMANE SOCIETY

EIN 20-8446621 OKLAHOMA CITY, OK

Browse the largest nonprofits in Oklahoma

Revenue 2024
$19,976,779
Expenses 2024
$4,297,098

Program services were 76.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
D20
Classification
1200
Street
PO BOX 18471

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 · 2024

Mission

THE PRIMARY GOAL OF THE OKLAHOMA HUMANE SOCIETY IS TO END THE NEEDLESS EUTHANASIA OF ADOPTABLE PETS IN OKLAHOMA. THROUGH ITS PARTNERSHIP WITH THE OKLAHOMA CITY ANIMAL SHELTER, THE ORGANIZATION IS ABLE TO TRANSFER DOGS AND CATS AT RISK OF EUTHANASIA INTO ITS ADOPTION AND RELOCATION PROGRAMS. THROUGH ITS SPAY AND NEUTER PROGRAM, THE ORGANIZATION PREVENTS THE BIRTH OF UNWANTED PETS AND HELPS REDUCE INTAKE AT THE OKLAHOMA CITY ANIMAL SHELTER. HUMANE EDUCATION PROGRAMS PROMOTE COMPASSION TOWARD ANIMALS AND TEACH RESPONSIBLE PET OWNERSHIP. THE ORGANIZATION HAS A STATEWIDE INITIATIVE THAT IS TARGETING RURAL COMMUNITIES TO REDUCE PET OVERPOPULATION THROUGH SPAY / NEUTER, VACCINES AND EDUCATION.

Activities or mission (Part I)

THE OKLAHOMA HUMANE SOCIETY EXISTS TO ENRICH THE COMMUNITIES IT SERVES BY PROMOTING THE WELL-BEING OF ANIMALS.

  • SPAY AND NEUTER AND IN-HOUSE CLINICS: IN AN EFFORT TO REDUCE THE BIRTH OF UNWANTED PETS AND INTAKE AT THE OKLAHOMA CITY ANIMAL SHELTER, THE OKLAHOMA HUMANE SOCIETY HAS A HIGH VOLUME, LOW COST SPAY AND NEUTER CLINIC THAT PERFORMS SURGERIES ON PETS PLACED THROUGH THE ADOPTION PROGRAM, PUBLICLY OWNED PETS AND FREE ROAMING CATS. OUR IN-HOUSE CLINIC SERVES THE MEDICAL NEEDS OF THE IN-PROGRAM FOSTER ANIMALS, ANIMALS IN OTHER LOCAL RESCUE PROGRAMS, AND HOUSES THE NEONATE CLINIC. THE NEONATE PROGRAM SERVES KITTENS AND PUPPIES UNDER THE AGE OF 6 WEEKS OLD; THE MOST VULNERABLE POPULATION IN OUR CITY SHELTERS AND COMMUNITIES. OUR MISSION IS TO HELP EASE THE BURDEN OF CARE ON OUR SHELTER PARTNERS AND NEIGHBORS BY PLACING THESE ANIMALS INTO SPECIALLY TRAINED FOSTER HOMES WHERE THEY CAN GROW AND DEVELOP IN A STRESS-FREE ENVIRONMENT. OVER THE PAST 4 YEARS, OK HUMANE HAS HELPED OVER 4,000 ANIMALS THROUGH OUR NEONATE PROGRAM.

    Expenses $1,947,839 · Revenue $1,267,136

  • INTAKE PROGRAM: THE INTAKE PROGRAM IS RESPONSIBLE FOR PROCESSING THE INITIAL INTAKE OF ALL DOGS AND CATS ENTERING THE ADOPTION AND RELOCATION PROGRAMS. THIS INCLUDES MEDICAL AND BEHAVIORAL EVALUATION AND ANY REQUIRED MEDICAL PROCESSES SUCH AS VACCINATION, HEARTWORM TESTING, FLEA / TICK TREATMENT AND MICROCHIPPING. THE FOSTER PROGRAM PROVIDES A TEMPORARY HOME FOR OUR INTAKE ANIMALS UNTIL THEYRE READY FOR ADOPTION. THESE PETS COME IN ALL SHAPES AND SIZES! SOME MAY BE AWAITING SPAY OR NEUTER SURGERY, NEED ADDITIONAL VACCINES OR MEDICAL TREATMENT, OR MAY BE READY FOR ADOPTION AND SIMPLY NEED A HOME TO TAKE THEM TO AND FROM THE ADOPTION CENTER. ON AVERAGE, OK HUMANE HAS OVER 3,000 ANIMALS IN OUR FOSTER PROGRAM EACH YEAR.

    Expenses $456,824 · Revenue $7,095

  • ADOPTION: TO SAVE ANIMALS AT RISK OF EUTHANASIA, OKLAHOMA HUMANE SOCIETY TRANSFERS THEM INTO ITS ADOPTION AND RELOCATION PROGRAMS.

    Expenses $442,128 · Revenue $368,343

  • STATEWIDE / OUTREACH: OK HUMANE SOCIETYS STATEWIDE INITIATIVE BEGAN IN 2019, WITH THE GOAL OF CHANGING THE LANDSCAPE OF ANIMAL WELFARE AROUND THE STATE. USING A MULTI-DIMENSIONAL APPROACH, WE COLLABORATE WITH ANIMAL SHELTERS AND RESCUE GROUPS, BRINGING RESOURCES TO UNDERSERVED COMMUNITIES ACROSS OKLAHOMA. EACH YEAR THIS PROGRAM PROVIDES SERVICES TO OVER 4,000 ANIMALS ACROSS OUR STATE.

    Expenses $371,370 · Revenue $382,053

  • ANIMAL ADVOCACY PROGRAM: THE OKLAHOMA HUMANE SOCIETY COLLABORATES WITH PALOMAR TO PROVIDE AN ANIMAL ADVOCATE AT THE PALOMAR FACILITY TO TAKE IMMEDIATE CARE OF THE ANIMALS WHILE THE HOST AGENCIES TAKE CARE OF THE FAMILIES. CARE WILL INCLUDE VACCINATIONS, SPAY / NEUTER, TEMPORARY KENNELING, AND A FOSTER HOME UNTIL THE FAMILY CAN BE REUNITED WITH THEIR PET(S). THIS MODEL IS UNIQUE AND WILL BE PRESENTED AS A BEST PRACTICE TO SURROUNDING STATES.

    Expenses $82,345

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Mark Eby

    CEO

    Total calculated
    $125,893
    From this org
    $121,625
    From related orgs
    $0
    Other
    $4,268
    Hours/week
    45
  • Amanda Elmenhorst

    MEDICAL DIRECTOR

    Total calculated
    $117,016
    From this org
    $112,927
    From related orgs
    $0
    Other
    $4,089
    Hours/week
    40
  • Emily Keith DVM

    VETERINARIAN

    Total calculated
    $102,460
    From this org
    $102,460
    From related orgs
    $0
    Other
    $0
    Hours/week
    40
  • Alba Weaver

    CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Christine Hilton

    VICE-CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Caitlin Mazaheri

    TREASURER

    Total calculated
    $0
    Hours/week
    1
  • Hilarie Blaney

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Carrie Blumert

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Martha Burger

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Matthew Chesnut

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Andrea Gossard

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Julie Hall

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Frank Hill

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Dudley Hyde

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Lacie Lowry

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Shelley Maxted

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Daniel Mercer

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Kathleen Moore

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Lauren Ottaway

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Shannon Presti

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Avis Scaramucci

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Megan Tilly

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1
  • Hailey Benton-Thomas

    DIRECTOR

    Total calculated
    $0
    Hours/week
    1

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

  • 2024
    Revenue
    $19,976,779
    Expenses
    $4,297,098
    Contributions
    $17,907,416
    Grants paid
    $0
  • 2023
    Revenue
    $3,728,304
    Expenses
    $5,290,543
    Contributions
    $1,958,116
    Grants paid
    $1,308,729
  • 2022
    Revenue
    $3,088,822
    Expenses
    $3,853,461
    Contributions
    $1,496,035
    Grants paid
    $110,000

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

    Revenue
    $4,369,716
    Expenses
    $3,911,442
    Assets (EOY)
    $6,448,209
  • 2021 · 990

    Revenue
    $5,110,677
    Expenses
    $3,925,351
    Assets (EOY)
    $6,516,972
  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2020 · 990

    Revenue
    $5,113,161
    Expenses
    $3,144,275
    Assets (EOY)
    $5,399,617
  • 2020 · 990

    Revenue
    $5,548,666
    Expenses
    $3,144,273
    Assets (EOY)
    $5,830,935
  • 2020 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2019 · 990

    Revenue
    $2,734,810
    Expenses
    $3,361,882
    Assets (EOY)
    $3,439,571
  • 2018 · 990

    Revenue
    $3,768,417
    Expenses
    $3,305,235
    Assets (EOY)
    $4,080,591
  • 2017 · 990

    Revenue
    $3,914,528
    Expenses
    $3,137,627
    Assets (EOY)
    $3,626,627
  • 2016 · 990

    Revenue
    $2,399,517
    Expenses
    $2,807,104
    Assets (EOY)
    $2,764,689

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

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Disregarded entities on its 2024 return

  • 23 AND 24 LLC

    RE HOLDING · OK · assets $77,000

  • RIVERSIDE BLOCK 3 LLC

    RE HOLDING · OK · assets $105,000

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 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.