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IRVINE RANCH CONSERVANCY

EIN 45-5412769 IRVINE, CA

Browse the largest nonprofits in California

Revenue 2024
$9,027,560
Expenses 2024
$8,509,575

Program services were 75.1% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
C30
Classification
1000
Street
4727 PORTOLA PKWY

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

TO PROVIDE STEWARDSHIP AND LAND MANAGEMENT SERVICES TO PROPERTY OWNERS AND OTHERS, TO HELP PROPERTY OWNERS PROTECT, PRESERVE AND ENHANCE WILDERNESS AND NATURAL HABITATS ON THEIR PROTECTED LANDS, AND TO OFFER A RANGE OF RECREATIONAL AND EDUCATIONAL PUBLIC PROGRAMS.

Activities or mission (Part I)

TO PROVIDE STEWARDSHIP AND LAND MANAGEMENT SERVICES TO PROPERTY OWNERS AND OTHERS.

  • TO PROVIDE STEWARDSHIP AND LAND MANAGEMENT SERVICES TO PROPERTY OWNERS AND OTHERS, TO HELP PROPERTY OWNERS PROTECT, PRESERVE AND ENHANCE WILDERNESS AND NATURAL HABITATS ON THEIR PROTECTED LANDS, AND TO OFFER A RANGE OF RECREATIONAL AND EDUCATIONAL PUBLIC PROGRAMS.

    Expenses $6,394,125 · Revenue $2,807,090

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.

  • Michael O'Connell

    PRESIDENT & CEO

    Total calculated
    $335,525
    From this org
    $302,759
    From related orgs
    $0
    Other
    $32,766
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $298,235
    Bonus
    $0
    Other
    $4,524
    Deferred
    $11,726
    Nontaxable benefits
    $21,040
    Filer's total
    $335,525
  • Nathan Gregory PhD

    Sr VP, Chief Programs Officer

    Total calculated
    $225,864
    From this org
    $209,114
    From related orgs
    $0
    Other
    $16,750
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $208,274
    Bonus
    $0
    Other
    $840
    Deferred
    $8,642
    Nontaxable benefits
    $8,108
    Filer's total
    $225,864
  • Dave Raetz

    VICE PRESIDENT & CAO

    Total calculated
    $225,097
    From this org
    $192,122
    From related orgs
    $0
    Other
    $32,975
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $191,282
    Bonus
    $0
    Other
    $840
    Deferred
    $8,231
    Nontaxable benefits
    $24,744
    Filer's total
    $225,097
  • Sherry Fuller

    SENIOR DIRECTOR HUMAN RESOURCE

    Total calculated
    $196,912
    From this org
    $168,330
    From related orgs
    $0
    Other
    $28,582
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $167,490
    Bonus
    $0
    Other
    $840
    Deferred
    $6,996
    Nontaxable benefits
    $21,586
    Filer's total
    $196,912
  • Adam Maywhort

    DIRECTOR- PLANNING & INFRASTRU

    Total calculated
    $127,510
    From this org
    $121,700
    From related orgs
    $0
    Other
    $5,810
    Hours/week
    40
  • Geoff Barnard

    Chair

    Total calculated
    $0
    Hours/week
    0.5
  • Ann Muscat PHD

    Vice-Chair

    Total calculated
    $0
    Hours/week
    0.5
  • Nikki Buffa

    Secretary

    Total calculated
    $0
    Hours/week
    0.5
  • David Doran

    Treasurer

    Total calculated
    $0
    Hours/week
    0.5
  • Albert F Bennett PHD

    Past Chair & Asssistant Treasu

    Total calculated
    $0
    Hours/week
    0.5
  • Bill Campell

    Director

    Total calculated
    $0
    Hours/week
    0.5
  • Jane Russo

    Director

    Total calculated
    $0
    Hours/week
    0.5
  • Woody Smeck

    Director

    Total calculated
    $0
    Hours/week
    0.5

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. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $9,027,560
    Expenses
    $8,509,575
    Contributions
    $6,014,902
    Grants paid
    $0
  • 2023
    Revenue
    $8,108,958
    Expenses
    $7,943,609
    Contributions
    $5,626,059
    Grants paid
    $0
  • 2022
    Revenue
    $7,470,694
    Expenses
    $7,156,684
    Contributions
    $6,077,767
    Grants paid
    $0

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
    $6,143,241
    Expenses
    $6,331,357
    Assets (EOY)
    $6,708,951
  • 2020 · 990

    Revenue
    $6,197,394
    Expenses
    $5,746,376
    Assets (EOY)
    $5,172,136
  • 2019 · 990

    Revenue
    $5,483,851
    Expenses
    $5,501,072
    Assets (EOY)
    $4,964,346
  • 2018 · 990

    Revenue
    $5,710,869
    Expenses
    $5,683,028
    Assets (EOY)
    $4,350,212
  • 2017 · 990

    Revenue
    $5,639,927
    Expenses
    $5,514,757
    Assets (EOY)
    $4,337,872
  • 2016 · 990

    Revenue
    $6,149,989
    Expenses
    $5,854,589
    Assets (EOY)
    $4,143,648
  • 2014 · 990

    Revenue
    $5,474,727
    Expenses
    $5,023,065
    Assets (EOY)
    $2,080,954
  • 2013 · 990

    Revenue
    $5,343,475
    Expenses
    $4,585,454
    Assets (EOY)
    $1,373,092
  • 2012 · 990

    Revenue
    not reported
    Expenses
    $3,431,889
    Assets (EOY)
    $638,079

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.

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

  • 2022 TO SUPPORT CONSERVATION AND LAND MANAGEMENT PROGRAMS CONDUCTED BY IRVINE RANCH CONSERVANCY, HELP IMPROVE PARKING LOT, RESTROOM, TRAILHEAD ACCESS, SIGNAGE AND WAYFINDING FOR WATERWORKS TRAIL, AND NATIVE SEED FARM DEMONSTRATION GARDEN.

  • 2024 TO SUPPORT CONSERVATION AND LAND MANAGEMENT PROGRAMS CONDUCTED BY IRVINE RANCH CONSERVANCY, HELP IMPROVE PARKING LOT, RESTROOM, TRAILHEAD ACCESS, SIGNAGE AND WAYFINDING FOR WATERWORKS TRAIL, AND NATIVE SEED FARM DEMONSTRATION GARDEN.

  • 2024 WILDFIRE PREVENTION

  • 2023 TO SUPPORT CONSERVATION AND LAND MANAGEMENT PROGRAMS CONDUCTED BY IRVINE RANCH CONSERVANCY, HELP IMPROVE PARKING LOT, RESTROOM, TRAILHEAD ACCESS, SIGNAGE AND WAYFINDING FOR WATERWORKS TRAIL, AND NATIVE SEED FARM DEMONSTRATION GARDEN.

  • 2022 IMPLEMENTATION OF GNATCATCHER HABITAT RESTORATION

  • 2022 SUPPORT US NATIONAL FORESTS AND GRASSLANDS

  • 2024 TO SUPPORT GNATCATCHER HABITAT RESTORATION, MONITORING, AND MAINTENANCE AT CHINO HILLS STATE PARK

  • 2024 CONSERVATION ACTIVITIES

  • 2023 SUPPORT US NATIONAL FORESTS AND GRASSLANDS

  • 2023 CONSERVATION ACTIVITIES

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

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 11 November 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.