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ROCKY MOUNTAIN BIOLOGICAL LABORATORY AT GOTHIC

EIN 84-6050523 CRESTED BUTTE, CO

Browse the largest nonprofits in Colorado

Revenue 2024
$5,147,911
Expenses 2024
$3,775,423

Program services were 72.4% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
U50Z
Classification
2000
Street
PO BOX 519

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

ADVANCE THE SCIENTIFIC UNDERSTANDING OF NATURE THAT PROMOTES INFORMED STEWARDSHIP OF EARTH.

  • RESEARCH AND GRANT: RMBL CONDUCTS FIELD RESEARCH ON A RANGE OF SUBJECTS INCLUDING BUT NOT LIMITED TO ECOLOGY AND EVOLUTIONARY BIOLOGY, ATMOSPHERIC SCIENCE, AND HYDROLOGY. SINCE 1928 RMBL SCIENTISTS HAVE PUBLISHED APPROXIMATELY 1800 PEER-REVIEWED RESEARCH PUBLICATIONS.

    Expenses $1,591,239 · Grants $159,246 · Revenue $1,032,399

  • INSTRUCTION, EDUCATION & AUXILIARY SERVICES: RMBL LAYERS EDUCATION AND OUTREACH PROGRAMS ON TOP OF RESEARCH, PROVIDING UNIQUE FIELD-BASED LEARNING OPPORTUNITIES FOR STUDENTS OF ALL AGES, INCLUDING SUPPORTING SCHOOL PROGRAMS. RMBL PROVIDES UNDERGRADUATE AND GRADUATE STUDENTS TRAINING OPPORTUNITIES.

    Expenses $855,121 · Grants $29,690 · Revenue $333,456

  • PHYSICAL PLANT: ENCOMPASSES THE PHYSICAL STRUCTURES THAT RMBL OPERATES IN, INCLUDING THE SEARCH FOR NEW LOCATIONS TO OPEN RMBL TO NEW RESEARCH OPPORTUNITIES.

    Expenses $286,251

As filed on the 2024 return.

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.

  • Jennifer Darnell

    CHAIR

    Total calculated
    $0
    Hours/week
    1
  • Dan Blumestein

    PRESIDENT

    Total calculated
    $0
    Hours/week
    1
  • Brian Wildes

    TREASURER

    Total calculated
    $0
    Hours/week
    1
  • Kenneth Williams

    SECRETARY

    Total calculated
    $0
    Hours/week
    1
  • Susan Avery

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • James Brogan

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Hamish Greig

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Amy Iler

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Carol Johnson

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Lara Souza

    TRUSTEE

    Total calculated
    $0
    Hours/week
    1
  • Ian Billick Until 123124

    EXECUTIVE DI

    Total calculated
    $154,861
    From this org
    $154,861
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $154,861
    Bonus
    not reported
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    not reported
    Filer's total
    $154,861
  • Brett Biebuyck

    DIR OF OPERA

    Total calculated
    $115,050
    From this org
    $115,050
    From related orgs
    $0
    Other
    $0
    Hours/week
    40
  • Jennifer Reithel

    SCIENCE DIRE

    Total calculated
    $106,050
    From this org
    $106,050
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

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
    $5,147,911
    Expenses
    $3,775,423
    Contributions
    $2,330,751
    Grants paid
    $432,544
  • 2023
    Revenue
    $4,542,206
    Expenses
    $4,387,329
    Contributions
    $2,700,215
    Grants paid
    $481,555
  • 2022
    Revenue
    $6,283,629
    Expenses
    $4,832,753
    Contributions
    $4,383,743
    Grants paid
    $121,749

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
    $6,198,655
    Expenses
    $4,199,245
    Assets (EOY)
    $14,775,706
  • 2021 · 990

    Revenue
    $6,446,498
    Expenses
    $4,276,223
    Assets (EOY)
    $14,775,705
  • 2020 · 990

    Revenue
    $2,888,519
    Expenses
    $3,290,595
    Assets (EOY)
    $12,834,759
  • 2019 · 990

    Revenue
    $3,194,997
    Expenses
    $3,481,505
    Assets (EOY)
    $12,619,200
  • 2018 · 990

    Revenue
    $3,754,702
    Expenses
    $3,498,582
    Assets (EOY)
    $12,480,594
  • 2017 · 990

    Revenue
    $2,519,655
    Expenses
    $2,397,576
    Assets (EOY)
    $12,337,160
  • 2016 · 990

    Revenue
    $2,876,794
    Expenses
    $2,388,979
    Assets (EOY)
    $11,964,908
  • 2015 · 990

    Revenue
    $1,926,751
    Expenses
    $2,121,248
    Assets (EOY)
    $11,403,529
  • 2014 · 990

    Revenue
    $3,074,834
    Expenses
    $2,047,363
    Assets (EOY)
    $11,620,292
  • 2013 · 990

    Revenue
    $4,307,480
    Expenses
    $2,163,838
    Assets (EOY)
    $10,417,284

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

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.

Related corporations and trusts on its 2022 return

  • BWC CAFE

    C · CAFE · CO · 100% owned

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.