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ISF ADVISORS

EIN 87-1088927 WASHINGTON, DC

Revenue 2024
$2,810,791
Expenses 2024
$3,369,373

Program services were 66.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
K20
Classification
1000
Street
1401 K ST NW STE 900

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).

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.

  • DANIEL ZOOK

    EXECUTIVE DIRECTOR

    Total calculated
    $372,364
    From this org
    $340,210
    From related orgs
    $0
    Other
    $32,154
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $310,010
    Bonus
    $30,200
    Other
    $0
    Deferred
    $20,700
    Nontaxable benefits
    $11,454
    Filer's total
    $372,364

  • CRAIG COURTNEY

    MANAGING DIRECTOR

    Total calculated
    $370,333
    From this org
    $330,755
    From related orgs
    $0
    Other
    $39,578
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $300,987
    Bonus
    $29,768
    Other
    $0
    Deferred
    $30,317
    Nontaxable benefits
    $9,261
    Filer's total
    $370,333

  • ELIZABETH VANDERWOUDE

    CFO/TREASURER

    Total calculated
    $218,600
    From this org
    $0
    From related orgs
    $203,936
    Other
    $14,664
    Hours/week
    2 + 30 related

    Schedule J breakdown matched by us

    Base
    $0 + $203,936 related
    Bonus
    $0
    Other
    $0
    Deferred
    $0 + $12,236 related
    Nontaxable benefits
    $0 + $2,428 related
    Filer's total
    $0 + $218,600 related

  • HAYDEN ALDREDGE

    SENIOR MANAGER

    Total calculated
    $155,682
    From this org
    $140,378
    From related orgs
    $0
    Other
    $15,304
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $140,378
    Bonus
    $0
    Other
    $0
    Deferred
    $7,173
    Nontaxable benefits
    $8,131
    Filer's total
    $155,682

  • ANDREW GRAHAM

    SENIOR ASSOCIATE

    Total calculated
    $107,929
    From this org
    $101,967
    From related orgs
    $0
    Other
    $5,962
    Hours/week
    40

  • THOMAS CARROLL

    BOARD CHAIR

    Total calculated
    $80,692
    From this org
    $0
    From related orgs
    $76,681
    Other
    $4,011
    Hours/week
    2 + 4 related

  • LORENZO BERNASCONI

    BOARD MEMBER

    Total calculated
    $0
    Hours/week
    2

  • MIRIAM CHEROGONY

    BOARD MEMBER

    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 — 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
    $2,810,791
    Expenses
    $3,369,373
    Contributions
    $798,087
    Grants paid
    $0
  • 2023
    Revenue
    $4,035,127
    Expenses
    $3,461,518
    Contributions
    $1,474,091
    Grants paid
    $0
  • 2022
    Revenue
    $2,785,565
    Expenses
    $2,648,616
    Contributions
    $1,190,856
    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.

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

Related organizations

From Schedule R Part II, where a filer lists the tax-exempt organizations it is related to by control. It does not record shared board members or money.

Declared on its 2024 return

Declared as related by

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 10 September 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.