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← INTERNATIONAL SOCIETY OF ARBORICULTURE

Form 990 for tax year 2024

Filed by INTERNATIONAL SOCIETY OF ARBORICULTURE.

Totals

Total revenue
$11,573,930
Total expenses
$10,674,901
Contributions and grants received
$3,063,393
Grants paid
$61,268
Program service revenue
$5,937,296
Investment income
$736,257
Other revenue
$1,836,984
Total assets, end of year
$15,617,040
Total liabilities, end of year
$4,709,644
Net assets or fund balances, end of year
$10,907,396
Program services expenses (Part IX)
$6,932,037
Management and general expenses
$3,742,864
Fundraising expenses
$0
Program service expenses (Part III)
$6,932,037

Program services were 64.9% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

Line items

Every line the filer filed in Parts VIII, IX and X, as filed and in filed order. Blank columns are left out, and the lines are not forced to add up to the totals above.

Revenue

Part VIII, the statement of revenue.

  • 1b · Membership dues

    $3,063,393

  • 2a · Program service revenue: Credentialing

    total $4,911,496 · related or exempt $4,911,496

  • 2b · Program service revenue: Event Registrations

    total $1,025,800 · related or exempt $1,025,800

  • 3 · Investment income

    total $334,934 · excluded $334,934

  • 7a · Gross sales of assets other than inventory

    securities $401,323

  • 7b · Less cost or other basis and sales expenses

    securities $0

  • 7c · Gain or loss

    securities $401,323

  • 7d · Net gain or loss

    total $401,323 · excluded $401,323

  • 10a · Gross sales of inventory

    $3,122,869

  • 10b · Cost of goods sold

    $1,339,217

  • 10c · Net income from sales of inventory

    total $1,783,652 · related or exempt $1,718,933 · unrelated business $64,719

  • 11a · Other revenue: Miscellaneous Income

    total $49,107 · related or exempt $49,107

  • 11b · Other revenue: Other Income

    total $4,225 · excluded $4,225

  • 11e · Other revenue, total

    $53,332

Functional expenses

Part IX, the statement of functional expenses.

  • 1 · Grants to domestic organizations and governments

    total $61,268 · program services $61,268

  • 5 · Compensation of officers, directors and key employees

    total $922,100 · management and general $922,100

  • 8 · Pension plan contributions

    total $124,859 · management and general $124,859

  • 9 · Other employee benefits

    total $298,908 · management and general $298,908

  • 10 · Payroll taxes

    total $55,961 · management and general $55,961

  • 11b · Fees: legal

    total $89,116 · management and general $89,116

  • 11g · Fees: other

    total $129,184 · management and general $129,184

  • 13 · Office expenses

    total $13,109 · management and general $13,109

  • 14 · Information technology

    total $722,437 · management and general $722,437

  • 16 · Occupancy

    total $387,798 · management and general $387,798

  • 17 · Travel

    total $109,085 · management and general $109,085

  • 22 · Depreciation, depletion and amortization

    total $65,062 · management and general $65,062

  • 23 · Insurance

    total $99,512 · management and general $99,512

  • 24a · Other expenses: Credentialing

    total $3,608,820 · program services $3,608,820

  • 24b · Other expenses: Events

    total $1,674,030 · program services $1,674,030

  • 24c · Other expenses: Sales & Marketing

    total $600,397 · program services $600,397

  • 24d · Other expenses: Membership Expense

    total $515,220 · program services $515,220

  • 24e · All other expenses

    total $1,198,035 · program services $472,302 · management and general $725,733

Balance sheet

Part X, book values.

  • 1 · Cash, non-interest-bearing

    beginning of year $2,641,748 · end of year $1,978,476

  • 2 · Savings and temporary cash investments

    end of year $6,257,385

  • 4 · Accounts receivable

    beginning of year $389,529 · end of year $379,795

  • 8 · Inventories for sale or use

    beginning of year $318,712 · end of year $325,710

  • 9 · Prepaid expenses and deferred charges

    beginning of year $129,518 · end of year $141,203

  • 10a · Land, buildings and equipment: cost or other basis

    $1,462,834

  • 10b · Land, buildings and equipment: accumulated depreciation

    $894,709

  • 10c · Land, buildings and equipment, net

    beginning of year $199,529 · end of year $568,125

  • 11 · Investments: publicly traded securities

    beginning of year $9,302,748 · end of year $4,821,740

  • 15 · Other assets

    beginning of year $1,403,776 · end of year $1,144,606

  • 17 · Accounts payable and accrued expenses

    beginning of year $1,013,362 · end of year $967,363

  • 19 · Deferred revenue

    beginning of year $2,354,015 · end of year $2,414,226

  • 25 · Other liabilities

    beginning of year $1,611,133 · end of year $1,328,055

  • 27 · Net assets without donor restrictions

    beginning of year $9,407,050 · end of year $10,907,396

Mission and programs · 2024

Mission

Through research, technology, and education, the International Society of Arboriculture will promote the professional practice of arboriculture and foster a greater worldwide awareness of the benefits of trees.

Activities or mission (Part I)

Through research, technology, and education, the International Society of Arboriculture (ISA) will promote the professional practice of arboriculture and foster a greater worldwide awareness of the benefits of trees.

  • Credentialing - Provide certification examination services for potential candidates and recertification services to existing credentials to support the professional development of the arborists. the credentialing program serves over 61,000 credentials in 45 countries. ISA certification programs managed over 600,000 continuing education units submitted by various credential holders. ISA provides qualification training workshops and credential testing services for participants.

    Expenses $3,608,820 · Revenue $4,911,496

  • Educational Products and Services - EPS manages the development and production of monthly publications for isa members, to disseminate timely and relevant articles, news, information, and research regarding trees and tree care. EGS develops and distributes educational materials for the industry, including publications, workshop curriculum, online learning courses, podcasts, and consumer and industry brochures. 6 issues of the arborist news were published, 6 issues of the arboriculture and urban forestry journal were published, and 3new publications were published: tree injection BMP, Arborists' certification study guide and ITCC rule book.

    Expenses $472,303 · Revenue $1,718,933

  • Events - Operate educational events, including training workshops, conferences, tradeshows, and symposiums, to provide information regarding tree related subjects to members and attendees. ISA held it's Annual Conference and Trade Show in Atlanta in 2024. ISA provides for the International Tree Climbing Championship, North American Tree Climbing Competition, European Tree Climbing Competition, Asia-Pacific Tree Climbing Competition, and Latin America Tree Climbing Competition to highlight and demonstrate the various skills of arboricultural practitioners and tree climbing and creating awareness about the importance of trees and tree care to the public.

    Expenses $1,674,026 · Revenue $1,025,800

  • Expenses $1,176,888 · Grants $61,268 · Revenue $49,107

As filed on the 2024 return.

Listed in Part VII

  • Nicolaas Verloop

    President(Upto Oct 24)

    Total calculated
    $0
    Hours/week
    15
  • Thomas Smiley

    President

    Total calculated
    $0
    Hours/week
    10
  • Gail Nozal

    Vice President(Upto Oct 24)

    Total calculated
    $0
    Hours/week
    5
  • Randall Miller

    Secretary (Upto Oct 24)

    Total calculated
    $0
    Hours/week
    5
  • Sharon Jean-Philippe

    President- Elect

    Total calculated
    $0
    Hours/week
    5
  • Christopher Boza

    Treasurer

    Total calculated
    $0
    Hours/week
    5
  • John Gathright

    Member(Upto Oct 24)

    Total calculated
    $0
    Hours/week
    5
  • Carlos Llanos Rojas

    Member(Upto Oct 24)

    Total calculated
    $0
    Hours/week
    5
  • John Coles

    Member

    Total calculated
    $0
    Hours/week
    5
  • Samuel Ma

    Member

    Total calculated
    $0
    Hours/week
    5
  • Tadashi Touchi

    Member

    Total calculated
    $0
    Hours/week
    5
  • Susan Day

    Member

    Total calculated
    $0
    Hours/week
    5
  • Jason Grabosky

    Member

    Total calculated
    $0
    Hours/week
    5
  • Jessica Sanders

    Vice President

    Total calculated
    $0
    Hours/week
    5
  • Michael Watson

    Member

    Total calculated
    $0
    Hours/week
    5
  • Lori Brockelbank

    Member (Served October-December)

    Total calculated
    $0
    Hours/week
    5
  • Rebecca Johnson

    Member (Served October-December)

    Total calculated
    $0
    Hours/week
    5
  • Tim Walsh

    Member (Served October-December)

    Total calculated
    $0
    Hours/week
    5
  • Stephen Lane

    Member (Served October-December)

    Total calculated
    $0
    Hours/week
    5
  • Lauren Marshall

    Member (Served October-December)

    Total calculated
    $0
    Hours/week
    5
  • Caitlyn Pollihan

    CEO & Executive Director

    Total calculated
    $388,638
    From this org
    $359,703
    From related orgs
    $0
    Other
    $28,935
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $357,103
    Bonus
    $2,600
    Other
    $0
    Deferred
    $18,978
    Nontaxable benefits
    $9,957
    Filer's total
    $388,638
  • Freddie Harroway

    Director of Finance

    Total calculated
    $146,025
    From this org
    $132,600
    From related orgs
    $0
    Other
    $13,425
    Hours/week
    40
  • Chastity Austin

    Director of Human Resources

    Total calculated
    $147,985
    From this org
    $131,748
    From related orgs
    $0
    Other
    $16,237
    Hours/week
    40
  • Luana Vargas

    Director of Credentialing

    Total calculated
    $145,000
    From this org
    $126,776
    From related orgs
    $0
    Other
    $18,224
    Hours/week
    40
  • Alice Bagley

    Director of Marketing

    Total calculated
    $135,231
    From this org
    $118,310
    From related orgs
    $0
    Other
    $16,921
    Hours/week
    40
  • Jamie Vidich

    Director of Educational Products

    Total calculated
    $130,287
    From this org
    $116,931
    From related orgs
    $0
    Other
    $13,356
    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.

Schedule J

Answered yes

  • 1a · First-class or charter travel
  • 1a · Travel for companions
  • 1a · Tax indemnification and gross-up payments
  • 1a · Discretionary spending account
  • 1a · Housing allowance or residence for personal use
  • 1a · Payments for business use of a personal residence
  • 1a · Health or social club dues or initiation fees
  • 1a · Personal services (maid, chauffeur, chef)
  • 1b · Written policy on the line-1a expenses
  • 2 · Substantiation required before reimbursing expenses
  • 3 · Written employment contract
  • 3 · Compensation survey or study
  • 3 · Approval by the board or compensation committee

Answered no

  • 4a · Severance or change-of-control payment
  • 4b · Supplemental nonqualified retirement plan
  • 4c · Equity-based compensation arrangement

The filer's explanations (Part III)

Part I, Line 1a
Performance will be determined by utilizing a formal evaluation form and will incorporate the input of members of the board of directors at a minimum. The ISA President will initiate an annual review of the work performance of the ISA CEO & Executive Director in accordance with this polity. A salary range will be determined for the position of CEO & Executive Director. Adjustments to salary are determined based on evaluation of the CEO & Executive Director's performance during the past year. The President along with the executive committee will determine pay adjustments based on the results of the CEO & Executive Director's performance review. It is the responsibility of the president and president-elect to communicate the results of the performance evaluation and any adjustments to the salary. Responsibility for execution of the salary changes lie with the director of human resources as directed by the president. The range will be based on benchmarking of similar positions in terms of geographic location, budget, personnel and job responsibilities. The range of salary for the CEO & Executive Director will be set by benchmarking against non-profits similar in size, geographical area, budget and responsibilities of the CEO & Executive Director. Salary benchmarking will be conducted by a professional executive compensation research service every five years or no sooner than three years if necessary. The director of human resources will assist the president to acquire data and select and retain the benchmarking consultant if needed. Pay is generally centered on the mid-point of the range. Pay above the mid-point is for consistent exemplary performance. Sources used include national executive compensation survey from employers' association, ASAE association compensation, American research company national compensation study, and a third party (employers' Assn) review letter.

Part I's answers as filed. A line not listed was left unanswered; on lines 1a and 3 that means the box was not checked.

Grants on this return

Provenance

Return type
form_990
Tax year
2024
Filed
13 October 2025
IRS schema version
2024v5.2
Source object
202512969349302071

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