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
-
Support arboriculture research to benefit the professional arborists and unban foresters
Provenance
- Return type
- form_990
- Tax year
- 2024
- Filed
- 13 October 2025
- IRS schema version
- 2024v5.2
- Source object
- 202512969349302071
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