Civic Intelligence

International Society for Laboratory

EIN 27-0662044 • 501(c)3 • Glenview, IL

Profile

The International Society for Laboratory Hematology (ISLH) is an international group of laboratory hematology professionals serving as a forum for the dissemination of new ideas and information in all of the disciplines within laboratory hematology. These include:Cellular AnalysisHemostasis and ThrombosisFlow CytometryMolecular DiagnosticsHemoglobinopathies and ThalassemiaHemolytic AnemiasPoint of Care TestingHematology InformaticsStandards and Guidelines

2111 Chestnut Avenue 145Glenview, IL 60025

www.islh.org/web/index.php

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

58th percentile

0.11x

Higher debt load relative to assets than 58% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Liabilities / Revenue

73rd percentile

0.29x

Higher debt load relative to revenue than 73% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Net Margin

7th percentile

-48%

Higher net margin than 7% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Top Officer Pay

40th percentile

$0

Higher top officer pay than 40% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Asset Growth

20th percentile

-6.9%

Faster asset growth than 20% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Revenue Growth

7th percentile

-42%

Faster revenue growth than 7% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets58th percentile

Assets

Down

$1,364,779

Down $100,457 (-6.9%) from 2024

Liabilities

Up

$151,707

Up $71,236 (+89%) from 2024

Net Assets

Down

$1,213,072

Down $171,693 (-12%) from 2024

Operations
Liabilities / Revenue73rd percentileNet Margin7th percentile

Revenue

Down

$517,511

Down $368,938 (-42%) from 2024

Expenses

Up

$768,443

Up $19,847 (+2.7%) from 2024

Net Income

Down

-$250,932

Down $388,785 (-282%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth20th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$2.0M$1.5M$1.0M$500K$0Assets 2011: $302,307Liabilities 2011: $24,197Net Assets 2011: $278,1102011Assets 2012: $572,086Liabilities 2012: $34,537Net Assets 2012: $537,5492012Assets 2013: $980,300Liabilities 2013: $47,754Net Assets 2013: $932,5462013Assets 2014: $969,118Liabilities 2014: $107,037Net Assets 2014: $862,0812014Assets 2015: $1,180,520Liabilities 2015: $286,268Net Assets 2015: $894,2522015Assets 2016: $1,337,304Liabilities 2016: $394,725Net Assets 2016: $942,5792016Assets 2017: $1,467,059Liabilities 2017: $555,449Net Assets 2017: $911,6102017Assets 2018: $1,524,840Liabilities 2018: $660,027Net Assets 2018: $864,8132018Assets 2019: $1,592,285Liabilities 2019: $583,406Net Assets 2019: $1,008,8792019Assets 2020: $1,360,554Liabilities 2020: $420,804Net Assets 2020: $939,7502020Assets 2021: $1,535,727Liabilities 2021: $384,746Net Assets 2021: $1,150,9812021Assets 2022: $1,454,553Liabilities 2022: $125,816Net Assets 2022: $1,328,7372022Assets 2023: $1,410,616Liabilities 2023: $168,898Net Assets 2023: $1,241,7182023Assets 2024: $1,465,236Liabilities 2024: $80,471Net Assets 2024: $1,384,7652024Assets 2025: $1,364,779Liabilities 2025: $151,707Net Assets 2025: $1,213,0722025

Highlighted filing

2025

Assets$1,364,779
Liabilities$151,707
Net Assets$1,213,072
Open 2025 Filing

Operations Trend

Revenue Growth7th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$1.0M$500K$0-$500KExpenses 2011: $488,8382011Expenses 2012: $737,1842012Revenue 2013: $959,735Expenses 2013: $564,818Net Income 2013: $394,9172013Revenue 2014: $640,332Expenses 2014: $710,797Net Income 2014: -$70,4652014Revenue 2015: $710,463Expenses 2015: $678,292Net Income 2015: $32,1712015Revenue 2016: $978,093Expenses 2016: $929,766Net Income 2016: $48,3272016Revenue 2017: $741,071Expenses 2017: $772,040Net Income 2017: -$30,9692017Revenue 2018: $738,496Expenses 2018: $785,293Net Income 2018: -$46,7972018Revenue 2019: $697,092Expenses 2019: $605,813Net Income 2019: $91,2792019Revenue 2020: $376,603Expenses 2020: $488,812Net Income 2020: -$112,2092020Revenue 2021: $395,563Expenses 2021: $266,930Net Income 2021: $128,6332021Revenue 2022: $996,122Expenses 2022: $742,116Net Income 2022: $254,0062022Revenue 2023: $532,281Expenses 2023: $695,692Net Income 2023: -$163,4112023Revenue 2024: $886,449Expenses 2024: $748,596Net Income 2024: $137,8532024Revenue 2025: $517,511Expenses 2025: $768,443Net Income 2025: -$250,9322025

Highlighted filing

2025

Revenue$517,511
Expenses$768,443
Net Income-$250,932
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$1,364,779
Liabilities
$151,707
Net assets
$1,213,072
Revenue
$517,511
Expenses
$768,443
Net income
-$250,932
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$1.36$0.15$1.21$0.52$0.77$0.25
2024Detailed filing. Detailed filing data is available for this year.$1.47$0.08$1.38$0.89$0.75$0.14
2023Detailed filing. Detailed filing data is available for this year.$1.41$0.17$1.24$0.53$0.70$0.16
2022Detailed filing. Detailed filing data is available for this year.$1.45$0.13$1.33$1.00$0.74$0.25
2021Detailed filing. Detailed filing data is available for this year.$1.54$0.38$1.15$0.40$0.27$0.13
2020Detailed filing. Detailed filing data is available for this year.$1.36$0.42$0.94$0.38$0.49$0.11
2019Detailed filing. Detailed filing data is available for this year.$1.59$0.58$1.01$0.70$0.61$0.09
2018Detailed filing. Detailed filing data is available for this year.$1.52$0.66$0.86$0.74$0.79$0.05
2017Detailed filing. Detailed filing data is available for this year.$1.47$0.56$0.91$0.74$0.77$0.03
2016Detailed filing. Detailed filing data is available for this year.$1.34$0.39$0.94$0.98$0.93$0.05
2015Detailed filing. Detailed filing data is available for this year.$1.18$0.29$0.89$0.71$0.68$0.03
2014Detailed filing. Detailed filing data is available for this year.$0.97$0.11$0.86$0.64$0.71$0.07
2013Detailed filing. Detailed filing data is available for this year.$0.98$0.05$0.93$0.96$0.56$0.39
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.57$0.03$0.54$0.74
2011Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.30$0.02$0.28$0.49
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2025 to Dec 31, 2025
Signed
Feb 17, 2026
Return Version
2025v4.0
Gross Receipts
$517,511
Mission and Program Overview

Mission

The International Society for Laboratory Hematology (ISLH) is an international group of laboratory hematology professionals serving as a forum for the dissemination of new ideas and information in all of the disciplines within laboratory hematology. These include:Cellular AnalysisHemostasis and ThrombosisFlow CytometryMolecular DiagnosticsHemoglobinopathies and ThalassemiaHemolytic AnemiasPoint of Care TestingHematology InformaticsStandards and Guidelines

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$964,840$654,172▼ $310,668
Investments in Publicly Traded Securities$482,800$562,039▲ $79,239
Prepaid Expenses and Deferred Charges$14,592$147,111▲ $132,519
Accounts Receivable$3,004$1,457▼ $1,547
Savings and Temporary Cash Investments-$0-
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Land, Buildings, and Equipment, Net-$0-
Intangible Assets-$0-
Inventories for Sale or Use-$0-
Total Assets$1,465,236$1,364,779▼ $100,457
Other Assets Total-$0-
Liabilities
Deferred Revenue$80,471$151,706▲ $71,235
Other Liabilities-$1-
Total Liabilities$80,471$151,707▲ $71,236
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$1,384,765$1,213,072▼ $171,693
Total Net Assets Fund Balance$1,384,765$1,213,072▼ $171,693
Total Liabilities and Net Assets / Fund Balance$1,465,236$1,364,779▼ $100,457
Compensation and Service Providers
Top Officer Pay40th percentile

Board Members and Trustees

NameTitle
Tracy George MDPast President
John Frater MDPresident
Archana Agarwal MDBoard Member
Elosa Urrechaga PhDBoard Member
Gina Zini MD PhDBoard Member
Hiromichi Matsushita MD PhDBoard Member
Jessica Opie MBChB MRCPBoard Member
Jin-Yeong Han MD PhDBoard Member
Maha Othman MD MSc PhDBoard Member
Martha Eva Viveros PhDBoard Member
Pierre Toulon PharmDBoard Member
Samia Rizk MDBoard Member
Simon Davidson FIBMS MPHILBoard Member
Swati Pai MD DNBBoard Member
Giuseppe d'Onofrio MDCo-Editor
Ian Mackie PhD FRCPathCo-Editor
Olga Weinberg MDTreasurer
Alexa Siddon MDVP - Membership
Katrien Devreese MD PhDVP Comms
Chee Wee Tan MBBS FRACP PhDVP Education

Highest Paid Contractors

ContractorServicesLocationCompensation
SplHost IncManagement2111 Chestnut Avenue Suite 145, Glenview, IL 60025$164,304
Revenue and Support

Revenue Composition

Contributions and Grants
$157,242
Program Service Revenue
$326,792
Investment Income
$6,283
Other Revenue
$27,194
All Other Contributions
$157,242
Change in Net Assets
$-250,932
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$744,992
Grants and Similar Amounts Paid$23,451
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Conferences and Meetings$496,757--$496,757
Fees for Services Management$41,076$41,076-$82,152
Grants to Domestic Individuals$15,169--$15,169
Information Technology$11,750--$11,750
Travel-$9,515-$9,515
Foreign Grants$8,282--$8,282
Fees for Services Accounting-$2,375-$2,375
Insurance-$1,535-$1,535
Other Expenses$31,869$109-$109
Total Functional Expenses$713,455$54,988$0$768,443
International Activity

International Summary

Spending
$145,161

International Compliance

Foreign grant records maintained
Yes
Activity in boycott countries
No
Foreign corporation ownership
No
Foreign partnership interest
No
Interest in foreign trust
No
Passive foreign investment company interest
No
Transfers to foreign corporations
No

International Activities

RegionActivityServicesOfficesEmployeesSpending
EuropeAnnual SymposiumLocal meeting expenditures00$106,034
EuropeJournal PublicationPrinting, etc.00$30,845
EuropeAnnual SymposiumHonoraria/travel awards00$4,132
South AsiaAnnual SymposiumHonoraria/travel awards00$3,100
North AmericaAnnual SymposiumHonoraria/travel awards00$800
East Asia & PacificAnnual SymposiumHonoraria/travel awards00$250
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Rounding$1
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
Yes

Governance Explanations

Form 990, Part VI, Section A, Line 1A

“No authority delegated - committees act on an advisory basis.”

Form 990, Part VI, Section A, Line 3

“Meeting planning, bookkeeping and general administrative duties contracted to SPLHost, Inc.Membership recruiting and meeting/organization promotion contracted to Biospecifix.”

Form 990, Part VI, Section A, Line 6

“There are two classes of members. General Members are any medical or scientific professional engaged in the practice of or research in the field of laboratory hematology upon payment of annual dues and approval of membership application by the Board of Directors. Student/Trainee Members are any student engaged in the study of the field of laboratory hematology or person training to practice or conduct research in such field upon payment of annual dues and approval of membership application by the Board of Directors.”

Form 990, Part VI, Section B, Line 11B

“Draft copy of Form 990 and all attachments forwarded to each Board Member for approval prior to filing.”

Form 990, Part VI, Section B, Line 12C

“Annually, Board Members review and update, if applicable, the conflict of interest written policies. They also review and address any potential conflicts of interest that may arise in regards to events sponsored by the society.”

Form 990, Part VI, Section C, Line 19

“Governing documents are posted on the organization's web site. Annual budget is available to membership upon request. Form 990, including attachments, is available to membership upon request.”

Filing and Contact Details

Filer

Filer Name
International Society for Laboratory
EIN
27-0662044
Phone
8479833519
Address
2111 Chestnut Avenue 145, Glenview, IL 60025

Signing Officer

Name
Olga Weinberg MD
Title
Treasurer
Signed
2026-02-17
Discuss with paid preparer
Yes

Organization Details

Principal Officer
John Frater MD
Formed
2009
Legal Domicile
Oh
Voting Board Members
18
Independent Board Members
18
Employees
0
Volunteers
25

Preparer

Firm
R L Kearns CPA
Address
3120 Kentish Town LN, RALEIGH, NC 27612
Preparer
Richard L Kearns CPA
Phone
9194280225
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This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990/Form990PartVIISectionAGrp/PersonNm0Elosa Urrechaga PhD
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IRS990/Form990PartVIISectionAGrp/PersonNm13Olga Weinberg MD
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IRS990/Form990PartVIISectionAGrp/TitleTxt15VP - Membership
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IRS990/MissionDesc0The International Society for Laboratory Hematology (ISLH) is an international group of laboratory hematology professionals serving as a forum for the dissemination of new ideas and information in all of the disciplines within laboratory hematology. These include:Cellular AnalysisHemostasis and ThrombosisFlow CytometryMolecular DiagnosticsHemoglobinopathies and ThalassemiaHemolytic AnemiasPoint of Care TestingHematology InformaticsStandards and Guidelines
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IRS990/ProgSrvcAccomActy2Grp/Desc0Developed and presented educational webinars and E-learning courses for the benefit of the membership as part of an effort to provide timely information to that membership concerning developments in the field of laboratory hematology. Education network is designed in part to familiarize pathologists with the current diagnostic workup of systemic mastocytosis (SM) and to help them to recognize the morphologic features, chose the appropriate ancillary testing (e.g., high sensitivity molecular KIT testing, flow cytometric studies, myeloid mutation testing by next-generation sequencing, etc.) and integrate clinical data to diagnose and classify SM.
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IRS990/ProgSrvcAccomActy3Grp/Desc0Published The International Journal of Laboratory Hematology for use by membership and interested parties. The journal provides an international forum for all new developments in the research and practice of laboratory hematology and includes invited reviews, full length original articles and correspondence.
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