International Society on Thrombosis and Haemostasis Inc

Nonprofit profile at a glance

EIN
237428305
IRS 990 coverage
2010–2025
Forms available
Form 990 2025
Location
Charlotte, NC, USA
Phone
9199293807
Rating
75
Verdict
SUPPORTED
Rating confidence
Moderate

Official website

Reported finances

Revenue
$12,803,951
Expenses
$11,947,441
Assets
$18,797,413
Liabilities
$3,528,776

Source: IRS Form 990. Selected filing: tax year 2025. Amounts in USD.

Leadership & pay

25 people listed

Executive titles in this filing

  • PANTEP ANGCHAISUKSIRI (PRESIDENT)
  • WOLFRAM RUF (PRESIDENT-EL)

Highest reported compensation

  • THOMAS REISER (EXECUTIVE DI): $440,035 total reported compensation
  • LOUISE BANNON (DIR MEMBRSHI): $229,718 total reported compensation
  • JEFFREY CAIOLA (DIR FINANCE): $220,967 total reported compensation

Source: IRS Form 990. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.

Overview

Mission

The international society on thrombosis and haemostasis (isth) advances the understanding, prevention, diagnosis and treatment of conditions related to thrombosis and hemostasis. The society is dedicated to transformative scientific discoveries and clinical practices, the development of young professionals and the education of physicians, scientists and allied health professionals wherever they may live.

What it reported doing in 2025

Publication (hardcopy and online) of the journal of thrombosis and haemostasis(jth), which serves as an international forum for original research articles, reports and recommendations and reviews related to the important medical problems of thrombosis, bleeding disorders, and vascular biology. Twelve issues are published annually. Publication of a monthly e- newsletter providing information on isth events, educational activities and programs, news and interviews. Complementing the society's flagship journal, journal of thrombosis and haemostasis (jth), is the open access online journal, research and practice in thrombosis and haemostasis (rpth). Rpth is a platform for science and discourse among researchers, clinicians, nurses, allied health professionals, and patients. Published in partnership with elsevier, rpth is interested in basic, clinical, translational and population or public health research. Member services provides benefits tailored to clinicians, researchers, nurses, and allied health professionals at all stages of their careers in bleeding and clotting disorders through education, programs and activities, and professional networking. The scientific and standardization committee (ssc) is a permanent committee of the isth and is its scientific working arm. Conducted through subcommittees and working groups, its activities promote cooperation among leading international scientists and direct their energies to projects that generate reliable and standardized clinical and basic science tools.

Operating model

Revenue model
Earned-program. 76% of the money available for current operations came from fees and other program revenue.
Distribution model
Direct operator. The filing allocates 96% of reported program-service expenses outside its grant, affiliate-payment, and member-benefit lines. This expense classification does not rule out separately announced grant awards.

The verdict

SUPPORTED - A large share of available resources goes toward mission work and the filed numbers largely add up. Fundraising costs are high for each dollar raised and expenses are high relative to revenue.

Rating breakdown

  • Financial Efficiency: 74
  • Transparency & Controls: 64
  • Accountability: 95
  • Sustainability: 44
  • Growth: 100

Detailed rating inputs

Financial Efficiency

  • Mission deployment rate: 81.2%; rating input score 81
  • Program expense ratio: 80%; rating input score 80
  • Fundraising efficiency: $7.52 raised per $1 spent on fundraising; rating input score 24; 24th percentile among comparable filings

Transparency & Controls

  • Consistency checks: 92.9%; rating input score 93; 13th percentile among comparable filings
  • Pay-setting controls: 2 of 6 controls in place; rating input score 33
    • Compensation committee: Missing
    • Independent consultant: Missing
    • Other Form 990s reviewed: Missing
    • Written employment contract: Missing
    • Compensation survey or study: Pass
    • Board or committee approval: Pass
  • Foreign activity oversight: 1 of 8 controls in place; rating input score 12
    • Claims monitoring procedures: Pass
    • Requires narrative reports: Limited
    • Conducts field audits: Limited
    • May suspend future funding: Limited
    • Requires financial reports: Limited
    • Conducts site visits: Limited
    • Requires grant agreements: Limited
    • May require repayment: Limited
  • Grant itemization coverage: 87.3%; rating input score 87; 26th percentile among comparable filings
  • Major donor itemization: Yes; rating input score 100
  • Related-party transparency: Limited

Accountability

  • Independent voting board: 100%; rating input score 100; 64th percentile among comparable filings
  • Governance controls: 7 of 8 controls in place; rating input score 88
    • Conflict-of-interest policy: Pass
    • Whistleblower policy: Pass
    • Document-retention policy: Pass
    • CEO compensation review process: NotApplicable
    • Other executive compensation review process: Pass
    • Form 990 shared with the board: Pass
    • Board meeting minutes documented: Pass
    • Audit committee oversight: Pass
    • Independent financial-statement audit: Fail

Sustainability

  • Operating margin: 6.7%; rating input score 49; 49th percentile among comparable filings
  • Total-asset coverage ratio: 1.57; rating input score 43; 43rd percentile among comparable filings
  • Liabilities to assets ratio: 0.19; rating input score 53; 53rd percentile among comparable filings
  • Officer compensation ratio: 12.7%; rating input score 16; 16th percentile among comparable filings

Growth

  • Program expense growth: 2.3% per year; rating input score 100; 20th percentile among comparable filings
  • Revenue growth: 3.7% per year; rating input score 100; 29th percentile among comparable filings
  • Asset growth: 3.1% per year; rating input score 100; 20th percentile among comparable filings

Details

  • Where the money goes: 81.2% of revenue deployed · 80% of spending went to programs
  • Governance: 21 of 21 board members independent · 7 of 8 filing controls reported
  • Programs: 4 filed program accomplishments · $9.6M in reported program spending
  • Leadership: top reported pay $440K · 25 people listed · 2 of 6 pay-setting controls reported
  • Highest-paid contractors: 1 contractor listed · $152K reported
  • Consistency: 31 of 33 current checks pass · 2 findings to review
  • Schedules: 7 filed schedules · includes major donors, foreign activity, grants, and executive pay
  • Filing history: 16 filing years from 2010 to 2025
  • Contacts: How to reach this organization
  • Money network: 11 filed money-flow records
  • Related organizations: 4 filed related-organization links
  • Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
  • People: Everyone the filings name, and which of them the filings identify by more than a name.

Key Signals

Signals prioritize questions for review. They are not findings of misconduct.

  • High — Financial Efficiency: Fundraising efficiency scored 24/100.
  • Moderate — Sustainability: Operating margin scored 49/100.
  • Review — Accountability: Governance controls: Independent financial-statement audit not reported.
  • Moderate — Sustainability: Total-asset coverage ratio scored 43/100.
  • High — Sustainability: Officer compensation ratio scored 16/100.
  • Review — Transparency & Controls: Domestic grant itemization did not reconcile in the filed values.
  • Review — Transparency & Controls: Foreign grant itemization did not reconcile in the filed values.
  • Review — Sustainability: Liabilities to assets ratio scored 53/100.