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Trombosestichting Nederland

The Dutch Thrombosis Foundation finances research in the field of thrombosis, provides information on this condition (especially to those in contact with thrombosis) and finances postgraduate education in …

Voorschoten RSIN: 803203755 (KVK) Sign up to see website
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80
Integrity Assessment
Strong transparency
80/100 · methodology

About Trombosestichting Nederland

Every hour 11 people get a thrombosis! For example in a leg, abdomen or lungs. Every day, no less than 3 people die. Read more >

Elk uur krijgen 11 mensen een trombose! Bijvoorbeeld in een been, buik of in de longen. Per dag overlijden hieraan maar liefst 3 mensen. Lees hier verder >

Translated from Dutch by GiveRadar.

Headquarters
Voorschoten
Size
medium

Verified certifications

Confirmed against the issuing authority - not self-reported.

ANBI
CBF-Erkend Goed Doel sinds 1998

Mission

The Dutch Thrombosis Foundation finances research in the field of thrombosis, provides information on this condition (especially to those in contact with thrombosis) and finances postgraduate education in this field.

De Trombosestichting Nederland financiert het wetenschappelijk onderzoek op het gebied van trombose, geeft voorlichting over deze aandoening (in het bijzonder aan degenen die met trombose in aanraking komen) en financiert postacademisch onderwijs op dit gebied.

Translated from Dutch by GiveRadar.

Focus areas & reach

· What they work on and where

How it stacks up against peers

· vs. 8 similar health in Netherlands
Program spending This charity: 79%
Peer average: 79%
Overhead (admin + fundraising) This charity: 21%
Peer average: 21%
Integrity Assessment This charity: 80
Peer average: 75

Concerns

· None found
No red flags found
Screened for ANBI status revocation, Open investigations, Governance scandals, Related-party deals, Excessive exec comp.

Where every €1 goes

· FY2025 · Annual financial statements (FY2025)
€0.79
€0.17
Program€0.79
Administration€0.05
Fundraising€0.17
79% to programs beats the peer average (79%) and beats the Charity Navigator "highly efficient" threshold (75%).

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

From what GiveRadar has verified so far, Trombosestichting Nederland has a substantially complete profile, cross-referenced across 3 independent sources including CBF.

  • GiveRadar has verified financial records for only 3% of health charities in the Netherlands, and this is one of them. See national comparisons
  • GiveRadar holds 7 years of financial filings for this organization, the most recent for fiscal year 2025 - a deeper filing history than 93% of the 169 health charities in the Netherlands with filings on record. See the filings
  • Its integrity score of 80 places it in the top 1% of the 5,727 health charities in the Netherlands GiveRadar tracks, because GiveRadar has verified its financial disclosures and its registration. View this cohort
GiveRadar has verified
  • government registration
  • financial records (7 filed years)
  • disclosed leadership
  • a website
  • a contact email
  • a donation page
Not yet verified by GiveRadar
  • an owner-submitted profile claim

Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.

Common questions

· Auto-generated from filings + methodology

Trombosestichting Nederland is a registered health nonprofit based in Voorschoten, Netherlands. It is registered with the Kamer van Koophandel (KVK). Its registration number is 803203755. According to GiveRadar's records, it holds a valid ANBI status with the Dutch Tax Authority (Belastingdienst), which means it is officially recognised as a Public Benefit Organisation (Algemeen Nut Beogende Instelling), donations to it are tax-deductible, and it is subject to ongoing oversight and public-disclosure requirements. GiveRadar's Integrity Assessment for the organization is 80/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports €3M in annual revenue. No red flags have been detected.

Trombosestichting Nederland's official registration number is 803203755, as recorded in the national registry of Netherlands.

Trombosestichting Nederland has a GiveRadar Integrity Assessment of 80/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 80 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 79% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for health charities in Netherlands is 75/100.

Trombosestichting Nederland is located in Voorschoten, Netherlands.

Based on official tax filings, Trombosestichting Nederland has €3M in annual revenue. It allocates 79% of expenses to programs and services. This is in line with the average of 79% for health charities in Netherlands. Administrative costs account for 3% of expenses. Fundraising costs represent 18%. Its revenue is below the peer average of €11M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Trombosestichting Nederland is classified as a Health organization, registered in Netherlands. By size, it is categorized as a medium organization. It has €3M in annual revenue.

No red flags have been detected for Trombosestichting Nederland. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

According to GiveRadar's records, Trombosestichting Nederland holds a valid ANBI status with the Dutch Tax Authority (Belastingdienst), which means it is officially recognised as a Public Benefit Organisation (Algemeen Nut Beogende Instelling), donations to it are tax-deductible, and it is subject to ongoing oversight and public-disclosure requirements. It is registered with the Kamer van Koophandel (KVK). It reports that 79% of expenses go to programs (the peer average is 79%). You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.

Every hour 11 people get a thrombosis! For example in a leg, abdomen or lungs. Every day, no less than 3 people die. Read more > Trombosestichting Nederland is classified as a health organization registered in Netherlands.

Among health charities registered in Netherlands: It allocates 79% of expenses to programs, in line with the peer average of 79%. Its annual revenue of €3M is below the peer average of €11M.

Trombosestichting Nederland is registered in the Netherlands. Trombosestichting Nederland has ANBI (Algemeen Nut Beogende Instelling) status, so donations are tax-deductible. You can deduct gifts that exceed 1% of your threshold income (minimum 60 euros). Periodic gifts (committed for 5+ years) are fully deductible without threshold.

You can verify Trombosestichting Nederland's legal status in three ways. First, look up the RSIN directly on the Belastingdienst ANBI register: https://www.belastingdienst.nl/wps/wcm/connect/nl/aftrek-en-kortingen/content/anbi-status-controleren and enter 803203755. The result page confirms whether the organisation currently holds ANBI status - a prerequisite for tax-deductible donations in the Netherlands. Second, search the Kamer van Koophandel public registry at https://www.kvk.nl/zoeken/ - the KvK record shows the legal form (Stichting / Vereniging / Coöperatie), registered address, board composition (where disclosed), and the date of incorporation. Third, every ANBI is legally required by the publicatieplicht to publish on its own website: the policy plan, financial statements, an overview of activities, board composition, and remuneration policy. A working ANBI page with current financials is the strongest signal of legitimacy beyond the registry. If all three sources agree on name, address and ANBI status, the organisation is legitimate.

You can donate to Trombosestichting Nederland directly through its donation page (https://www.trombosestichting.nl/doneren/). Dutch charities typically accept iDEAL (the standard Dutch online-banking payment method), Tikkie payment requests, Bancontact for cross-border donors, SEPA bank transfer to the organisation's IBAN (account numbers starting with NL), and online payment processors (Mollie, Stripe). Many larger Dutch charities use platforms like Geef.nl, GeefSamen, Kentaa, and Pifworld for online fundraising. International donors can give via SEPA (the Netherlands is in the eurozone, so intra-EU transfers are cheap), PayPal, or GlobalGiving. For donations to count as a 'periodieke gift' - fully tax-deductible without a threshold - a written agreement (overeenkomst periodieke gift) committing for at least five years is required. Always confirm the recipient's RSIN and ANBI status before sending funds intended for the tax deduction.

Trombosestichting Nederland carries the CBF-Erkend Goed Doel label - the Dutch quality seal awarded by the Centraal Bureau Fondsenwerving (CBF). To qualify, a charity passes a three-yearly independent audit covering governance (separation of board, oversight, and management), financial transparency (audited annual accounts, clear expense breakdown), effective use of donations, responsible fundraising practices, and a working complaints procedure. You can read the public 'CBF-paspoort' for Trombosestichting Nederland here: https://cbf.nl/organisaties/901. The passport shows the most recent audit outcome and the headline financial ratios.

As an ANBI, Trombosestichting Nederland is legally required to publish the following information on its own website, free of charge and without a login (the 'publicatieplicht' obligation under Uitvoeringsregeling AWR 1994 art. 1a): the policy plan, an overview of the past year's activities, the financial statements (balance sheet, profit-and-loss, explanatory notes), board composition with names, and the remuneration policy for directors and key staff. Larger ANBIs (turnover above €50,000) must also publish a fuller financial report using the Belastingdienst's standard ANBI publication form. If you cannot find these documents on the organisation's website, that is a red flag worth raising with the board before donating.

Annual revenue
€1M-€10M
79% to programs
Source: Annual financial statements (FY2025) why this matters
Unlock exact figures

Filing history

7 years on file from Annual financial statements (FY2025): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2025, FY2024, FY2023, FY2022, FY2021, FY2020, FY2019.
Financial details are free - with a GiveRadar account

See 5 years of revenue, expense breakdowns, and balance sheet.

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Taxes

Tax-deductibility for donors

NL donations to Trombosestichting Nederland are tax-deductible only if the charity holds an active ANBI registration (Algemeen Nut Beogende Instelling). Check the charity's ANBI status before claiming a deduction.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Staff & volunteers

From filings and published profiles

Employees
7
Volunteers
25

Leadership

From FY2025 filing

DR
drs. A••• B••••
Chair

Officers & trustees (2)

Source: Public filings

See full names, roles, and stories

2 officers and trustees on file - free with a GiveRadar account.

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Latest news

From global news sources

2 articles found

From global news sources. Shown for transparency; news never affects the integrity score.

Activity timeline

Filings and press mentions, merged

Trombosestichting lanceert Vliegveiligheidskaart - Bunniksnieuws
Jun 2026
www.bunniksnieuws.nl
Trombosestichting lanceert Vliegveiligheidskaart - Sittard-Geleen.nieuws.nl
Jun 2026
sittard-geleen.nieuws.nl
Form filed
€2.8M revenue
FY2025
Annual financial statements
Form filed
€2.6M revenue
FY2024
Annual financial statements
Form filed
€2.5M revenue
FY2023
Annual financial statements
Form filed
€2.7M revenue
FY2022
Annual financial statements
Form filed
€2.9M revenue
FY2021
Annual financial statements
Form filed
€3.4M revenue
FY2020
Annual financial statements
Form filed
€2.4M revenue
FY2019
Annual financial statements

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Cause areas in Netherlands

How many charities work in each area, with this charity's area highlighted.

Education 9,146
Arts & Culture 6,349
Health this charity 5,727
Religion 5,388
Environment 2,781
International 1,515
Youth Development 1,328
Community Development 1,117
See all cause areas in Netherlands

Most common causes in Netherlands

Causes charities work on most, with this charity's causes ticked.

Arts & Culture 12,592
Religion 8,225
Youth Development 8,068
Research 5,470
Disability 4,113
Cultural Heritage 2,973
Poverty 2,363
International Development 2,338

Sources and verification

Registration and legal identity
Belastingdienst (Dutch Tax Authority) and KVK
Financial filings
Belastingdienst ANBI publication standard - Fiscal year 2025 most recent on file.
Officers and trustees
Belastingdienst (Dutch Tax Authority) and KVK - 2 disclosed in the public registry.
News and media coverage
GDELT Project + Google News

Data freshness

Last updated
Jun 16, 2026
Registry checked
Jul 5, 2026
Profile completeness
85%

What we know and don't know

Exactly which public data we hold on this charity. Our score reflects transparency, not impact.

On record · 8
  • Financial data · FY2025 on record
  • Named leadership · 2 officers on file
  • Government registration · Registered with an official registry
  • Mission statement · Published
  • Official website · On record
  • Headquarters address · On file
  • Direct contact · Email or phone published
  • Tax-deductibility · Verified
Not available · 3
  • Executive pay
    Top-officer pay not disclosed
  • Programs & activities
    No named programs listed by the charity
  • Founding date
    Year founded not on file

Methodology

GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.

Read full methodology

Are you the owner or a board member?

If you represent this organization and want to correct or update its data, you can claim this listing to edit details yourself, or email [email protected] with the correct information. We review every request and respond within 30 days.

Quick facts about Trombosestichting Nederland

What is Trombosestichting Nederland?
Trombosestichting Nederland is a health nonprofit organization based in Voorschoten, Netherlands. Every hour 11 people get a thrombosis! For example in a leg, abdomen or lungs. Every day, no less than 3 people die. Read more >
Where is Trombosestichting Nederland located?
Headquartered in Voorschoten, Netherlands.
What is Trombosestichting Nederland's annual budget?
Annual revenue for fiscal year 2025 is approximately €1M-€10M. 79% of expenses go to program services.
Is Trombosestichting Nederland trustworthy?
Trombosestichting Nederland has a GiveRadar Integrity Assessment of 80 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Trombosestichting Nederland's registration number?
Registration: 803203755 (Netherlands).
What is Trombosestichting Nederland's website?
http://www.trombosestichting.nl
Are donations to Trombosestichting Nederland tax-deductible?
Donations may be tax-deductible for residents of Netherlands under local rules. US donors should check whether the charity has an equivalency-determination letter or a US-based fiscal sponsor before claiming a deduction.