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Deutsche Mathematiker- Vereinigung e.V.

Science & Technology Berlin, Berlin Sign up to see website
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57
Integrity Assessment
Partial transparency
57/100 · methodology

About Deutsche Mathematiker- Vereinigung e.V.

Tax-favoured organisation. Non-profit-making purposes: science and research.

Steuerbegünstigte Organisation. Gemeinnützige Zwecke: Wissenschaft und Forschung.

Translated from German by GiveRadar.

Founded
Headquarters
Berlin, Berlin
Foundation type
Registered association (Eingetragener Verein (e.V.))
Size
micro

Focus areas & reach

· What they work on and where

How it stacks up against peers

· vs. 8 similar science & technology in Germany
Integrity Assessment This charity: 57
Peer average: 63

Concerns

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

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

From what GiveRadar has verified so far, Deutsche Mathematiker- Vereinigung e.V. has a substantially complete profile, cross-referenced across 3 independent sources.

  • GiveRadar has verified financial records for only 1% of science & technology charities in Germany, and this is one of them. See national comparisons
  • Established in 1890, it is among the oldest charities in Germany GiveRadar tracks. View this cohort
  • GiveRadar holds a more complete profile for this organization than for 99% of the 9,746 science & technology charities in Germany it tracks, because GiveRadar has verified its governance and its contact details. Most of those have little verified data on record yet. View this cohort
GiveRadar has verified
  • financial records
  • disclosed leadership
  • a website
  • a contact email
  • a donation page
Not yet verified by GiveRadar
  • third-party accreditation
  • 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

Deutsche Mathematiker- Vereinigung e.V. is a registered science & technology nonprofit based in Berlin, Berlin, Germany. It is registered with the German Vereinsregister (Association Register). It was founded in 1890 and has been operating for 136 years. GiveRadar's Integrity Assessment for the organization is 57/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports €5K in annual revenue.

Deutsche Mathematiker- Vereinigung e.V. has a GiveRadar Integrity Assessment of 57/100. 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 57 ('Partial transparency') means some public data is on file but key signals are missing - worth a closer look before donating. For comparison, the average integrity assessment for science & technology charities in Germany is 63/100.

Deutsche Mathematiker- Vereinigung e.V. is located in Berlin, Berlin, Germany. The organization was established in 1890 and has been active for 136 years.

Based on official tax filings, Deutsche Mathematiker- Vereinigung e.V. has €5K in annual revenue. Its revenue is below the peer average of €24M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Deutsche Mathematiker- Vereinigung e.V. is classified as a Science & Technology organization, registered in Germany. It operates as an Eingetragener Verein (e.V.). By size, it is categorized as a micro organization. It has €5K in annual revenue.

According to GiveRadar's records, Deutsche Mathematiker- Vereinigung e.V. is registered with the German Vereinsregister (Association Register) and overseen by the local Amtsgericht (district court). 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.

Tax-favoured organisation. Non-profit-making purposes: science and research. Deutsche Mathematiker- Vereinigung e.V. is classified as a science & technology organization registered in Germany. The organization was founded in 1890.

Among science & technology charities registered in Germany: Its annual revenue of €5K is below the peer average of €24M.

Deutsche Mathematiker- Vereinigung e.V. is a registered nonprofit in Germany. Donations to recognized charitable organizations (gemeinnuetzige Organisationen) are tax-deductible up to 20% of your total income. You will need a donation receipt (Zuwendungsbestaetigung) from the organization for your tax return.

Deutsche Mathematiker- Vereinigung e.V. is an eingetragener Verein (e.V.) - a registered association, the most common legal form for nonprofits in Germany. An e.V. is a membership-based legal entity registered with the local Vereinsregister (association register) at the Amtsgericht (district court). Members govern the association through a general assembly (Mitgliederversammlung). Germany has over 600,000 registered associations. To qualify as 'gemeinnuetzig' (charitable), an e.V. must be recognised by the local Finanzamt (tax office) under the Abgabenordnung (AO). German nonprofits are listed in the Zuwendungsempfaengerregister (ZER), the federal register of tax-exempt donation recipients maintained by the Bundeszentralamt fuer Steuern (BZSt).

You can verify Deutsche Mathematiker- Vereinigung e.V.'s charitable status in several ways. First, check the Zuwendungsempfaengerregister (ZER) at https://www.bzst.de/DE/Unternehmen/Zuwendungsempfaengerregister_organisation/zuwendungsempfaengerregister_organisation_node.html - the BZSt maintains this federal register of all organisations eligible to receive tax-deductible donations in Germany. Second, you can look up the association in the Vereinsregister (association register) at the local Amtsgericht (district court) via https://www.handelsregister.de/ - this confirms the legal form, registered address, and board members. Third, check whether the organisation holds the Freistellungsbescheid (tax-exemption notice) from its local Finanzamt - the notice is re-issued every three years and confirms the 'gemeinnuetzig' status under the Abgabenordnung. Legitimate charities publish this on their website or provide it on request.

You can donate to Deutsche Mathematiker- Vereinigung e.V. directly through its donation page (https://www.mathematik.de/spenden). German charities typically accept SEPA bank transfer (Ueberweisung) to the organisation's IBAN, SEPA direct debit (Lastschrift/Einzugsermaechtigung) for recurring donations, PayPal, credit card payments, and online payment processors like Stripe or Mollie. Many German charities use platforms like betterplace.org, GoFundMe, or their own Spendenseite (donation page). International donors can give via SEPA transfer (Germany is in the eurozone) or PayPal. For your donation to be tax-deductible, you need a Zuwendungsbestaetigung (donation receipt) from the organisation - for amounts up to 300 euros, a bank statement showing the transfer is sufficient.

Deutsche Mathematiker- Vereinigung e.V. is based in Berlin, in Berlin, Germany's capital and largest city. Germany is a federation of 16 states (Bundeslaender). Charitable status ('Gemeinnuetzigkeit') is granted by the local Finanzamt and recognised nationwide - the organisation can solicit tax-deductible donations from donors anywhere in Germany.

Annual revenue
Under €10K
Source: BZSt (Germany) why this matters
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Taxes

Tax-deductibility for donors

German donations are deductible if Deutsche Mathematiker- Vereinigung e.V. holds a Freistellungsbescheid (recognition as a charitable purpose) and issues a Zuwendungsbestätigung receipt.

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

Leadership

Jörg L••••••
Secretary

Latest news

From global news sources

4 articles found

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

Activity timeline

Filings and press mentions, merged

Jürg Kramer wird neuer Präsident der Deutschen Mathematiker-Vereinigung - News4teachers
Nov 2024
www.news4teachers.de
Abiturpreis Mathematik ab sofort bei der Deutschen Mathematiker-Vereinigung online bestellbar - Informationsdienst Wisse
Feb 2022
nachrichten.idw-online.de
Deutsche Mathematiker-Vereinigung feiert 130-jähriges Bestehen Minkowski-Medaille als neuer Mathematik-Preis - idw – Inf
Feb 2020
nachrichten.idw-online.de
Mathematikolympiade: Acht Krefelder qualifiziert - Westdeutsche Zeitung
Dec 2019
www.wz.de

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Cause areas in Germany

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

Community Development 333,723
Education 91,396
Social Services 57,991
Arts & Culture 55,916
Health 33,744
International 29,261
Youth Development 20,117
Environment 16,305
Science & Technology this charity 9,746
See all cause areas in Germany

Most common causes in Germany

Causes charities work on most.

Community Development 66,182
Education 55,923
Foster Care 51,710
Arts & Culture 43,294
Eldercare & Aging 26,255
International Development 15,257
Health 14,436
Disability 13,265

Sources and verification

Registration and legal identity
Bundesanzeiger (German Federal Gazette)
Financial filings
Bundesanzeiger annual disclosures
News and media coverage
GDELT Project + Google News

Data freshness

Last updated
Jun 7, 2026
Registry checked
Jun 7, 2026
Profile completeness
60%

What we know and don't know

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

On record · 6
  • Financial data · Annual revenue figure on record
  • Named leadership · Lead officer named
  • Official website · On record
  • Headquarters address · On file
  • Direct contact · Email or phone published
  • Founding date · 1890
Not available · 5
  • Executive pay
    Top-officer pay not disclosed
  • Government registration
    No public registry ID
  • Mission statement
    No self-published statement of purpose
  • Programs & activities
    No named programs listed by the charity
  • Tax-deductibility
    Not verified

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 Deutsche Mathematiker- Vereinigung e.V.

What is Deutsche Mathematiker- Vereinigung e.V.?
Deutsche Mathematiker- Vereinigung e.V. is a science & technology registered association based in Berlin, Germany. Tax-favoured organisation. Non-profit-making purposes: science and research.
When was Deutsche Mathematiker- Vereinigung e.V. founded?
Deutsche Mathematiker- Vereinigung e.V. was founded in 1890.
Who leads Deutsche Mathematiker- Vereinigung e.V.?
Jörg Lehnert serves as Secretary.
Where is Deutsche Mathematiker- Vereinigung e.V. located?
Headquartered in Berlin, Berlin, Germany.
What is Deutsche Mathematiker- Vereinigung e.V.'s annual budget?
Annual revenue is approximately Under €10K.
Is Deutsche Mathematiker- Vereinigung e.V. trustworthy?
Deutsche Mathematiker- Vereinigung e.V. has a GiveRadar Integrity Assessment of 57 out of 100 (Partial 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 Deutsche Mathematiker- Vereinigung e.V.'s website?
https://www.mathematik.de/
Are donations to Deutsche Mathematiker- Vereinigung e.V. tax-deductible?
Donations may be tax-deductible for residents of Germany 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.