Charities Germany Science & Technology Deutsche Mathematiker- Vereinigung e.V.
DE

Deutsche Mathematiker- Vereinigung e.V.

Science & Technology Berlin Sign up to see website
Claim this charity
Ready to give?
100% goes to Deutsche Mathematiker- Vereinigung e.V.

GiveRadar doesn't take a cut. Donate directly on their site.

Make your donation
51
Integrity Assessment
Partial transparency
51/100 · 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
Foundation type
Registered association (Eingetragener Verein (e.V.))
Size
micro

Focus areas & reach

· What they work on and where
Science & Technology
Cause tags

How it stacks up against peers

· vs. 8 similar science & technology in Germany
Integrity Assessment This charity: 51
Peer average: 57

Red flags

· All clear
Tax-authority revocation
OFAC / EU / UN sanctions
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Common questions

· Auto-generated from filings + methodology

Deutsche Mathematiker- Vereinigung e.V. is a registered science & technology nonprofit based in Berlin, Germany. It is registered with the German Vereinsregister (Association Register). It was founded in 1890 and has been operating for 136 years. It has a GiveRadar Integrity Assessment of 51/100 (Partial transparency), indicating some public data is available but key signals are missing. The organization reports €5K in annual revenue.

Deutsche Mathematiker- Vereinigung e.V. has a GiveRadar Integrity Assessment of 51/100. 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 51 ('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 57/100.

Deutsche Mathematiker- Vereinigung e.V. is located in 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 a Eingetragener Verein (e.V.). By size, it is categorized as a micro organization. It has €5K in annual revenue.

Deutsche Mathematiker- Vereinigung e.V. has a GiveRadar Integrity Assessment of 51/100. We recommend reviewing the full profile before making a donation decision. The organization is 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 purposes and does not endorse any organization. Always do your own due diligence.

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: Deutsche Mathematiker- Vereinigung e.V.'s GiveRadar Integrity Assessment of 51/100 is in line with the peer average of 57/100. 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.

Verified against 3 official sources, last refreshed .

Annual revenue
Under €10K
Source: Bundestag Lobbyregister why this matters
Unlock exact figures
Financial details are free - with a GiveRadar account

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

Sign up to view
Already have an account? Log in
No credit card · Takes 20 seconds

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 Lehnert
Secretary

Latest news

From global news sources

10 articles found

From global news sources

Sentiment

Neutral

Activity timeline

Filings and press mentions, merged

Ausgezeichnete Abiturienten am Otto-Hahn-Gymnasium - Landau - Die Rheinpfalz
Mar 2026
www.rheinpfalz.de
KI: Warum Deutschlands Zukunft (entscheidend) von Mathe-Lehrkräften abhängt - News4teachers
Dec 2025
www.news4teachers.de
Millennium Festival - Universität Münster
Apr 2025
www.uni-muenster.de
Jürg Kramer wird neuer Präsident der Deutschen Mathematiker-Vereinigung - News4teachers
Nov 2024
www.news4teachers.de
Freiherr-vom-Stein-Schule verabschiedet Abiturienten - Osthessen|News
Jul 2023
osthessen-news.de
Lara Lemmermeier ist Jahrgangsbeste - Schwäbische Post
Jul 2023
www.schwaebische-post.de
Internationale Cartoon-Ausstellung am Comic-Schauraum - MENGEDE: InTakt!
Aug 2022
www.mengede-intakt.de
Freiherr-vom-Stein-Gymnasium Betzdorf: Preisträgerinnen und Preisträger - AK-Kurier
Apr 2020
www.ak-kurier.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

No reviews yet. Be the first to share your experience.

Have you donated or volunteered here?

Share your experience - it takes 30 seconds. Verified reviews help other donors decide.

Sign up to write a review

Sources and verification

Refreshed

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
Apr 21, 2026
Profile completeness
60%

What we don't know

Honest gaps - our score reflects transparency, not impact

Mission statement
No self-published statement of purpose
Programs & projects
No named programs listed by the charity
Tax-deductibility status
Whether donations are tax-deductible has not been verified
Operating reach
Countries where programs run not specified

Methodology

GiveRadar combines public registry filings, ProPublica Nonprofit Explorer, Charity Navigator, GuideStar, and news archives into a single 0-100 integrity assessment. We don't take a cut of any donation, ever.

Read full methodology

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, 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 51 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.