Tansa
Tansa is an independent, nonprofit, investigative newsroom based in Tokyo. Our investigations reveal - and aim thereby to end - wrongdoing by the powerful, such as government bodies …
GiveRadar doesn't take a cut. Donate directly on their site.
Make your donationAbout Tansa
Tansa is an independent, nonprofit, investigative newsroom based in Tokyo. Our investigations reveal - and aim thereby to end - wrongdoing by the powerful, such as government bodies and corporations. We approach our work by considering what needs to change in order to achieve redress for injustice and ensure that others are not harmed by similar wrongdoing in the future. In 2023, Japan ranked 68th in Reporters Without Borders' World Press Freedom Index. The country's major media organizations, prioritizing their own business interests, often fail to sufficiently monitor power or to speak up for the victims of its abuses. We believe independent, investigative journalism is essential for the Japanese public. As governments, corporations, and criminals increasingly work across borders, so …
Mission
Tansa is an independent, nonprofit, investigative newsroom based in Tokyo. Our investigations reveal - and aim thereby to end - wrongdoing by the powerful, such as government bodies and corporations. We approach our work by considering what needs to change in order to achieve redress for injustice and ensure that others are not harmed by similar wrongdoing in the future. In 2023, Japan ranked 68th in Reporters Without Borders' World Press Freedom Index. The country's major media organizations, prioritizing their own business interests, often fail to sufficiently monitor power or to speak up for the victims of its abuses. We believe independent, investigative journalism is essential for the Japanese public. As governments, corporations, and criminals increasingly work across borders, so too must the journalists who investigate them. In 2018, Tansa became Japan's first official member of the Global Investigative Journalism Network (GIJN), which is comprised of 244 independent, nonprofit media organizations in 90 countries.
Focus areas & reach
· What they work on and whereHow it stacks up against peers
· vs. 8 similar advocacy & civil rights in JapanRed flags
· All clearCommon questions
· Auto-generated from filings + methodologyTansa is a registered advocacy & civil rights nonprofit based in Minato-ku, Tokyo, Japan. It is registered with the Cabinet Office NPO Portal. It has a GiveRadar Integrity Assessment of 27/100 (Limited data available). This reflects limited public data, not concerns about the organization. This is below the average of 57/100 for advocacy & civil rights charities in Japan.
Tansa has a GiveRadar Integrity Assessment of 27/100. 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 27 ('Limited data available') reflects limited public data, not concerns about the organization. This is common for smaller, newer, or non-US charities that file fewer public records. For comparison, the average integrity assessment for advocacy & civil rights charities in Japan is 57/100.
Tansa is located in Minato-ku, Tokyo, Japan. Its registered address is 2-2-15 Hamamatsucho, Japan.
Tansa is classified as a Advocacy & Civil Rights organization, registered in Japan.
Tansa has a GiveRadar Integrity Assessment of 27/100. We recommend reviewing the full profile before making a donation decision. The organization is overseen by the Cabinet Office. 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.
Tansa is an independent, nonprofit, investigative newsroom based in Tokyo. Our investigations reveal - and aim thereby to end - wrongdoing by the powerful, such as government bodies and corporations. We approach our work by considering what needs to change in order to achieve redress for injustice and ensure that others are not harmed by similar wrongdoing in the future. In 2023, Japan ranked 68th in Reporters Without Borders' World Press Freedom Index. The country's major media organizations, prioritizing their own business interests, often fail to sufficiently monitor power or to speak up for the victims of its abuses. We believe independent, investigative journalism is essential for the Japanese public... Tansa is classified as a advocacy & civil rights organization registered in Japan.
Among advocacy & civil rights charities registered in Japan: Tansa's GiveRadar Integrity Assessment of 27/100 is below the peer average of 57/100.
Tansa is registered in Japan. Donations to certified NPOs and specified public interest corporations are eligible for a tax credit of approximately 40% of the donation (minus 2,000 yen), or an income deduction. The organization must hold certified NPO status from the National Tax Agency.
Verified against 3 official sources, last refreshed .
Data will be fetched automatically when available from public sources.
See 5 years of revenue, expense breakdowns, and balance sheet.
Sign up to viewTaxes
Tax-deductibility for donors
Donations may be tax-deductible for residents of Japan under local rules. Confirm with the charity directly.
Tansa is registered in Japan. Donations from the Netherlands to charities outside the EU/EEA are generally not tax-deductible for Dutch donors unless the charity is listed on the Dutch ANBI register with foreign-recognized status.
Tansa is registered in Japan. US donors generally cannot deduct gifts to non-US charities directly. To claim a deduction, route the gift through a US 'Friends of' fiscal sponsor or a donor-advised fund that performs equivalency determination (IRS Rev. Proc. 92-94).
Always confirm tax treatment with the charity directly or your tax advisor before donating.
We check government filings and charity disclosures quarterly. If you represent this charity, claim this page to add officers directly.
Latest news
From global news sources
10 articles found
From global news sources
Sentiment
Neutral「加害者は普通の人生送るのに…」 ハッキングで下着の購入履歴まで拡散 被害を語る理由は「今止めないと」 - Tansa
「貧困ジャーナリズム賞」東京新聞キャンペーン「スキマバイトの隙間」取材班に 「桐生市事件」出版には特別賞：東京新聞デジタル - 東京新聞デジタル
旧統一教会の内部文書『TM特別報告書』 3,000ページ超の報告書から見えてきたものとは？旧統一教会と政治の関係とは？ - tbsradio.jp
【異端・カルト110番】 「TM特別報告書」を日本語解説付きで公開 探査報道専門メディアTansa 韓国のニュースタパと共同取材 2026年2月17日 - kirishin.com
日本のメディア業界で「権力の外側」に立ち続ける渡辺周に米紙が注目 | 【社会・報道部門】2025年に世界が注目した日本人100 - クーリエ・ジャポン
権威と戦う日本の調査報道メディア「Tansa」にNYタイムズが注目 | 強制不妊、PFOA汚染…スクープ連発 - クーリエ・ジャポン
元気の本命「タンサ脂肪酸」など 腸テクシリーズ 4月8日順次発売 - PR TIMES
食べても太りにくい体質づくりを 知っておきたい「タンサ脂肪酸」の健康効果とは？ - 読売新聞
「アンサーは、タンサ。」太りにくいカラダづくりをサポートするタンサ(短鎖)脂肪酸 綾瀬はるかさんがその魅力を軽やかに歌い上げる！ - PR TIMES
住民への補償明記の協定を発見／ダイキンは「摂津市から要請があれば協議」、摂津市は・・・(26) - Tansa
Activity timeline
Filings and press mentions, merged
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 reviewPeer charities
Other advocacy & civil rights in Japan, by integrity assessment
Sources and verification
Refreshed
- Registration and legal identity
- Cabinet Office NPO Portal
- News and media coverage
- GDELT Project + Google News
- Supplementary verification
- GlobalGiving partner directory
Data freshness
What we don't know
Honest gaps - our score reflects transparency, not impact
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 methodologyReport an issue
Tell us what's wrong with this charity's page. We review every report and typically reply within 2 business days.
Report sent
Thanks for flagging this. Our team will review it.
Press Esc to close
Save Tansa?
Create a free GiveRadar account to save charities and track them in your dashboard.
Quick facts about Tansa
- What is Tansa?
- Tansa is a advocacy & civil rights nonprofit organization based in Minato-ku, Japan. Tansa is an independent, nonprofit, investigative newsroom based in Tokyo. Our investigations reveal - and aim thereby to end - wrongdoing by the powerful, such as government bodies and corporations. We approach our work by considering what needs to change in order to achieve redress for injustice and ensure that others are not harmed by similar wrongdoing in the future. In 2023, Japan ranked 68th in Reporters Without Borders' World Press Freedom Index. The country's major media organizations, prioritizing their own business interests, often fail to sufficiently monitor power or to speak up for the victims of its abuses. We believe independent, investigative journalism is essential for the Japanese public. As governments, corporations, and criminals increasingly work across borders, so too must the journalists who investigate them. In 2018, Tansa became Japan's first official member of the Global Investigative Journalism Network (GIJN), which is comprised of 244 independent, nonprofit media organizations in 90 countries.
- Where is Tansa located?
- Headquartered in Minato-ku, Japan.
- Is Tansa trustworthy?
- Tansa has a GiveRadar Integrity Assessment of 27 out of 100 (Limited data available). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
- Are donations to Tansa tax-deductible?
- Donations may be tax-deductible for residents of Japan 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.