Independent, non-corporate, non-NGO investigative reporting sources

Good question. Here are some independent, non-corporate, non-NGO investigative reporting outlets (or very close to that — many are nonprofit journalism orgs). Some are global, others national or regional. (Note: “non-NGO” is tricky, because many investigative newsrooms are legally structured as nonprofits; I interpret your “non-corporate, non-NGO” to mean “independent journalism outlets not owned by a large media conglomerate or embedded in government/charity machinery.”)

Here’s a list, with a short description of each:

1. ProPublica — One of the leading nonprofit investigative newsrooms in the U.S., focused on exposing abuses of power. (absurditymirror.com)
2. International Consortium of Investigative Journalists (ICIJ) — Global network of investigative journalists working cross-border on major investigations. (Wikipedia)
3. Correctiv — German nonprofit investigative newsroom. (Wikipedia)
4. The Reporter (Taiwan) — Independent nonprofit investigative news outlet in Taiwan. (Wikipedia)
5. iStories (Important Stories) — Russian independent investigative site. (Wikipedia)
6. RISE Moldova — Investigative reporting NGO from Moldova/Romania. (Wikipedia)
7. CIReN (Cyprus Investigative Reporting Network) — Part of GIJN; independent investigative journalism platform in Cyprus. (GIJN)
8. Republik — A Swiss independent, reader-owned, ad-free investigative media cooperative. (GIJN)
9. The Bristol Cable — Community-owned cooperative in Bristol (UK), with investigative local journalism. (Wikipedia)
10. Slidstvo.Info — Ukrainian nonprofit investigative organization, member of OCCRP. (OCCRP)
11. Cuestión Pública — Investigative journalism outlet in Colombia. (OCCRP)
12. Mexicanos Contra la Corrupción y la Impunidad (MCCI) — Mexican independent investigative reporting organization. (OCCRP)
13. Quinto Elemento Lab — Mexican non-profit investigative journalism outlet. (OCCRP)
14. OjoPúblico — Peruvian investigative digital media outlet, covering corruption, rights, environment. (OCCRP)
15. Mediapart — French independent, reader-funded investigative online newspaper. (Wikipedia)
16. Investigative Reporting Workshop (IRW) — Based at American University; nonprofit newsroom. (Wikipedia)
17. Bellingcat — Independent collective doing open-source investigations. (Reporters Without Borders)
18. Lighthouse Reports — Investigative outlet (highlighted by One World Media). (One World Media)
19. The Bureau of Investigative Journalism (TBIJ) — U.K.-based investigative journalism nonprofit. (Mentioned by One World Media.) (One World Media)
20. Rappler — A Philippine independent media outlet that does investigative reporting. (Also mentioned by One World Media.) (One World Media)