TI “receives funding from a range of donors, including government agencies, multilateral institutions, foundations, the private sector and individuals”. (TI: Who we are, How we are funded, Funding and Financials, undated)
A detailed list of supporters can be found here: https://www.transparency.org/en/the-organisation/who-supports-us
TI’s financial statements for the year ended December 2020 can be found here: https://files.transparencycdn.org/images/TI-S-financial-statements-as-of-31-Dec-2020.pdfScope of reporting:
Thematic focus: TI’s two main priorities are ending the abuse of power and impunity for the corrupt as well as closing down systems that allow corruption schemes to thrive. (TI, What we do, Our priorities, undated) Other priorities include, for example, asset recovery and the theft of public money, business integrity and land corruption. For a full list of all priorities, see: https://www.transparency.org/en/our-priorities
Geographic focus: All countries
Most of TI’s reports provide information on the methodology used. The methodology varies according to the subject of each report. Some reports are mainly based on interviews (see, for example, TI: People's Experiences of Corruption: Implications for Business in South-East Asia, 2019, p. 32), others focus on desk-research of publicly available material such as laws and legal cases, official documents, media articles and specialised literature (see, for example, TI: Examining State Capture, December 2020, p. 8). Other reports prefer a more quantitative approach, accessing primarily “publicly available material” (such as websites) and complimenting the information with follow-up interviews (TI: Protecting Climate Finance, 2014, p. 7).