National Bank of Ukraine (NBU)

State Statistics Service of Ukraine

Stock Market Infrastructure Development Agency of Ukraine

Open Data Portal

E-data

World Bank

World Trade Organization (WTO) 

World Health Organization (WHO)

World Tourism Organization (UNWTO)

International Monetary Fund (IMF)

International Labor Organization (ILO)

International Association for Official Statistics (IAOS)

International Organization for European Economic Cooperation (OECD)

United Nations Conference on Trade and Development (UNCTAD)

UNESCO

Economic Freedom (Fraser Institute)

European Commission Eurostat 

re3data.org is a registry of research data repositories 

Alpha Vantage is a leading provider of free APIs for realtime and historical data on stocks, forex (FX), and digital/crypto currencies

UNData is search engine lets you download data from United Nations statistical resources

Knoema is a global data source that allows users to find, visualize, model, and present their own and global data to facilitate decision-making

KDnuggets is largest data mining portal

Kaggle is an online community of data scientists and machine learners, owned by Google LLC

BASE is search data and scientific information

texty.org.ua Ukrainian analytical online publication combining classic and data journalism