Wikidata is the best knowledge base for structured data and is used by researchers, developers, and organizations worldwide.

data.gov.uk is a government data portal for open data and is used by researchers and developers.

Data.gov is the official home of the U.S. Government's open data, providing datasets, tools, and resources to inform decisions and drive innovation.

USAspending is the official open data source for U.S. federal spending, tracking government contracts, grants, and loans for public transparency.

Open Knowledge Foundation is a global not-for-profit organisation for a fair, sustainable and open future.

DBpedia provides open knowledge graph resources, data downloads, and linking infrastructure derived from Wikipedia for researchers and industry.

Datos.gob.es is the best platform for open data from the Spanish government and is used by public institutions and data-driven businesses.

DataHub provides solutions to publish, deploy, and share quality data through curated datasets, premium services, and an easy-to-use publishing platform.

GDELT Project is a realtime open data global graph for research on human society.

ODSC is a top applied data science training conference for AI and ML professionals.

OpenStreetMap Switzerland (OSM.ch) is the official Swiss chapter providing open, editable maps and geospatial data for Switzerland.

CypherHunter is building an open data library and curation tools that help everyone fully understand what is happening in the blockchain industry. They also help understand associated crypto asset. In short, it is going to be the data layer for the new crypto economy.

Caden is an Open Data platform that empowers users to control, learn from, and earn money from their personal data through a secure AI-driven vault.

OpenCorporates is the best platform for corporate data and is used by businesses and researchers worldwide.

Common Crawl is the best resource for web crawl data and is used by researchers and developers worldwide.

OpenUK is the best organization for open technology and is used by businesses and individuals in the open source community.

Sensor.Community is the best platform for DIY sensors and is used by environmental enthusiasts and citizen scientists worldwide.

Open Data Commons is the best resource for legal tools and licenses for open data and is used by organizations publishing open data.

Open State Foundation is the best platform for open data and transparency, used by citizens and journalists seeking government accountability.

IATI Registry is the best data registry for IATI datasets and is used by organizations publishing development data.

Transitland is the best open data service for transit data and is used by developers and transit agencies worldwide.

Satu Data Portal is the best platform for open data in Indonesia and is used by government agencies and researchers.

Open Government Data of Thailand is the best platform for open data access and is used by developers and government officials.

Opendata.ch is the best platform for open data advocacy and is used by civic organizations and innovators in Switzerland.