- Access Info Europe
- Barometr Ryzyka Nadużyć
- Boost Initiative, World Bank
- Cambridge Big Data Strategic Research Initiative
- Center for Open Data Enterprise
- Data Portals
- data.gouv.fr
- Data.gov.uk Opening up Government
- Dataportaal van de Nederlandse overheid
- dati.gov.it I dati aperti della Pubblica Amministrazione
- Dati.Piemonte.it
- eGovernment4EU
- el.vis
- European Union Open Data Portal
- Freedom of Information Platform Germany
- Lobbying Transparency WG
- Mapping Media Freedom
- OffenerHaushalt
- Open Bilanci
- Open Civitas (Italy)
- Open Data for Development (OD4D)
- Open Data Impact Map
- Open Data in Europe and Central Asia (ODECA)
- Open Government Data
- Open Government Partnership
- Open Ownership Register
- Open Product Data WG
- Open Public Procurement – Slovac tenders since 2009
- Open Spending WG
- OpenCorporates
- OpenTED Insight into European Tenders
- Paris Data
- Soldi Publici
- Tendertracking.eu
- Where Does my Money go?
- Barometr Ryzyka Nadużyć
- Farm Subsidy
- Local Government Procurement Network (UK)
- Open Public Procurement – Slovac tenders since 2009
- OpenTED Insight into European Tenders
- PEPPOL – Pan-European Public Procurement Online
- PLAN – Procurement Law Academic Network
- Procurement Forum
- PublicSpending
- Sustainable Procurement Resource Centre
- Tendertracking.eu
- WTO Government Procurement
- Access Info Europe
- Article 19
- Digital Rights CSO
- Farm Subsidy
- Freedom House
- German Whistleblower Network
- Global Integrity
- Hermes Center for Transparency and Digital Human Rights
- Lobbying Transparency WG
- Mapping Media Freedom
- Open Civitas (Italy)
- Open Contracting Partnership
- Open Data in Europe and Central Asia (ODECA)
- Open Government Partnership
- Strengthening Journalism in Europe: Tools, Networking, Training
- Tendertracking.eu
- UEAPME (Union Européenne de l’Artisanat et des Petites et Moyennes Entreprises)
- Where Does my Money go?
- Whistleblower Netzwerk.de
- Whistleblowing International Network
