| Examples | |
| National | UK GDS Open Source Lead, France CIO/DINSIC |
| Multi-municipal | DK OS2, Norway Kongsberg, Belgium Imio |
| Municipality | Germany Mayor of Munich |
| Region | Basque Country CIO |
| Organisation | Online-Sicherheitsprüfung, Eurocontrol |
| Examples | |
| policies | United Kingdom |
| France | |
| Netherlands | |
| Spain | |
| Estonia | |
| lists | Sweden |
| ISA² projects | Sharing and Reuse Framework |
| EIF | |
| CAMSS |
| Examples | |
| Supreme Court SI | Leipzig DE |
| Gendarmerie FR | Vienna AT |
| LNEC PT | Fontaine FR |
| Schoten BE | Munich DE |
| Zaragoza ES | Arnhem NL |
| Aarhus DK | Basque Country ES |
| Examples | |
| Nantes FR | organises improvements to LibreOffice |
| GDS UK | give staff time to work on open source |
| Munich DE | contributor to open source projects |
| DINSIC FR | hackathons |
| Developers Italia IT | summer of code |
| Helsinki FI | require skills, in-house and suppliers |
| Amsterdam NL | 'Source code is policy executed by machines' |
| Kammarkollegiet SE | suppliers push code upstream |