| Austria | WIFO | WIFO | IPSOS GmbH | WIFO | WIFO |
| Belgium | BNB-NBB | BNB-NBB | BNB-NBB | BNB-NBB | BNB-NBB |
| Bulgaria | NSI | NSI | Logo Research | NSI | NSI |
| Croatia | IPSOS | IPSOS | IPSOS | IPSOS | IPSOS |
| Cyprus | UCY
RAI | UCY
RAI | UCY
RAI | UCY
RAI | UCY
RAI |
| Czech Republic | CSO | CSO | Data Collect | CSO | CSO |
| Denmark | SD | SD | SD | SD | SD |
| Estonia | EKI | EKI | EKI | EKI | EKI |
| Finland | CFI | CFI | SF | CFI | CFI |
| France | INSEE | INSEE | INSEE | INSEE | INSEE |
| Germany | IFO | IFO | GfK | IFO | IFO |
| Greece | FEIR/IOBE | FEIR/IOBE | FEIR/IOBE | FEIR/IOBE | FEIR/IOBE |
| Hungary | GKI | GKI | GKI | GKI | GKI |
| Ireland | Bank of Ireland | Bank of Ireland | Bank of Ireland | Bank of Ireland | Bank of Ireland |
| Italy | ISTAT | ISTAT | ISTAT | ISTAT | ISTAT |
| Latvia | CSB | CSB | LATVIAN FACTS | CSB | CSB |
| Lithuania | SL | SL | SL | SL | SL |
| Luxembourg | STATEC | - | BCL | - | STATEC |
| Malta | MCCEI | MCCEI | EMCS | MCCEI | MCCEI |
| Netherlands | CBS | CBS | CBS | CBS | EIB |
| Poland | CSO | CSO | GfK | CSO | CSO |
| Portugal | INE | INE | INE | INE | INE |
| Romania | NIS | NIS | MERCURY | NIS | NIS |
| Slovakia | SOSR | SOSR | SOSR | SOSR | SOSR |
| Slovenia | SORS | SORS | SORS | SORS | SORS |
| Spain | MINTUR | - | - | - | MINTUR |
| Sweden | NIER | NIER | NIER | NIER | NIER |
| Albania | Bank of Albania | Bank of Albania | Bank of Albania | Bank of Albania | Bank of Albania |
| Montenegro | IPSOS | IPSOS | IPSOS | IPSOS | IPSOS |
| Republic of North Macedonia | IPSOS | IPSOS | IPSOS | IPSOS | IPSOS |
| Serbia | SORS | SORS | SORS | SORS | SORS |
| Turkey | CBRT | TurkStat
CBRT | TurkStat
CBRT | TurkStat
CBRT | TurkStat
CBRT |
