| EPP | S&D | ALDE | G/EFA | ECR | EFDD | GUE/NGL | NI |
| 221 | 191 | 67 | 50 | 70 | 48 | 52 | 52 |
| 27 countries | 28 countries | 21 countries | 17 countries | 15 countries | 7 countries | 14 countries | 10 countries |
Now, many of those new MEPs are seeking to join political groups to strengthen their voice in the Parliament, while a battle goes on between the groups to attract new members that help ensure their survival and maximise their influence, speaking time and funding.
One new group – the European Alliance for Freedom – has also been mooted as a way to bring together anti-EU parties on the radical right. To form this and other groups, a minimum of 25 MEPs are needed, representing at least seven member states.
At the same time, other parties are considering changing groups or allying themselves to a group for the first time.
Take a look at our table listing the parties up for grabs, based on the vast array of information from intelligence we have gathered and media reports – and contribute via the button below or the comments box at the bottom of the page.