The GLES collects a wide range of data for German federal elections, as well as between German federal elections. This includes studies of both eligible voters and candidates. Below is a brief overview of the data currently collected or soon to be collected by the GLES.
| Study Title | ZA-Number | Data Collection Period | Pre-Release of Questionnaires | Data Release |
| GLES Panel, Control Group I to Wave 17 | ZA7718 | 07.07.2021 - 20.07.2021 | not yet available | |
| GLES Candidate Study European Elections 2024 | ZA7960 | 10.06.2024 - 25.09.2024 | German (856 kB) | Spring/Summer 2025 |
| GLES Tracking October 2024, T59 | ZA7958 | 09.10.2024 - 18.10.2024 | German (1.04 MB) | Spring 2025 |
