LINEup is based on a strong consortium of six countries – France, Germany, Greece, Italy, Portugal and Spain – with diverse expertise coming from a combination of research institutions, public authorities in charge of longitudinal data and national tests, and agencies/foundations working at school level. Researchers involved in the project are all experts of inequalities in education and include different profiles such as statisticians, experts in the field of demographic research and economics in education, sociologists, experts of educational processes and pedagogists. 

The partners and countries of the consortium, although pertaining to the same geographical region (Southern and Western Europe), ensure a good coverage of the situations existing across Europe regarding the collection and use of longitudinal data: 

• There are situations where it is possible to identify a national effort to systematically collect longitudinal data,
• Countries where longitudinal data is collected for specific age groups and often through national tests,
• Countries where longitudinal data is scattered, isolated or missing. 

This diversity gives a unique value to the consortium, in its ability to consider the situation of different countries for project results exploitation and for better linking research, policy and practice.