Early Career Scientists (ECSs) make up a large fraction of the High Energy Physics community and contribute to the scientific programmes across all projects and activities. In the experiments at the Large Hadron Collider, students alone compose about half of the scientific authors. All four large experiments--ALICE, ATLAS, CMS and LHCb--recognize the importance of the well-being and general satisfaction of the young researchers and its correlation with the performance of the collaboration as a whole. In recent years, boards representing ECSs were formed in each of the four collaborations. These boards consist of a diverse group of young scientists who meet regularly among themselves, gather feedback from the entire early-career community, advise the management in the best interests of the young physicists in the collaboration, and organize social events. This talk overviews the history of the LHC early-career boards, their recent activities, the feedback of the young communities, and the plans for the future.