BMC is a pioneer in open-access publishing and a champion of open science. Since its founding over 20 years ago, BMC has never wavered from its commitment to transparency and openness. At the time, open access publishing was far from the mainstream concept it is today. But we have always believed that the community should have free access to the published literature, and that the path to publication should be clear and transparent. We also know that as publishers, we serve the research community and we have always aimed to pioneer innovative approaches to peer review and publication, promote transparency and open research and deliver a fair, efficient and transparent peer review process. The ideals that have guided us throughout the years have become rallying points for the research community today, and we are proud of our history of openness.