BioMed Central (BMC) is a United Kingdom-based, for-profit scientific publisher specialising in open access journal publication in the domains of Science, Technology and Medicine. BioMed Central and its sister companies Chemistry Central and PhysMath Central publish over 200 scientific journals. Most BioMed Central journals are now published only online. BioMed Central describes itself as the first and largest open access science publisher. It is owned by Springer Science+Business Media.