José Martínez Medina (JMM) is an author brand specialized in the production of furniture designed to share work and living spaces. JMM creates offices that are homes and homes that are offices, thanks to versatile furniture that eliminates barriers to sitting at work and at home.

This focus on coliving spaces has its greatest exponent in the Blacktone brand , the line that complements JMM in its most contract version , including collections created in collaboration with leading designers