JM AB is a Stockholm-based property development company specializing in residential housing projects across Sweden and the Nordic region. Founded in 1945 by builder John Mattson, the company initially operated as a contractor before focusing on large-scale housing developments for various clients in and around Stockholm. Over the years, JM expanded into Norway, Denmark, Finland, and Belgium, solidifying its position as one of the leading residential project developers in the Nordics.
Headquartered in Solna, JM AB recorded over 2,000 employees at the end of the 1990s and maintained building rights for approximately 24,000 residential units, with half concentrated in Stockholm. The company’s activities involve acquiring undeveloped or underutilized land and transforming it through new construction or conversion into housing, offices, and public environments. JM also operates subsidiaries for specialized services such as civil engineering and property management.
Recent years have seen JM AB undertake notable projects such as urban housing developments in Uppsala, Linköping, and new neighborhoods in Stockholm. The company emphasizes efficient land use and accessibility, often collaborating with municipalities on multi-purpose residential and commercial spaces. As of 2024, the majority of JM’s operations and revenue remain within Sweden, although expansion into other Nordic countries continues.
JM AB is publicly listed and is primarily owned by institutional investors such as AMF Fonder AB. Despite shifts in the property market, the company remains focused on developing sustainable neighborhoods and urban environments throughout the region.