Byggmästare Anders J Ahlström Holding AB (publ) invests in, owns, and develops listed and unlisted small and medium-sized companies in Sweden and rest of the Nordic region. The company also engages in the sale and rental of health-promoting products, such as defibrillators; provision of maintenance and fine planning of outdoor environments; and supplies and manufactures flexible printed circuit boards. In addition, it provides staffing and recruitment services for civil engineering sector; advertised media reach services; and support services for people with disabilities. Further, the company maintains, improves, and expands infrastructure. The company was founded in 1898 and is based in Stockholm, Sweden.