Hannu Juhani Leinonen

Destia Oy engages in the provision of infrastructure and construction services. It offers road construction, foundation and field engineering, engineer construction, rock construction, energy infrastructure, railways, maintenance, aggregates, design, and road network surveys. The company was founded on February 14, 2007 and is headquartered in Vantaa, Finland.

Keskinäinen Eläkevakuutusyhtiö Ilmarinen (Ilmarinen), also known as Ilmarinen Mutual Pension Insurance Co., is an independent Finnish pension insurance firm which was founded in 1961 by Finland’s largest insurance companies and six smaller insurers. Headquartered in Helsinki, Ilmarinen provides pension advisory services and pension insurance services to employees, self-employed persons and company pension funds.

Onninen Oy provides material and information flow solutions to contractors, industry, public organizations, technical product retailers, and suppliers. It offers online and OPAL and contact information, electrical, ventilation, air condition and refrigeration, lighting, cables and utility, telecom, bathroom and kitchen and tools, fasteners and personal protection products. The firm also provides e-commerce, logistics, and project services. The company was founded by Alfred Onninen in 1913 and is headquartered in Vantaa, Finland.

Destia Group Oyj provides infrastructure and construction services. The firm builds, maintains, and designs traffic routes and paths, as well as traffic and industrial environments. Its services span the underground construction of a land-based activities, energy, and engineering construction. The company was founded in July 2014 and is headquartered in Vantaa, Finland.

Havator Group Oy provides lifting, special transport, and heavy haulage solutions. It also offers assembly and project services. The company was founded by Ahti Hanhirova in 1956 and is headquartered in Tornio, Finland.