Three companies, five production sites, one owner.
Each company runs its own operations and its own customer relationships. Together they cover the full range of mechanical production, each with the machinery for its part of it. KSMV makes large and complex components, some weighing several tonnes, in small series. Mandal Maskinering makes mid-sized components in medium volumes. Tore Olsen Gruppen makes small parts in series of thousands to tens of thousands.
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KSMV is one of Norway’s most advanced mechanical workshops, founded in 1918 and specialising in high precision machining, casting machining and mechanical services for the oil and gas and subsea industries. KSMV handle the full chain from machining, welding and plate work to assembly and testing, in materials from cast iron to Super Duplex, titanium and composites, with full traceability on every part.
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Mid-sized machined components in series production. The company has supplied engine components to the same customer since 1970, mainly for backup power systems that secure electricity supply, and this business is growing strongly. Mandal Maskinering also serves the oil and gas industry and other industrial customers, and is investing in new machining centres and automation to keep pace with demand.
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Small components in high volumes, produced as a subcontractor to industrial customers: milling and turning, robot welding and electrolytic surface treatment, typically in series of several thousand to tens of thousands of identical parts. Tore Olsen Gruppen has been part of Demano Group since November 2025 and consists of Tore Olsen Produksjon AS, Tekno AS, Maskinfabrikken Hamebo A/S and Verktøymakeren AS, which adds stamping and moulding tools and injection moulding of thermoplastics.
Read more at toreolsen.no and verktoymakeren.no