Two of the three BiFab fabrication yards have been bought out of administration.
BiFab, which had two steel fabrication yards in Fife and the Isle of Lewis, went under last year after failing to secure any new contracts.
London-based firm InfraStrata is taking on sites at Methil in Fife and Arnish on Lewis, but not Burntisland.
It is hoped the yards can win contracts for offshore wind projects and shipbuilding under new ownership.
InfraStrata already owns the Harland and Wolff shipyard in Belfast and the two Scottish sites will operate under the Harland and Wolff brand name as part of the £850,000 deal.