Helsingfors Skeppsdockas Aktiebolag was a shipbuilding company that operated out of Hietalahti shipyard in Helsinki, Grand Duchy of Finland, between 1865 and 1894. The company was founded in 1865 by industrialist Adolf Törngren, who fell under financial difficulties during construction work. The ownership was transferred to Tampere Linen and Iron Industry, which had to complete the investments totalling over one million Finnish marks. The company built an over 90 metres long dry dock and a number of workshops. The dock was used for repairs and newbuilding projects, and the workshops produced various machinery parts and consumer products.