Framnæs shipyard (Framnæs mekaniske Værksted) was a former Norwegian shipbuilding and engineering firm headquartered in Sandefjord, in Vestfold county, Norway. Originally strongly linked to the whaling industry, in later years it entered into more versatile shipbuilding, including rigs and modules for the offshore business. It was incorporated in 1898 and was closed down in 1986.
A/S Framnæs mek Værksted has its origins from three earlier shipyards.
Christen Christensen took over Rødsverven in 1868 and bought the other yards one by one. He started Sandefjord Flytedokker A/S in 1884. In 1892, he privately owned almost all of the properties that later became A/S Framnæs mek.Værksted. In the meantime, he also bought Kamfjordverven and Stubbverven. In order to finance the conversion of the yards to steel shipbuilding, Christensen reorganized the corporate structure of the yard in 1898, to a shareholders' company. Sandefjord Flytedokker was dissolved and the two docks sold. New docks were then built by the yard.
In 1816, sheriff, farmer, yard owner and ship owner Thor Aagessøn Klavenes (1767–1854) established a site for keelhauling, and later a shipbuilding berth at Framnes. The keelhauling site was situated in the area where the carpentry shop was later built, with the building berth located to the northeast. In 1832, his son Aake Torssøn Klavenes took over the management of the yard until his death in 1853. Thor was the main creditor and reassumed control of the company, until Henrik Klaveness (the eldest son of Aake Klaveness) took over in 1857. He sold it to Joseph Lyhmann four years later.
The owner, businessman and ship owner Joseph Lyhmann (September 18, 1825 – April 15, 1915) built in 1861 Lyhmanns mek Verksted approximately where the A/S Framnæs mek Værksted engine shop were located, northwest of today's Skagerrak middle and high schools.
Here, he started a machinery manufacturing business producing mainly agricultural machines such as threshing machines, chaff-cutters, plough equipment, and milling equipment, including Norway's first threshing machine. He also manufactured bicycles, which were claimed to be the first built in Norway. In addition, the business also made steamboats of steel. The company also produced steam engines, steam engines and equipment for sawmills, and boiling equipment for whaling.