Sif Holding NV engages in the manufacturing of metal structures, parts of metal structures, pipes, pipe structures, components for the offshore industry and foundation piles for offshore wind farms. It operates through the following segments: Wind, Oil and Gas, and Other. The Wind segment produces and delivers monopiles and transition pieces for windmill foundations. The Oil and Gas segment involves the production and delivery of piles and piles sleeves. The other segment consists of not Wind or Oil and Gas. The company was founded on June 4, 1974 and is headquartered in Roermond, Netherlands.