Flaxwood is a Finnish manufacturer of guitars and instrument parts based in Heinävaara, North Karelia. The company produces the instruments from a natural fibre-reinforced thermoplastic through a patented injection moulding process. Flaxwood was founded in 2005 following a research project on natural fibre-reinforced thermoplastic composites led by Heikki Koivurova. A prototype was developed initially in 2003 with the design input of luthier Veijo Rautia and two years later Flaxwood introduced their first line of guitars. In 2011, they released a line of hybrid guitars.