Aitor Pielcu Sociedad Limitada (formerly Aitor) is a Spanish company that specializes in manufacturing knives for consumer and military markets, particularly the Spanish police, army, and security forces. According to the company, Aitor Pielcu also provides equipment to the United Nations and UNESCO. Founded in 1939, Aitor was acquired by Grupo Pielcu in 2006, thereby forming Aitor Pielcu.