Carl Schlieper was a German hardware manufacturing business established in Remscheid, Germany in the 18th century. Products produced by the company include tools, steel safes, locks, charcoal, heavy machinery, bathroom fixtures, and coffee grinders. After World War II the business was scaled down to focus on cutlery. The company operated in the Dutch East Indies and had pavilion at the Colonial Exhibition of Semarang in 1914. The company also operated in Batavia, Dutch East Indies, including as a supplier of hardware for the Engineering Corps. The company is known for its "Eye Brand" knives.