Gunner Lind. Early military industry in Denmark-Norway, 1500–1814. In the Scandinavian Journal of History 38(4) · September 2013. :
https://www.researchgate.net/publication/262870493_Early_military_industry_in_Denmark-Norway_1500-1814

From the 16th to the 18th centuries, the Danish-Norwegian state sponsored the development of military industry essentially capable of covering all needs of the army and navy. Most establishments continued into the 20th century. This industry was concentrated in Denmark, despite the generally more favourable industrial environment in Norway. The military industry was, however, tightly integrated with the military itself and thus located within reach of the main base in Copenhagen. Despite the importance of private management and, increasingly, private ownership, the industry existed as a spinoff, dependent on the expertise of officers as well as the custom of the army and navy.