The defense industry of Serbia is the largest in the Western Balkans. Serbia's export of weapons and military equipment in 2021 was valued at $1.23 billion (€1.13 billion).[1] It consists of around 200 companies, both public and private, working in many different fields. Serbian defense companies closely cooperate with the Military Technical Institute, country's top-level military scientific research institution, in developing new weapons, as well as with Serbian Armed Forces' Technical Testing Center, using its services for testing of new defense products. Universities and colleges in Serbia also participate through various contracts with the companies.