The Bulgars, a Central Asian Turkic tribe, merged with the local Slavic inhabitants in the late 7th century to form the first Bulgarian state. In succeeding centuries, Bulgaria struggled with the Byzantine Empire to assert its place in the Balkans, but by the end of the 14th century, the Ottoman Turks overran the country. Northern Bulgaria attained autonomy in 1878, and all of Bulgaria became independent from the Ottoman Empire in 1908. Having fought on the losing side in both World Wars, Bulgaria fell within the Soviet sphere of influence and became a People's Republic in 1946. Communist domination ended in 1990, when Bulgaria held its first multiparty election since World War II and began the contentious process of moving toward political democracy and a market economy while combating inflation, unemployment, corruption, and crime. The country joined NATO in 2004, the EU in 2007, and the Schengen Area for air and sea travel in 2024.

Space Research and Technology Institute - Bulgarian Academy of Sciences (SRTI-BAS; formed in 1987 but originated from the Central Laboratory for Space Research and the Bulgarian Aerospace Agency, which was established in 1969) (2024)

Has a long history of involvement in space-related activities going back to the 1960s; develops, produces, and operates satellites, mostly with foreign partners; researches, develops, and produces other space technologies, including those related to astrophysics, remote sensing, data exploitation, optics, and electronics; has specialized in producing scientific instruments for space research; has more than 20 research institutes; Cooperating State of the European Space Agency (ESA) since 2015; cooperates with a variety of foreign space agencies and commercial entities, including those of the ESA and EU (and bi-laterally with their member states), India, Japan, Russia, and the US (2024)