Progress Rocket Space Centre

Rocket and Space Centre "Progress" (Russian: Ракетно-Космический Центр «Прогресс», romanized: Raketno-Kosmicheskiy Tsentr "Progress"), commonly known as RKTs Progress (Russian: РКЦ Прогресс), is a Russian joint-stock company under Roscosmos. It is responsible for building and operating the Soyuz family of rockets, which serve as the primary launch vehicles for the Russian space program.

Source: Wikipedia — Progress Rocket Space Centre (CC BY-SA 4.0)