The development and testing of military equipment in the Soviet Union was done by manufacturing plants working in collaboration with specialised design institutes
Some of the specialist institutes in the Soviet Union which developed and tested military vehicles were very well known, at least within the borders of the country that is.
They included the NAMI and NATI design institutes responsible for motor vehicle and tractor development respectively. Other institutes were involved in the development of specific types of equipment, including any type of imaginable military hardware from mine trawls to ballistic missiles.
Still, others were more directly involved in the testing and acceptance of equipment for service with the armed forces.