Ukraine's intelligence agency reveals data on Su-35S jets Russia uses to intercept Ukrainian drones and missiles

Defence Intelligence of Ukraine (DIU) has published information on 79 companies involved in the production of Russia's Su-35S multirole fighter jets.

Source: Components in Weapons section of the War&Sanctions portal

Quote: "These aircraft are primarily used by the enemy to provide cover for its Su-34 fighter-bomber strike groups, ground forces and facilities, to intercept Ukrainian UAVs and cruise missiles, and to counter the air defence systems of Ukraine's defence forces."

Details: Along with the list of companies, DIU published an interactive 3D model of the Su-35S.

The Ukrainian intelligence agency said the companies listed are involved in development work and the production of Su-35S engines and fuel systems, as well as control, communications, guidance and electronic warfare systems. They are also involved in producing the main aircraft-launched missiles used by Su-35S jets in Russia's war against Ukraine.

DIU added that 22 of the 79 companies are still not subject to sanctions imposed by any country in the sanctions coalition.

These include Aviation Corporation Rubin, which supplies aircraft braking and non-braking wheels, and PJSC Gidroavtomatika, which manufactures AU46-05 control units used in the aircraft's fuel system.

The list also includes Research Institute Oktava, which, according to DIU, carried out research and development work as part of the Su-35S programme.

"Synchronising sanctions efforts against all elements of Russia's military-industrial complex is an important part of creating the conditions for a just peace in Ukraine and restoring stability in the world," DIU stressed.

The Su-35S is a Russian multirole fighter developed by Sukhoi on the basis of the Su-27. Russia classifies it as a 4++ generation aircraft. It is equipped with thrust-vectoring engines and can carry both air-to-air and air-to-surface missiles.

Russian state-owned corporation Rostec previously claimed that it had delivered a new batch of Su-35S fighter jets to the Russian Aerospace Forces.

The delivery of a previous batch of Su-35S multirole fighters to the Russian military was reported in November 2025.

Background: Russia's tactical aviation suffered significant losses in 2025, although its overall fleet formally increased by the end of the year. Russia lost between 18 and 21 combat aircraft of this class over the course of the year.

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