The SBU said this in a statement seen by Ukrinform.
The SBU uncovered the owners of a group of industrial companies based in the Kyiv region that supplied Russia's Investigative Committee with materials used to set up anti-drone protection, according to the statement.
The investigation found that the group consists of an extensive network of 39 Ukrainian companies engaged in the production of roofing and facade products.
According to investigators, the group's actual owners are a Ukrainian businessman and his son, who moved to Russia before the start of the full-scale invasion.
The younger suspect controls two more companies in Belgorod and Reutov, which effectively operate as branches of the suspects' Ukrainian business structure, the SBU said.
The investigation established that, under his management, both companies in Russia manufacture metal structures. One of the contracts carried out by these companies involves supplying anti-drone nets for the Russian Investigative Committee.
In addition, according to the SBU, the suspects have been actively financing Russia's armed aggression by paying taxes to the Russian budget and making direct investments in Russia's military-industrial complex.
The SBU said the suspects first transferred profits from their Ukrainian businesses to offshore companies controlled by them and registered to nominal owners. They then carried out foreign-currency transactions to the accounts of Russian companies under their control.
SBU officers documented the scheme and detained the senior suspect in Kyiv, while his son is hiding in Russia.
SBU investigators notified the detained man of suspicion under Part 1 of Article 111-2 of the Criminal Code of Ukraine, concerning aiding an aggressor state.
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The suspect is being held in custody without the right to bail. Authorities also plan to seize all of his accounts and property in Ukraine, including 30 apartments, 20 parking spaces and 29 vehicles of various makes.
The son's actions were also classified as aiding an aggressor state, and he was notified of suspicion in absentia.
As the suspect is currently in Russia, comprehensive measures are underway to bring him to justice.
In May 2026, law enforcement officers exposed a Kherson Regional Council deputy who, according to investigators, had organized agricultural business operations in the temporarily occupied part of the region in Russia's interests with the assistance of three businessmen.
Photo credit: SBU