[6] He is known for having initiated the renovation of the decayed Alexis Palace as a music school and for having performed at the ruins of Palmyra a month after the site was reconquered from the ISIL.

[14] In connection with the Panama Papers, the Organized Crime and Corruption Reporting Project described Roldugin as the "secret caretaker" of Putin's hidden wealth through his participation in transactions with Mossack Fonseca and Dietrich, Baumgartner & Partner, who are Swiss lawyers in Zurich, to various offshore companies including Panama registered International Media Overseas, British Virgin Islands (BVI) registered Sonnette Overseas, Sunbarn Ltd and Sandalwood Continental, and the BVI registered Ove Financial Corp.[10][15][16][17][18][19][20] In September 1992, Nikolai Egorov, who is closely associated with Ilham Rahimov and the Antipinsky Refinery, co-founded the company CJSC JV "Petrointeroil" (Russian: АОЗТ/ЗАО СП "Петроинтеройл") together with Sergey Roldugin, Nikolay Khrameshkin, Vladimir Dmitrievich Yakovlev, Andrey Bulutanov and the other co-founders: the Swedish company Arne Larrson & Partners, Kronstadt Terminal JSC, Tyumenpetroleum JSC, the Baltika Trading House, and St. Petersburg Intertrade LLP (SPb Intertrade) (Russian: ТОО "Санкт-Петербург Интертрейд" ("СПб Интертрейд")), which Egorov founded in January 1992 placing Andrey Bulutanov as general director and gave Egorov a 17% stake with the controlling 50% stake held by the Vladimir Putin headed and Saint Petersburg based Mayor's Committee on Foreign Relations.

[21] In 2008 under Sergey Skvortsov's leadership, Troika Dialog spearheaded the alliance of AvtoVAZ-Renault-Nissan and the partnership among KAMAZ OJSC, Daimler AG Concern and Rostec.

[36] Vladimir Milov, who is an active opposition figure, has been declared a "foreign agent" by Russian authorities, and is a former deputy energy minister during President Putin’s first term, stated, "This package was clearly worth much more, by many orders of magnitude.

[36] Later, in 2010, Abramovich sold his Video International stake of 12.5% held by Finoto Holdings for $20 million to Med Media Network, which is nominally owned by Sergei Roldugin, and sold his Video International stake of 12.5% held by Grosora Holdings for $20 million to Namiral Trading Ltd, which was later associated with Alexander Plekhov (Russian: Александр Плехов) who often acts in Rodulgin's interests.

[36][35] Plekhov's firms the Cyprus registered Namiral Trading Ltd and the British Virgin Islands registered Norma Group Ltd own a combined stake of 20% in Video International and have accounts with Gazprombank in Zurich, Switzerland, which often supports the interests of Rossiya Bank through the Swiss law firm Dietrich, Baumgartner & Partners which is located in Zurich as well.

[43][44] According to Andrei Soldatov, the 3 April 2016 release of the Panama Papers, which is known in Russia as OffshoreGate (Russian: "Офшоргейта"), and, in particular, information about Roldugin's nearly $2 billion in assets, which are closely associated with Vladimir Putin's assets, directly led to a quid pro quo or a tit for tat with Putin ordering hacks of Hillary Clinton, her party and others to support Donald Trump's 2016 Presidential campaign and his party.

[45][46][47][48][49][50][51][52][a][b] Dmitri Alperovitch, one of the founders of CrowdStrike, stated, "They ([hackers]) cast a wide net without knowing in advance what the benefit might be," and Andrei Soldatov said, "It was a series of tactical operations.

[57] Early in March 2023, four Gazprombank Switzerland employees in Zurich were put on trial for the help provided to Roldugin to evade money laundering laws, prior to 2016 and found guilty.

For the first time any allegations against Sergei Roldugin found legal ground and a court recognized that he did not act in his own interest.