Sergey Parkhomenko is Russian journalist, publisher, and founder of several projects aimed at developing civic activism and promoting liberal values in Russia.

Parkhomenko is a former political reporter, commentator and editorialist at popular daily newspapers; founder and first editor-in-chief (1995-2001) of 'Itogi', Russia's first current affairs weekly, published in cooperation with Newsweek; editor-in-chief of several publishing houses producing translated fiction and non-fiction literature; editor-in-chief of 'Vokrug Sveta', Russia's oldest monthly magazine.

Since August 2003 Parkhomenko has been presenting 'Sut' Sobytyi' ('Crux of the Matter') on Radio Echo of Moscow, a weekly programme making sense of the events of the past week.

Parkhomenko was instrumental in organizing mass rallies in Moscow in Winter 2011 – Spring 2012. He organized the 'Vse v sud!' ('Go to court!') a civic campaign helping people to file lawsuits against widespread election rigging. He is one of the founders of 'Dissernet' ('DissertationWeb'), a network community dedicated to exposure of dissertation plagiarism, and 'Posledny Adres' ('Last Address') civil campaign helping people to create a collective memorial dedicated to the victims of political repression in the Soviet Union and Russia. He is also one of the founders of 'Redkollegia' program, an independent award supporting free professional journalism in Russia.

Parkhomenko is a Public Policy fellow with the Kennan Institute at the Woodrow Wilson International Center for Scholars (Washington, DC), since September 2016 and a Visiting Scholar at The Europe Center of Freeman Spogli Institute for International Studies since March 2017.