As a businessman In 1993, he worked as a programmer in a branch of the Irkutsk Prospector Commercial Bank (by his admission, it was thanks to his mother's connections in the banking sector), where he reached the position of deputy director. At that time he also traded
MMM shares and opened several secondary trade shops. In 1996 he moved to
Rossiysky Kredit Bank, where he held a similar position until 2000. Since 2023, he reclaimed ownership of the company. In 1996 he founded the legal agency Yuragentstvo LLC. As of 2024, he owns 20 percent of the company. In June 2013, he became president of the Association for the Development of Electronic Commerce (ADEC), On December 22, 2015, Russian President Vladimir Putin approached German Klimenko with a proposal to become his advisor on Internet development. He was appointed to this position on January 4, 2016, and on June 8 of the same year, Putin awarded Klimenko the rank of
Acting State Counselor of the Russian Federation 3rd class. He was relieved of his post on June 13, 2018. In 2021, he was included in the federal list of the
Russian Party of Freedom and Justice in the
State Duma elections.
As a technology developer In August 1998, he launched a directory of sites and server statistics of site traffic
List.ru. In 2000 it was sold to
Mail.ru for a million dollars, which launched on its basic service Top.Mail.ru. In April 2009, he launched
MediaTarget, a media-context advertising system based on Liveinternet. Klimenko later recognized the idea as a failure due to the inability to find suitable projects. In July 2010, the first rating of Russian-language Facebook pages was created. In January 2014, , a news aggregator based on data from social networks, was launched, displaying media notes that collected the most clicks from social networks. It was initially created on behalf of Sergey Kravtsov of
Qip.ru, but after the sale of Qip.ru by
RBK Group, Klimenko made it his product. By the beginning of August 2014, the Mediametrics website had about 80,000 daily users, by October 8, 2015, the audience reached 300,000 users. In August 2014, he headed the board of directors of AllinOne Network, which develops
E-commerce projects for the Russian pharmaceutical retail market and the commercial medicine market, as well as digital advertising for the pharmaceutical and medical markets. In late 2015,
Roskomnadzor registered Mediametrics cable TV channel. The total value of Klimenko's Internet assets was estimated by FINAM at more than 1 billion rubles. == Controversy involving his companies ==