Sergei Grebennikov graduated from the International Academy of Business and Management, Faculty of the Institute of Modern Communications Systems and Technologies (2003-2008).

Over the years, he has worked as a PR specialist at Rasprodaga.ru, Webalta, Retail Media - Rasprodaga.ru.

2007: Deputy Executive Director of ROCIT.
2010: Deputy Director of the Russian Association for Electronic Communications (RAEC), a recognized expert in the internet industry.
2014-2021: Director of the Regional Public Center for Internet Technologies (ROCIT).
2019: creator of the Russian Digital Dictation campaign.
From December 2022: Director of RAEC.

For many years, Sergei Grebennikov has been the organizer of Russian internet conferences, forums and the Runet awards RIF + KIB, Russian Internet Week, Runet Prize, etc.