The man has been involved in business his entire life. In 2002, he opened his first sole proprietorship. One of the sole proprietorship's areas of activity was real estate rentals. Most recently, Tsvikevich served as the director of his own company.
Sergei has two minor sons.
On March 19, 2026, he was pardoned after another visit to Minsk by US President Donald Trump's special representative, John Cole (among a group of 235 prisoners left in Belarus).
