Graduated from the national aviation university majoring in "Management of foreign economic activity" and a postgraduate study in "The economic theory". Candidate of Economic Sciences.
Sergey Deminsky started the career in 2001 in New Project company at a position import manager.
In 2002 Sergey Anatolyevich passed into insurance company of Beads to a position of the sales manager. In
2004 Sergey Deminsky holds a position of the deputy finance director, and since 2006 – development directors.
Since 2007 Sergey Deminsky is the CEO and cofounder "Debt management agency" (since January, 2009 – CredEx company).