He studied economics at the Russian Academy of National Economy and Public Administration under the President of the Russian Federation.
The head of a company that carries out scientific research and development in the field of natural and technical sciences in cooperation with scientific and specialized institutions to develop inventions.
Tiaglin is the author of two inventions, seven utility models, and four industrial samples. Significant technical solutions are: the transport and logistics system of the city (patent RU 2616644) and the wind power plant (patent RU 2673280). Denis Tiaglin received an award for “100 best inventions of Russia” twice. Currently, patenting is underway in 70 countries worldwide.