He was born in Denizli in 1953. Having graduated from Machine Engineering department of ODTU, Semih Ergür completed his Post-Graduate study in the same field, MBA in AİTİA and doctorate in Manchester University. After working as an academician in the Middle East Technical University, he continued his career in Citibank between 1986 and 2004 at various high-profile positions.
Having worked as a manger in Çalış Holding between 2004 and 2007, as CFO in Akfen Holding and as CEO in Akfen Altyapı Yatırımları between 2007 and 2011, Semih Ergür later worked as the general manager in Gama Enerji. He started working as the CEO of IC Yatırım Holding in 2014. Aside from his membership in IC Holding Board of Directors, he also works in IC Enerji Holding and IC Altyapı boards of directors.
He is married and a father of two.