Irena Simakova

Irena Simakova currently serves as Senior Vice President and Head of International Sales at GBTEC Group since May 2025. Prior to this role, Irena was the Chief Revenue Officer (Fractional) at Subject7 for a brief period in early 2025. From October 2018 to May 2025, Irena held several leadership positions at Similarweb, including Senior Vice President and General Manager for EMEA and Vice President and General Manager for the Global Investors Vertical. Earlier experience includes being a Client Partner at 3Pillar Global and serving as Vice President of Investment Research at comScore, Inc. for over a decade. Irena began a professional career in client relations at ISS | Institutional Shareholder Services. Irena holds an MBA from The George Washington University School of Business and a Bachelor of Business Administration from James Madison University.