About us
Headquartered in Eschborn near Frankfurt, we serve national and multinational clients across Europe. We work in English — 95% of our assignments require it — and speak German, Dutch, Czech and more. We treat clients and candidates with respect and fairness.
Oscar Jager
Founder & Managing DirectorOscar brings over three decades of experience in IT and telecoms. He spent 12 years at Siemens AG in Germany, Belgium, the Netherlands and the Philippines (consultant, sales manager, corporate auditor, IT director), then joined the executive board of Clariteam SA in London and later led IT operations for Tenovis (now Avaya) across Europe. In 2006 he founded ThinkTank Management Consulting and developed its Fact-Based Brainstorming approach. Oscar holds a BSc in Electronic Engineering and an MBA.
Dr. Suzana Verheij-Hrasova
Head of ResearchSuzana is originally from the Czech Republic and moved to Germany in 2002 to study at the University of Münster, where she earned her Master’s in Humanities and a PhD in 2009. She joined ThinkTank during her doctorate and today coordinates all research in Germany, the Czech Republic and the Netherlands. She speaks five languages and reads eight.