Achim Sieren

Managing Director

Areas: Sales, Business Development, International

Achim Sieren, born in 1960, is married and father of two children.

Until the end of 1991 and trained as a banker, Achim Sieren had worked in different departments of Westdeutsche Landesbank in Dusseldorf before he supported selected projects in the market sector banking/insurance as a senior consultant for CAP Gemini. Following the takeover of CAP Gemini by debis Systemhaus in 1992, he undertook sales and management functions in the market sector trade until mid-1999.

Afterwards and over many years, Achim Sieren successfully established and developed Wincor Nixdorf’s SAP consulting business in the sector trade/retail as a managing director. As of 2008, he was responsible for the global setup and expansion Wincor Nixdorf’s professional services for trading companies.

In December 2013, Achim Sieren changed to GK Software AG in Schöneck, where he was the responsible chief operating officer for the areas sales, projects and services.

Since January 2016, Achim Sieren has strengthened the management board of Consenso Management & IT Consulting and will in particular develop and expand the positive business development based on his many years of intimate knowledge of the market sector trade.

In his private life, Achim Sieren is a passionate endurance sportsman and skier as well as enthusiastic follower of FC Bayern Munich.