About Us

Consultants and Interim Managers at Sourcing-Experts.org

Sourcing-Experts.org is a network organisation of sourcing / procurement experts with excellent background. We deliver tailored sourcing / procurement consulting and interim management services to clients across different industries based on the principles of high achievement sourcing. Consultants and interim managers in our network have a minium of ten years of sourcing / procurement management or consulting expertise.

Doing Projects with Us

Projects with us are done in a customized manner. In a first step you will receive detailed information about our background, project experience and certification. In a second step, after we got an understanding of your company's specific situation, you will receive an individual offer for our services.


A consulting or interim management contract with us can be done either on an individual (freelancing) basis, or alternatively, with one of the international consulting organisations (e.g. Emarticon GmbH, www.emarticon.net) we have set up cooperations with. Through our network resources for projects of different size are available.


Contact us to learn more.

Your Contact Person

Clemens C. Rinnebach

Dipl.-Ing., M.B.A.


Clemens Rinnebach has studied Electrical Engineering at the Leibniz Universität Hannover and Finance at the University of Pennsylvania, The Wharton School.


He worked as management consultant at the Boston Consulting Group (Boston Consulting München and San Francisco) and A.T. Kearney. His line management sourcing expertise he gathered at the Siemens AG and Siemens Enterprise Communications GmbH where he was responsible for Indirect Material and Sourcing Strategy as a Vice President Strategic Procurement. At the HypoRealEstate and Deutsche Pfandbriefbank AG Clemens Rinnebach led Sourcing to become a key lever for the turn-around programme of the bank. Thereafter, he was Head of Sourcing at Allgeier SE, an IT-group with approx. 6,000 employees.

Clemens Rinnebach works as an independent Management Consultant and Interim Manager and is Managing Director at Emarticon GmbH (www.emarticon.net) and at Sourcing Experts (www.sourcing-experts.org).


Clemens Rinnebach did Judo for more than twenty years. Today, he loves fitness sports, skiing and enjoys nature. His special interest is the combination of physics and philosophy. He actively supports World Vision.

Learn more about our services and example projects done, our methodology and our principles and client value.

How prepared is your business? Contact us to learn more.