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Stefan Opree INVERTO

Stefan Oprée

Stefan Oprée is a Principal at INVERTO. As a graduate economist from the University of Cologne and the Wits Business School in Johannesburg, he is an expert […]

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Frank Albrecht

Frank Albrecht is a principal at INVERTO GmbH and head of the Competence Centre for HR Services. He has many years of experience in advising pharmaceutical companies […]

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Simone Hilbring

Simone Hilbring is a Principal at INVERTO and has been part of our team for 7 years. In her role, she mainly works on international projects, primarily […]

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Philipp Mall

Philipp Mall is a principal at INVERTO, based in Cologne. As Head of the Competence Center Procurement Management, he is an expert in the areas of procurement […]

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Falko Beermann

Falko Beermann is Head of HR Development at INVERTO GmbH. In this role, he is responsible for career development, staffing and training. Along with his team, he […]

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Melanie Burkard-Pispers

Melanie Burkard-Pispers is the head of marketing and communication at INVERTO GmbH. She is in charge of strategy, conception, brand implementation, and public relations. She has a […]

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Thorsten Kräft

Thorsten Kräft is a principal at INVERTO and a member of the HR Services Competence Centre – the INVERTO Training Center. The procurement graduate and CEMS Master […]

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Verena Deller

Verena Deller is a principal at INVERTO. She studied Business Administration in Mannheim, where she specialised in Logistics; after which she was working on a 3 year […]

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Ina Fliegner

Ina Fliegner is software services manager at INVERTO GmbH and responsible for the development of the e-contor procurement software. A qualified lawyer, she helps companies implement this […]

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Pierre Gensert

Pierre Gensert holds a Master’s degree in Business Management with a focus on Finance, Accounting & Taxation from Julius Maximilian University in Würzburg, Germany. He is a […]

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What our clients say about us


Ole Anton Gulsvik, CEO, Seven Seas

„INVERTO conducted a detailed analysis of our international processes, and by introducing a new strategic approach for our procurement, it achieved substantial efficiency gains.“

Patrick Juhl, Head of Procurement, Seven Seas

„As a result of the central procurement organization implemented by INVERTO, as well as the pooling of demands, we were able to make double-digit percentage savings.“

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Thomas Pfeiffer, Head of Product Development at willhaben.at

„Together with INVERTO, we have achieved a result that we did not think possible at the beginning of the project. The overall package of tender preparation, service provider workshops and rounds of negotiations at top management level has raised our hosting landscape to a new level of price performance. I thoroughly recommend working with INVERTO.“

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Dr. Jürgen Wickl, Managing Director of Styria Media IT

„By preparing a functional specification, we managed to advertise requirements in a tailored way. INVERTO’s orientation towards precise customer requirements and benchmarks as well as professional negotiations has contributed significantly to the success of this project. The close involvement of employees in this structured tender process is an additional bonus, and something which will benefit us in years to come.“

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Siniša Mitrović, mag.oec., Managing director, Styria Tiskara Zagreb

„Due to the flexibility of the team, we managed to receive additional offers from suppliers and hence increase competition between existing suppliers. Through centralization of our former pick-up locations in Croatia and Bosnia-Herzegovina we managed to reduce the operational work for our employees. Furthermore, this centralization led to a huge additional revenue from our waste paper business. The project work with INVERTO was very professional and made this great result possible.“

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Marc Lamure, Director, Montagu Private Equity Associates LLP

„INVERTO has helped D.O.R.C. with the professionalization of the procurement organization and accompanied the supplier negotiations for various products and services. By implementing new processes and working with procurement staff, the achieved savings enhance sustainability and will result in a more profitable organization.“

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Erwan Quemener, Purchasing Director, Chassis Brakes International

„INVERTO helped us in raising undreamed-of sources of savings in both direct material and indirect material areas. They did not only identify these potentials but they supported us in the implementation phase with a great professionalism.“

Nick Gerrard, CFO, MID Essex Hospital Services NHS Trust

„INVERTO’s market and product knowledge have been invaluable in helping the Trust deliver substantial cost savings in a short space of time. They have the ability to talk the clinicians language, optimise the procurement process and deliver a result the trust could not have achieved itself.“

Bart Stubbe, Vice President of Purchasing LINPAC Group

„INVERTO are assisting LINPAC since early 2008 in transitioning from a decentralised to a category purchasing structure, bringing sourcing expertise, skilled resources, technology and methodology to recognise, create and release value to the company.“


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