- The Boeing Company Aviation
(Members of the Board)
- Schering Pharmaceuticals
- Aventis Pharmaceuticals
- Bayer Pharmaceuticals
- Pfeiser Pharmacueticals
- L’Oreal Cosmectics
- Keno Cosmectics
- Cerveza Coronitas Vicepresident
- Banco Bilbao
- Daimler Chrysler
- President of Johnson & Johnson Mexico
- Volkswagen Mexico
- Victoria Insurance
- Reale Insurance
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- Berlin Tourismus Marketing GmbH
- Becker’s Travel GmbH
- Conference & Touring GmbH
- TSI Travel Service GmbH
- BVB Bus-Verkehr-Berlin
- CPO Hanser Service GmbH
- Vista Tours Reisedienst GmbH
- MVP- Touristik Service
- Liberty International
- Global Travel and Business Service GmbH
- Allround Services Koen Mothot
- Congres & Event GmbH

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