- German Property Asset Management GmbH, Frankfurt am Main – Asset Management
- Orange Real Estate GmbH, Frankfurt am Main – Property Management
- Deloitte & Touche GmbH, München – Tax Consulting
- Simmons & Simmons LLP, München – Legal Consulting
- Ernst & Young AS, Oslo – Auditing
- Sprengnetter goValue GmbH, Sinzig – Valuation
