Management
Rupprecht Rittweger founded e-shelter in 2000 and as the CEO he is responsible for corporate management. As the CEO of Investa Holding GmbH he has many years of experience in the property industry. After qualifying as an economist, Rupprecht Rittweger worked as a self-employed entrepreneur for several years.
Naoyuki Inoue has more than 20 years’ experience in the IT industry. Before he joined e-shelter in 2015, he worked for NTT in the corporate planning and global business divisions, with a focus on the data center sector since 1999. His role as COO, Head of CEO Office at e‑shelter and as Director at NTT Communications is to enhance the business as a part of the NTT group. He holds an MBA from University of Southern California (USA).
Ingmar Dilßner has comprehensive experience in the data center sector as a consultant for large banks. Since 2008, he has been responsible for financing, equity raising and development activities at e-shelter. Since 2015, he has also been taking care of e-shelter’s investment- and M&A-activities. In 2017 he assumed the overall responsibility for all finance-related activities as Chief Financial Officer.
Qualified engineer Klaus Rudolph has more than 30 years' experience in project development, and building and operating major property and infrastructure projects. He has managed numerous major projects in Europe and the Middle East for a major corporation. His experience in the planning and developing of high security buildings for banks was the basis of e-shelter's campus concept.
Florian Winkler has more than 20 years of experience in developing both, larger solutions projects with key accounts as well as customer-centric business organizations within ICT service companies. His role as Chief Commercial Officer is to further develop all customer-centric processes and organizations to support the continued expansion of e-shelter. In addition to his Diploma in Economics he holds an MBA from University of Dayton (USA).
John Eland has over 19 years of global industry experience across the data center, telecoms and investment sectors. As Chief Strategy Officer at e-shelter, John is responsible for Go To Market and business strategy, corporate development and our ongoing expansion via M&A, Joint Ventures and Development Projects. Additionally John is responsible for Marketing, PR & Communications, Strategy Research & Market Intelligence, and Business Development. John studied International Business at Newcastle Business School in the UK and at ESCEM Business School in Tours, France.
Adam Tamburini has nearly 20 years’ experience in the data center sector, working for end users, telecommunication companies, IT companies and developers. He has worked on the development and construction of numerous data centers across Europe. Adam joined e-shelter in 2008, initially to work on development but now concentrating on working with international customers and partners.
Volker Ludwig has more than 17 years of experience in the data center market. Prior to joining e-shelter, he was working in sales and marketing leadership roles in Germany, Austria and Switzerland. At e-shelter, Volker is responsible for Sales across all regions. He holds an MBA from Euro FH, University of Applied Sciences Hamburg.
Qualified construction engineer Ulf Achenbach has more than 20 years of experience in project management and construction of large real estate and infrastructure projects. He has managed numerous large-scale projects in German-speaking countries, France and Eastern Europe for an internationally active consulting firm in the construction and real estate sector and for a large company in the financial sector. As Senior Vice President (SVP) Construction at e-shelter he is responsible for the execution planning, bidding and construction phases of national and international projects as well as the customer fit-out.
Qualified engineer Christopher Grimble has many years of experience as Managing Director Real Estate at one of the largest independent engineering offices in Germany. He has successfully held management positions with responsibility for development, planning and site supervision of complex and interdisciplinary buildings in Germany and abroad. Christopher Grimble is responsible for Development & Design at e-shelter.
Georg Ruetzel has over 15 years of experience as a lawyer in major international law firms and more than 10 years of experience as general counsel in international industrial companies in the fields of large-scale plant construction, power plant construction and renewable energies. As Senior Vice President Legal & Governance at e-shelter, he is responsible for all legal and governance issues, including compliance and risk management. Georg Ruetzel studied law in Freiburg and Münster and received his doctor´s degree in finance law from the University of Münster.
