Management
Rupprecht Rittweger founded e-shelter in 2000 and as the Chief Executive Officer he was responsible for corporate management until July 2019. Rupprecht Rittweger will remain in the company as Chairman. As the CEO of Investa Holding GmbH, he has many years of experience in the property industry.
Florian Winkler has over 20 years’ experience in the business development of ICT solutions for major customers as well as in the establishment and further development of all customer-oriented organizational structures. Florian Winkler joined e-shelter in 2012 and worked in various positions to develop sales, customer and project-oriented processes with a view to further expansion, most recently as Chief Commercial Officer and Managing Director. In August 2019, he took over from Rupprecht Rittweger as Chief Executive Officer and is now responsible for the further expansion of NTT’s data center business in EMEA. In addition to his degree in Economics he also holds an MBA from the University of Dayton (USA).
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.
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.
Peter Judson has over 20 years’ experience in leading large operational teams and a proven track record in managing large scale data centers and critical services across EMEA. In his role as Senior Vice President (SVP) Technical Operations he is responsible for leading the EMEA wide Operational team to deliver service excellence, and to drive consistency, efficiency and customer satisfaction.
Wolfgang Klein has over 30 years’ experience in project development and construction, and 20 years’ experience in the design and construction of data centers. He has managed and executed design and construction projects across Asia and Europe. Over the past 10 years he has held executive positions in several global industrial companies. As Senior Vice President Design and Engineering at e-shelter he has responsibilities in the areas of development, design, quality management and research. He holds a degree in engineering from the University of Applied Sciences Gießen-Friedberg and in economics from the University of Applied Sciences Pforzheim.
Konstantin Hartmann has extensive experience in building customer-oriented processes and structures in markets with diverse customer segments and requirements. He joined e-shelter in 2017 and established the Pre-Sales division to support sales activities. In August 2019, he assumed the role of Senior Director Commercial Management and is responsible for NTT's data center business in EMEA pre-sales and customer management activities. Konstantin holds a master's degree in Management from the International School of Management in Frankfurt.
Lester Towse has over 20 years’ experience in the data center and ICT infrastructure services industry. His experience ranges from commercial & relationship management, to solution delivery and operational effectiveness across EMEA. In recent years he has been utilizing this experience to drive the creation of compelling data center products to cater for the ever-evolving and technology-driven client needs.
Martin Müller has over 20 years’ experience as a proven and trusted HR Lead in several leading international people/HR organizations. In 2016, he joined e-shelter as Director Human Resources and from then on has developed our people department into a service and project-oriented business partner organization and set the stage for our ongoing international expansion. In 2019, Martin took over the role as Senior Director Human Resources EMEA and proactively advises our Executives and our organization on the growth and expansion of our business strategy from a people & culture perspective. Martin studied at the University of Konstanz and University of Barcelona and holds a degree in Public & Business Administration.
