Thomas Graf, CEO

Thomas Graf joined Greentube in September 2011 and looks back at a successful career in the gaming industry. He holds various positions in the NOVOMATIC Group. He is CTO on the Board of Directors of NOVOMATIC AG, CEO of Greentube GmbH, CEO of NOVOMATIC Americas Holdings, and a Member of the Board of Directors of NOVOMATIC Gaming Spain.

Thomas has spent more than 20 years working in the gaming industry, gathering invaluable experience in R&D, marketing, intellectual property and operations management of all gaming verticals. His main responsibilities at Greentube include strategic planning, new business development, product and game development, intellectual property and integration management.

Georg Gubo, COO

Georg Gubo has many years of experience in various leading roles in the gaming industry including land-based EGM platforms and casino systems. He has been onboard at Greentube Internet Entertainment Solutions GmbH since September 2015.

He is managing all daily activities of the Greentube group, including all subsidiaries, reporting to the CEO of Greentube. Furthermore he is managing director of Greentube and other subsidiaries.

Michael Bauer, CFO/CGO

Michael Bauer joined Greentube in February 2015 after having already worked for NOVOMATIC Group for two years. He has 10 years of experience in corporate and structured finance, and a strong project management background.

As CFO, Michael is responsible for all accounting, controlling and treasury related matters and coordinates M&A activities and the integration of acquired companies and also provides operational support to the organization for new-market entries. Additionally, as CGO, he is responsible for game production and sales.

Thomas Kolbabek, CTO

Thomas Kolbabek is serving Greentube as CTO since September 2016. He is leading the technical teams that provide IT Infrastructure, Data Management, Business Intelligence, Software Development, Technical Operations and Software Delivery Management.

Thomas has joined Greentube back in 2000 as a software developer. He moved from hands-on development work to delivering projects to establishing and mentoring teams. He enjoys mastering the ever changing environment of the gaming industry a lot.

Trevor De Giorgio, CLO

Dr. Trevor De Giorgio is employed at Greentube as Chief Legal Officer since 2017. Prior to this he occupied the position of Head of International Compliance Manager for Greentube. In his current role Trevor focusses on international regulatory (including licensing) and public affairs for Greentube as well as all legal matters pertaining to the Company and its subsidiaries.

Before joining Greentube, Trevor worked within the Lotteries and Gaming Authority’s Legal department paying particular attention to EU Affairs and Developments. In this role Trevor drafted the LGA’s position on a number of European Issues as well as attending European Council meetings in Brussels. Prior to this Trevor was employed as a Parliamentary Assistant to Dr. Simon Busuttil MEP at the European Parliament in Brussels followed by a year long experience at Ganado Sammut Advocates.

Ronald van den Brink, CCO

Ronald van den Brink joined Funstage Spielewebseiten Betriebsges.m.b.H. in 2010 as Marketing Manager. His vast marketing experience is built upon many years in the gaming industry, stretching back to 2006. In 2014, Ron attained the position of Marketing Director, contributing significantly to the continuous growth of the B2C brands. He has played a key role in strategic and organizational decisions. Responsible for all B2C operations, he is also overseeing website & app development, customer service, as well as marketing, CRM and communications.