Our staff have lived, worked and studied in a variety of different countries and speak a number of languages. No matter what industry they have worked in, Gisma’s staff all bring something unique to the organisation.

  • Academic

Tina Roso

About Tina Roso has more than 20 years of experience in the corporate world, specialising in general management, strategic marketing development, brand development and markets development. Her international expertise lies in management, people, training, marketing and sales. In her 20 years of international experience in the corporate world she has excelled in the following areas:
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Prof. Dr. Fotis Papageorgiou

Prof. Dr. Fotis Papageorgiou is Professor of Social Sciences at GISMA and serves as the University’s Vice President (Academic). He completed his studies in Psychology, Philosophy and Politics in Greece (Panteion University) and the United Kingdom (Essex University) and is a licensed psychologist. In parallel to lecturing, he’s held senior management posts in Higher Education.
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Saud Ahmad

Saud Ahmad holds a master’s degree in International Business from London Metropolitan University. His work focuses on how leaders, brands and organisations communicate their identity by storytelling. He regularly consults with executives from a variety of fields to help create marketing solutions in today’s fast forward business environment. Saud currently teaches marketing at different educational institutions in the UK and Europe.
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Professor. Dr. Ahmad Abu-Alkheil

Dr. Ahmad Abu-Alkheil is the Programme Leader for Global MBA; International Business Management; International Agribusiness courses at GISMA. Prior to this, he was a guest professor at Hochschule Fulda – University of Applied Science and has extensive finance and accountancy experience, both within business and education. Dr. Abu-Alkheil received his Doctorate of Science in Banking and Financial Studies from Universität Hohenheim and holds an MBA in Finance in addition to professional certificates within accounting, finance and management (AMC, CWM, MFP, RMP and CCP). He is an active research scholar and has published papers in numerous journals.
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Claudia Wittman

Claudia Wittman teaches Corporate Reporting and Academic Writing. After studying in Mannheim and Kiel in Germany, Iceland and California, she obtained a master’s degree in the US and has taught in Germany, Japan, the US, Mexico, and New Zealand. Previously, she worked as a Lecturer at the Berlin School of Economics and Law (Hochschule für Wirtschaft und Recht) and her academic focus lies in Business Administration and Finance. Her professional work has seen her spend time in Iceland, Germany, Central America and the USA.
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Prof. Dr. Peter Konhäusner

Prof. Dr. Peter Konhäusner, Professor of Digital Entrepreneurship, at GISMA Business School University of Applied Sciences. By profession, he is a consultant and managing partner in a PR & marketing company in Berlin. Having been an entrepreneur for more than 20 years, he now enjoys transferring practical experiences to students through presenting interesting methods and theories. Dr. Konhäusner’s main research topics include entrepreneurship and business administration, marketing as well as digitisation. Besides teaching, reviewing exams and supervising bachelor and master theses, Dr. Konhäusner works as an independent consultant internationally. Especially assisting start-ups and SMEs in growing more prominent, finding the right marketing strategy and overcoming difficult times. Being a managing partner in the PR & marketing agency BC Communication enables Dr. Konhäusner to put his extensive expertise in a corporate context to work, as the agency’s main topics include crowdfunding campaigns and digitization of companies. The small team works together with many expert freelancers who are hired on an on-demand basis. Before teaching, the GISMA Professor finished his studies at the Economics and Business Administration University in Vienna as well as at Babeș-Bolyai University in Cluj-Napoca, and ran a media publishing house for over 15 years.
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Klaus G. Kammermeier

Klaus G. Kammermeier creates and conducts immersive, collaborative learning and innovation experiences in the form of workshops, learnshops, and online courses. He teaches international students, innovators, and business leaders in the areas of innovation, entrepreneurship, marketing, and leadership. He has extensive experience in technical-commercial leadership roles in global corporations, in consulting startups and globally recognised brands to achieve sustainable innovation leadership, and in education with Technical University Berlin and a number of competitive international business schools. Klaus studied Engineering, Economics, and Management at Munich University of Applied Sciences and completed executive education programs at Tuck School of Business at Dartmouth College, Hanover, New Hampshire and Columbia University Business School, New York City, USA. He created new formats of working together, one of which is NanoLabs®. He lived for 10 years in the UK and the United States and resides in Berlin, Germany now. 
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Yannis Salavopoulos

Yannis Salavopoulos is a University Lecturer at GISMA Business School alongside at other German Business Universities. Moreover, he has given seminars, lectures and workshops at other Business Universities in Germany, UK, Switzerland, Greece (e.g. Imperial College London, York University, Geneva Business School and etc.). Yannis is the Founder and Managing Director of CAPITALS Circle Group (CCG) GmbH, a Berlin-based internationally active market, data-driven advisory and service provider for the digital economy and tech industry focusing on public relations / corporate communication / IR growth & digital transformation strategy, governance, risk & compliance. The company offers training and workshops in the field of expertise. The company serves corporates, banks, investors, and start-ups. Yannis Salavopoulos is the Managing Director of Global Sustain GmbH & Group Head International Affairs (part of Global Sustain Group, with presence in Berlin, London, Athens, Nicosia, Cairo), an international consulting firm with a focus on sustainable finance, sustainable investments, sustainability strategy, sustainability reporting, etc. It services and cooperates with international banks, investors, multinational corporates. Before entering the private sector, he had spent a few years working as a lawyer with expertise in corporate & commercial law. He then served as the Economic Diplomat, representing Greece at diplomatic posts at various Embassies abroad (e.g. UAE, Germany). Yannis holds an Executive MBA in International Management (from Anglian Ruskin University Cambridge & from Berlin School of Economics & Law) and an Executive Master of Sciences in Law & Economics (ALBA Graduate Business School, Athens, top-ranked in Financial Times). He holds a bachelor’s degree in law from the Aristoteles University of Thessaloniki. He completed one year of his bachelor studies at the Freie University Berlin.
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Prof. Dr. Varun Gupta

Prof. Dr. Varun Gupta is a Professor at GISMA University of Applied Sciences, Potsdam, Germany. He also serves as the Head of the Multidisciplinary Research Centre for Innovations in SMEs (MrciS) at GISMA. He has maintained various associations with Universidad de Alcalá in a number of capacities, most notably as a Postdoctoral Researcher, Researcher, and Co-Director of a master’s degree in Innovation Economics, Management, and Technology. He was also a visiting Postdoctoral Researcher with the Software Engineering Research Group (SERG), Department of Computer Science, Lund University, Sweden.
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