Aaron Lichtenstein is the founder and CEO of the Tefen Group. Since co-founding Tefen in 1982, Aaron has been leading organizational growth and establishing Tefen's reputation as a leader in the management consulting industry. Throughout his 25 years of consulting activity, Aaron personally led dozens of global large scale management programs, and innovatively pioneered many of the unique management strategies and operations analysis used by Tefen worldwide. Aaron holds a B.Sc. in industrial engineering from Tel-Aviv University.

Eli Pelleg is the Corporate COO and a shareholder at Tefen, having over 25 years of experience in the management of large-scale multidisciplinary performance improvement projects. Eli was part of Tefen's founding team and led the company's global breakthrough establishing Tefen USA, where he served as the first President. Eli is currently responsible for Tefen's international growth and business development and is personally active in major consulting projects. Eli holds an MBA from Bradford University and a B.Sc. in industrial engineering from Tel-Aviv University.

As the president of Tefen USA, Barry Calogero brings more than 20 years of management experience to the company. He is responsible for setting the direction of the organization, driving profitable growth internally as well as across the company’s client base in all manufacturing and service industries within North America and Asia. He has an extensive background in all aspects of product and service optimization with significant operations management consulting solution delivery in both manufacturing and product development environments. Barry holds an Executive M.B.A. from The George Washington University and a bachelor’s degree from Loyola College in Maryland.

As GM of Tefen Israel, Anat Sever brings over 22 years of management consulting experience to the company. She is responsible for continuously growing Tefen Israel's activities throughout the services and manufacturingindustries. Anat has extensive experience working hand in hand with the highest levels of both private and governmental organizations to perform large scale performance improvement projects. Anat holds a B.Sc. in mathematics from the Technion - Israel Technology Institute.

As Managing Director of Tefen UK, Alan leads our work with service sector clients across Europe. He has a BA in business organisation from Heriot-Watt University. His early career was spent with logistics company, TNT. He then spent six years as a management consultant in the London Office of Deloitte Haskins & Sells. For the next 15 years he was the Founder and Managing Partner of Erskine Management Consultancy, which was acquired by Tefen in January 2007. Alan has considerable experience in business strategy and operations management within service environments. He works with customer-driven organisations, devising and implementing strategies and change programmes that enhance the customer experience and create agile, cost effective service chains. His most prominent clients include Bosch, British Airways, Centrica, Go-Ahead Group, Metropolitan Police, National Express Group, Scottish Water and Virgin Atlantic.

Dr. Heiko Frank holds a doctorate in business management from the University of Augsburg. In 1989 he started his own company focusing on marketing and sales strategies. In his 18 years of experience, Dr. Frank has executed over 320 projects and has been an advisor to the World Bank, EU and UN. Through the establishment and development of international offices, and the management of complex international projects, he is well-acquainted with international topics. In 2001, he integrated his stock corporation into the Venture Consulting Group, which became part of Tefen Management Consulting in October 2007.

As Managing Director of Tefen–VC Italy, Alessandro is responsible of setting the direction of the organization, driving profitable growth and customer. He has extensive international experiences with large corporations in USA and Europe. Since 2000 he has been the founder and CEO of Venture Consulting, a strategy consulting boutique focusing on sectors with technological discontinuities. He is the co-founder and chairman of StrategiQs Edizioni Srl, a publishing and education company operating in the management segment. He has completed a Harvard Business School executive course in advanced management and graduated in economics from Federico II Naples University.

Erez Tova is a Partner with Tefen, serves as the Corporate CFO. Prior to this position Erez was the CFO of Tefen Israel, Tefen UK and Tefen Poland. He brings over 10 years of financial management expertise, overseeing the daily activities in risk management, planning & reporting, international tax planning, and legal affairs. Prior to his position at Tefen, Erez served as a Senior Auditor at KPMG. Erez holds a Bachelor's degree in Economics and Business and Accounting from the Tel-Aviv University and is a certified public accountant in Israel.

Tsily Friedman is a partner at Tefen serving as the corporate CMO in charge of global business development and marketing. Prior to this position Tsily was a Partner with Tefen Israel and a Director with Tefen USA, amassing 12 years of experience in leading large scale performance excellence programs specializing in customer service, sales and supply chain. Tsily holds an MBA from the IDC Israel and B.Sc. in industrial engineering and system analysis from Ben Gurion University.