Constantine is a Senior Advisor at Christopoulos & Associates. With an education in law & business and hands-on  management knowledge he accumulates over 40 years of experience in law and business consulting with individual, corporate and government clients.

His fields of experience cover negotiations and contracts in public procurements, telecoms & defence, oil & gas, construction, real estate, distribution networks, privatizations, venture capital and retailing. He has also acted as Project Manager for public procurement tenders and EU studies and is a Chartered Institute of Arbitrators and Hellenic Ministry of Justice Mediator.

Constantine has worked as Counsel to the Government of India, the Canadian Olympic Committe and the Government of Canada as Agent of H.M. The Queen of England in Right of Canada and  Agent of the Attorney General of Canada. He served as the Attache of the Canadian Paralympic Committee for the Athens 2004 Games and  as the Representative of Canada and the Vancouver Olympic Committee for the 2010 Vancouver Winter Olympics Olympic Torch Relay & Ceremonies.

He has served on the Board of Directors of listed and non-listed greek and international companies in the fields of construction, telecommunications, venture capital, chemical engineering, press distribution and retailing.

He has also served on the Board of Directors of the European Venture Capital Association (EVCA), the Hellenic Large Retailers Association (SELPE) and the Hellenic-Chinese Chamber of Commerce. As President of the EVCA Early-Stage Committee he advised the European Commission on early-stage capital. As a Board Member of SELPE he was responsible for Government relations on legislative measures and negotiator for the retailing sector collective employment agreement. He is currently the President of the Hellenic-Canadian Chamber of Commerce, an honorary member of the Hellenic Coaching Association and a Board Member of the Hellenic Historic Vehicles Owners Association.

He studied at the Law School of the University of Athens, with post-graduate studies at the Universite de Paris I – Pantheon-Sorbonne on International Economic Relations, Law of Contract, Company Law, Law of International Trade and received specialized education and training on venture capital at the European Venture Capital Association Institute, on industrial cooperation & subcontracting at the EU-Japan Center for Industrial Co-operation and at the Chartered Institute of Arbitrators (CIArb) and the Centre for Effective Dispute Resolution (CEDR) as a Mediator and Mediator Trainer. He continued his education over the years in negotiations, finance, real estate, retailing, telecoms, marketing, management et. al.

He has taught venture capital at the Hellenic Bank Association and the post-graduate program of the Athens University as well as Mediation at the post-graduate programs of the Athens University and Panteion University and has contributed in greek and international publications on venture capital and public procurements.