The Founder


Nathalie Biderman founded Calya International in 2012.


During her 28 years of professional experience, both in France and abroad, Nathalie has developed solid links with tens of key opinion leaders worldwide and she has built a unique network of decision makers.


Nathalie Biderman began her career as an attorney of law in Paris.


As an adviser to the 1992 Organizing Committee of the Albertville Winter Olympic Games, she was mostly involved with marketing and communications strategies.


Nathalie later joined the leading US law firm Cleary, Gottlieb, Steen & Hamilton, in New York and Paris. There, Nathalie dealt mainly with multinational corporations in the context of their business development and corporate restructuring plans in Europe, particularly in the media, communications and IT sectors.


Nathalie left her law firm in 1999 to test her entrepreneurial skills and experience the e-bubble. Based in Barcelona, she joined the  founding team of eDreams, a start-up now leading the European on-line travel market, and listed at the Madrid Stock Exchange.


In 2003, Nathalie Biderman joined the Havas Group’s international public affairs team. She was soon promoted COO of the Havas Worldwide PR network (formerly Euro RSCG Worldwide PR). For nearly 10 years, she advised French and international corporations, institutions, NGOs and personalities, primarily from the political and economic arenas, in their global communications strategies.


With her unique expertise, gained mostly in the fields of business development, public affairs, lobbying and crisis management, Nathalie decided to set up Calya International in 2012.


Since June 2013, Nathalie Biderman has served as a member of the Supervisory Board of HighCo, a non-media communications group listed in compartment C of NYSE Euronext Paris.


Nathalie holds an M.B.A from INSEAD, a Master of International Law from Georgetown University and a Tax & Business Law Degree from University of Paris II-Panthéon. She is also a member of the New York State Bar Association.



Nathalie Biderman cooperates with a team of selected Israeli and European partners, including:

  • venture capitalists
  • investment bankers
  • entrepreneurs
  • leading experts in each sector of innovation (cyber-tech, biotech, big data, energy, agritech…)


Calya International is a human-sized consultancy specialized in business development, networking and influence.


We connect European companies and governments to the key-players in Israel that can solve their most pressing challenges.


We also use our extensive international network to help Israeli start-ups develop new markets in Europe.