GESICA is a collaborative venture of French law firms, which originally started in France in 1978, and has grown into a European network of firms in which French is the lingua franca. It now has more than 200 members (firms) in France and in excess of 30 in the rest of Europe. GESICA has a website containing up-to-date information about its network, organises annual conferences and publishes its own journal, Reseaux du Droit.