Tennis Europe (by constitution European Tennis Federation) is the largest regional association of the sport’s governing body, the International Tennis Federation. As a non-profit organizing body of European tennis, based in Basel, Switzerland, Tennis Europe is comprised of 50 member nations and cooperates with constituent national federations to sanction, manage and support well over 1000 international tennis tournaments each year across the continent. Tennis Europe maintains excellent relations with the ATP and WTA Tours, European Union, and the wider tennis industry.