Companies listed on Euronext Lisbon stock exchange like EDP, Galp, Jerónimo Martins, Mota-Engil, Novabase, Semapa, Portucel Soporcel, Portugal Telecom and Sonae, are amongst the largest corporations of Portugal by number of employees, net income or international market share. The Euronext Lisbon is the major stock exchange of Portugal and is part of the NYSE Euronext, the first global stock exchange. The PSI-20 is Portugal's most selective and widely known stock index.