A National Competitor is a company that competes with other companies on a national level. The four crossword solutions for the term National Competitor are Hertz (5 letters), Avis (4 letters), MET (3 letters), and ALAMO (5 letters). Hertz is an American car rental company that operates in more than 150 countries. Avis is another American car rental company that operates in more than 165 countries. MET is a Canadian car rental company that operates in Canada and the United States. ALAMO is an American car rental company that operates in more than 20 countries.