Founder of 14 different companies, which include: Delta Holding SA, Fédération Nationale du Bâtiment et des Travaux Publics and Omnium Maghrébin des Conduites d'Eau SA, Hadj Fahim is an entrepreneur and businessperson who has been the head of 12 different companies and presently holds the position of Chairman at Aciéries et Fonderies de Skhirat, Chairman of HF International (which he founded in 2010), Chairman of Terminal de Bitume de Lomé SAU and Manager of Omnium Maghrébin des Conduites d'Eau du Nord SA (both are subsidiaries of HF International), Chairman at Société Civile Immobilière des Aciéries de Skhirat and Chairman at Association Marocaine des Routes. Hadj Fahim is also Manager of Les Carrières du Tafilalet (he founded the company in 2011), Member of Fédération Nationale du Bâtiment et des Travaux Publics (he founded the company in 2011), Manager of Les Peintures de Sécurité, Manager of Omnium Maghrébin des Conduites d'Eau du Nord SA, Manager at EGEC, Manager for Industries Hydrauliques et Mécaniques (he founded the company in 2011), Manager of Delta Holding Sénégal, Member of Amicale des Ingénieurs des Ponts et Chaussées du Maroc, Manager for Maamorapro SA, Manager of Rimoil SA and Manager for Sogetrama Export SA and on the board of 24 other companies.

Hadj Fahim received an undergraduate degree from Ecole Nationale du Génie Rural des Eaux et Forêts.