Rebrab founded Cevital and served as its CEO for more than 50 years. He named his son, Malik, CEO in July 2022. Cevital, Algeria's biggest privately-held company, owns one of the largest sugar refineries in the world, with the capacity to produce two million tons a year. Cevital owns European companies, including French home appliances maker Groupe Brandt and Spanish aluminum firm Alas Iberia.