1987
Joins CSE
Enters the family company on 28 September and begins learning its operations.3
01
Ooléle portrait
Person · OS
Infrastructure executive
Oumar Sow
Chairman of the Management Board of Groupe CSE
Oumar Sow chairs the Management Board of Groupe CSE, the Senegalese infrastructure company founded by his father, Aliou Ardo Sow. After studying finance in the United States, he joined the family business in 1987, held operating responsibilities in Sierra Leone and Guinea, and helped lead its transition into a holding group. In 2026, CSE still identifies him as its Management Board chairman.1,2,3
01 — The profile
Background & perspective
After completing secondary school, Oumar Sow studied in France and then in the United States, including at New York University and Pace University, where he earned an MBA in finance. He joined CSE on 28 September 1987, first as an executive assistant, then as administrative manager of a road-building operation in Sierra Leone, before becoming country manager in Guinea in 1994.3
He later rose to deputy managing director. When CSE was organized as a holding company in 2015, he was already chairing its Management Board while his father was still alive. Following Aliou Sow’s death in 2017, he continued the succession alongside his brothers and long-serving executives while expanding the group’s infrastructure businesses and subsidiaries.1,2,3
02 — Verified landmarks
The journey in a few dates
A selective timeline established from identified sources.
1994
Becomes country manager in Guinea
Leads CSE’s work in Guinea after an earlier field assignment in Sierra Leone.3
022015
Chairs the Management Board
Chairs the Management Board as CSE adopts a holding-company structure.3
032017
Carries the group forward
Continues the succession prepared before founder Aliou Sow’s death.3
042026
Continues to chair CSE’s Management Board
CSE’s official management page confirms his role in April 2026.1
0503 — Ooléle
Read next
04 — Transparency
Profile sources
- 01Management — Oumar SowCompagnie Sahélienne d’Entreprises
- 02À propos — Notre histoireCompagnie Sahélienne d’Entreprises
- 03Oumar Sow, le sens du devoir en héritageECSEN / Forbes Afrique