Ranks behind S’Africa, Egypt, Tunisia, Morocco According to a recent report, Nigeria is one of the top 5 business process outsourcing (BPO) destinations in Africa. Only behind South Africa, Egypt, Tunisia and Morocco. Nigeria commands $285.8 million of the combined African domestic and international global business services (GBS) sub-sector estimated $15.1 billion and expected to grow to $19.8 billion by 2023.