Aliko Dangote is worth $51.3 billion, more than twice Nigeria's other billionaires combined

Nigeria's other billionaires need to work harder.

Forbes valued Aliko Dangote at $51.3 billion on Monday, Sept. 14. Every other Nigerian billionaire on its list, added together, comes to $21.1 billion.

There are only three of them. Abdulsamad Rabiu is worth $12.2 billion, Mike Adenuga $7 billion and Femi Otedola $1.9 billion.

Dangote is worth 2.4 times the other three put together, and $30.2 billion more than all of them. He accounts for 71% of all Nigerian billionaire wealth Forbes tracks.

The gap opened in ten days. Forbes had Dangote at about $31.5 billion on Sept. 4, which means roughly $20 billion arrived in a week and a half without him buying or selling anything.

What changed was the price of his refinery.

Forbes had been carrying the Lagos plant conservatively because it was private and had no traded value. The private placement completed in July gave it one. Investors paid $2.5 billion for a slice of the company and the book was oversubscribed by 270%, and applying that price to Dangote's holding produced the revaluation. Forbes said the placement pushed him over $50 billion and that more is likely as the refinery sells shares to individual investors.

The public offer opened on the same day the new figure appeared. Dangote Petroleum Refinery and Petrochemicals is selling 4.1 billion ordinary shares at 525 naira each, seeking about $1.6 billion in what will be the largest share sale in African history. It closes on Oct. 13, and the sale covers just 3.3% of the company.

Bloomberg has not moved as far. Its Billionaires Index still carries Dangote at $35.3 billion, though its own projection puts him at $58.2 billion once the offer completes.

The three men behind him built their fortunes on different things.

Rabiu founded BUA Group in Kano and expanded it into cement, sugar and food processing, listing BUA Cement and BUA Foods on the Nigerian Exchange. He was named LEADERSHIP Person of the Year for 2026 and pledges $100 million annually through his foundation.

Adenuga founded Globacom, Nigeria's second-largest mobile network, which marked 23 years of operation this year, and controls the oil company Conoil. He made his first money in distribution and construction before moving into telecoms.

Otedola owns about 27.6% of First HoldCo, the parent of FirstBank, and chairs it. The shares reached a record 159.90 naira on Sept. 1, and he has said he intends to take the holding beyond 51%. His fortune has roughly doubled since March, when Forbes ranked him 22nd in Africa at $1.3 billion.

Two other Nigerian-born billionaires are missing from the count.

Tope Awotona, who founded the scheduling software company Calendly, was born in Lagos and moved to the United States at 15. Adebayo Ogunlesi, who built Global Infrastructure Partners and sold it to BlackRock, was born in Nigeria and educated there before Oxford and Harvard. Forbes lists both as American, which is how citizenship rather than origin determines placement on its country rankings.

The concentration itself is the more striking number. Nigeria has more than 200 million people and the largest economy in West Africa, and four of them appear on the Forbes list. One of them holds seven out of every ten dollars they are worth between them.

That figure will move again in October, when the refinery shares start trading and the market decides what the asset is worth rather than Forbes estimating it.