From a review of the tradingview.com website, I identified the 21 Nigerian Companies with stock market caps recently above 100 billion in Nigerian Nairas (NGN).
Also from a review of the investing.com and wallstreetjournalmarkets.com websites, the table below shows the Consolidated Net Income (Loss) from Continuing Operations for fiscal years 2021, 2020 and 2019 for each of these 21 largest Nigerian Companies.