I want to open a branch of my US business in several cities in nigeria

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Hello I am opening one of my non profit branches and businesses throughout nigeria. However my business is strongly reliant on internet and my employees and residents will need access to the internet also. What are your options for establishing internet and wifi and securing my business connection. What info do you need for me concerning the cost. Also do you have contracts for multiple countries our 10 year plan is to be in 32 african countries among others. Thank you!