Unable to start new business

I am interested in starting investment bank. I have > 5,000 bxp and over 3,000,000 meeting the requirements of this business. However, the button to purchase business is not active. I have tried this on google and firefox with same results. I have 5 business including Holding Company. Is there a max that i can have at any one time?

You need more bXP to start a 5th business (excludes Holding Company).

Or you can sell one of your businesses.

We do not disclose the exact amount of bXP needed but you can ask other players in case they may have figured it out.