How does a company obtain credit cards based on it's credit without having to have a guarantor from a person?

When our company began we opened up credit cards for employee’s under our CEO’s credit line because the company did not have sufficient credit. Two years later, we are stumped as to how to obtain credit cards for the company using only the company’s credit. American Express tells us that no matter what we have [...] http://bit.ly/n1tZcW