B2B companies are supportive enterprises that offer the things other businesses need to operate and grow. Payroll processors and industrial suppliers are a couple examples. This is in contrast to business-to-consumer (B2C) models, which sell directly to individual customers, and consumer-to-business (C2B) models, in which users offer services for a business (such as customer reviews or influencer marketing). B2B companies have an entirely different target audience: They offer the raw materials, finished parts, services or consultations that other businesses need to operate, grow and profit.
In this context: 
Can any company in the US stand up against AMAZON in your opinion?
Can another company compete can any organization catch up?
Is there something Amazon is not doing?