E-commerce is subdivided into 4 major types:

1.
B2B (Business to Business): businesses trade off with each other online
- Example: The Newton Group is one of the largest industry that distributes eyewear to more than 2,500 independent ophthalmic practitioners and retailers nationwide. They have over 200 ophthalmic suppliers and stocks numerous lenses from all the popular contact lens manufacturers. Thousands of lenses are being shipped out daily.

2.
B2C (Business to Consumer): businesses selling to consumers
- Example: Amazon, which is the one of the world's largest e-commerce platform that provides online shopping experience with large range of selection on products such as books, electronics, apparels, beauty supplies and so forth.
3.
B2G (Business to Government): businesses selling to government agencies
- Example: GSA Advantage is an organization that engaged in supplying products and services online to federal government officials. The organization's main mission is to create and provide the most efficient purchasing portal which specially designed for federal agencies to shop online.
4.
C2C (Consumer to Consumer): business model that facilitates the transaction of products or services between customers
- Example: eBay, the most notable company which adopts the online-auction shopping style. The company provides a worldwide platform for individuals to buy and sell a broad variety of goods and services, and a small percentage of fee is charged from the sellers on each item sold.