B2B stands for business to business which describes commercial transactions between businesses such as between a web development firm and a reseller. Such transactions are big in volume and thus b2b is flourishing today the most.

B2C stands for business to consumer and describes transaction between business and consumer. It can be best explained by defining retail in which tangible goods are sold from stores or fixed location directly to the consumer.

B2G stands for business to government and is a derivative of B2B and is described as transaction between business and government in which a business entity supplies services or goods to a government sector or firm and can be stated as public sector marketing.