Who Are the Sellers on Amazon
Amazon hosts millions of third-party sellers worldwide, including individual entrepreneurs, small businesses, and large enterprises. According to Amazon's latest public disclosures, third-party sellers account for more than half of total units sold on the platform. These sellers range from home-based brands to multinational corporations operating across dozens of product categories. Forbes reports on the growing share of third-party sales.
Amazon classifies sellers into individual and professional plans based on monthly sales volume and fulfillment method. Professional sellers pay a monthly subscription fee and gain access to advanced selling tools, bulk listing, and analytics. Individual sellers pay per sale and are typically those testing products or selling low volumes. Many sellers use Fulfillment by Amazon, which handles storage, packing, shipping, and customer service in exchange for fees.
How Sellers Build and Scale Businesses
Successful sellers often start by identifying product gaps using tools such as Amazon Brand Analytics, which provides data on search terms, conversion rates, and competitor performance. They source products through domestic wholesalers, overseas manufacturers, or private-label production, then list optimized titles, bullet points, and backend keywords. The SEC EDGAR database shows public filings from companies that started as Amazon sellers.
Scaling requires managing inventory, advertising spend, and supply chain risk. Sellers use Sponsored Products and Sponsored Brands campaigns to compete for visibility, while relying on Amazon's Buy Box algorithm to win conversions. Many build multi-channel operations by selling on Amazon alongside their own websites or other marketplaces. Some sellers eventually create their own brands and move beyond Amazon to reduce platform dependency.
Challenges, Risks, and Regulatory Context
Sellers face intense competition, fee changes, and policy enforcement actions. Amazon periodically updates referral fees, fulfillment fees, and advertising costs, which can compress margins. Counterfeit claims, intellectual property complaints, and account suspensions remain ongoing risks, especially for new or small sellers without dedicated compliance teams.
Regulatory scrutiny of large e-commerce platforms has increased globally. In the United States, the FTC and state attorneys general have investigated marketplace practices related to counterfeit goods, seller verification, and advertising transparency. Forbes covers regulatory risks facing Amazon sellers. Sellers who operate internationally must also navigate VAT, customs duties, and product safety rules that vary by country.