Walmart is one of the biggest retail chains in the USA that now operates in 27 countries. It started in the 1960s and gained a competitive edge thanks to low prices and a wide selection of products. Walmart is also the second largest online retailer in the USA, just right after Amazon, with yearly online sales of $13-15 billion.
In 2009 Walmart launched its marketplace – Walmart Marketplace – and allowed other sellers to sell on Walmart.com. Third-party retailers are allowed to sell items in 35+ of product categories. You can find almost anything on Walmart Marketplace, from food and health products, to jewelry and sports goods.