eCommerce or the buying and selling of goods and services over the internet, has revolutionized the way Americans shop and do business. It has become a major force in the US economy and has transformed the retail industry.

According to the US Department of Commerce, eCommerce sales in the US reached $791.7 billion in 2020, up 32.4% from the previous year. ECommerce sales now account for over 14% of total retail sales in the US.

The growth of eCommerce has been driven by a number of factors, including the increasing availability of high-speed internet access, the rise of mobile devices, and the convenience and accessibility of online shopping. The COVID-19 pandemic has also accelerated the growth of eCommerce as consumers shifted their shopping habits to online channels.

In response to this trend, many traditional brick-and-mortar retailers have invested heavily in their eCommerce capabilities, while new online-only retailers have emerged to cater to the growing demand. Some of the most popular eCommerce sites in the US include Amazon, Walmart, eBay, and Target.

Overall, eCommerce has become a crucial part of the US economy and is expected to continue to grow and evolve in the coming years.

ECommerce is not just emerging, but has already established itself as a major force in the United States retail industry. The COVID-19 pandemic has only accelerated the growth of eCommerce as consumers shifted their shopping habits to online channels, and many businesses shifted their operations to meet the increased demand for online orders.

According to the US Department of Commerce, eCommerce sales in the US increased by 32.4% in 2020, while total retail sales increased by just 3.4%. ECommerce sales now account for over 14% of total retail sales in the US, and this figure is expected to continue to grow over the coming years.

The growth of eCommerce has been driven by a number of factors, including the increasing availability of high-speed internet access, the rise of mobile devices, and the convenience and accessibility of online shopping. As a result, many traditional brick-and-mortar retailers are now investing heavily in their eCommerce capabilities, while new online-only retailers are emerging to cater to the growing demand.

Overall, eCommerce has firmly established itself as a major player in the US retail industry and is expected to continue to grow and evolve in the coming years.there are countless online retailers catering to different markets and niches. However, here are some of the most popular and well-known eCommerce sites in the US:

Amazon.com, Walmart.com, eBay.com, Target.com, Bestbuy.com, Apple.com, HomeDepot.com, Wayfair.com, Costco.com, Macy’s.com, Kohls.com, Zappos.com, Etsy.com, Nordstrom.com, Sephora.com, Lowe’s.com, Chewy.com, Ulta.com, Staples.com, Gap.com, Overstock.com, JCPenney.com, Gamestop.com, Barnesandnoble.com, OfficeDepot.com, Michaels.com, Oldnavy.com, Newegg.com, Bedbathandbeyond.com, Menards.com, Thehomedepot.com, Petco.com, 1800flowers.com, Williams-Sonoma.com, The Container Store, Crateandbarrel.com, Anthropologie.com, American Eagle Outfitters, REI.com, Levi.com, Coach.com, Footlocker.com, Dickssportinggoods.com, Banana Republic, Modcloth.com, Pier1.com, Moosejaw.com, Vans.com, Fossil.com, Dsw.com, PetSmart.com, Adidas.com, Lululemon.com, Timberland.com, Westelm.com, BlueNile.com, RalphLauren.com, Patagonia.com, H&M.com, Katespade.com, Build.com, Forever21.com, Ralphs.com, Lushusa.com, Abercrombie.com, Urbanoutfitters.com, Freepeople.com, Brooksbrothers.com, Michaels.com, REIoutlet.com, Dillards.com, Bloomingdales.com, Saksfifthavenue.com, Neimanmarcus.com, Lids.com, YankeeCandle.com, Buildabear.com, Anntaylor.com, Express.com, Coachoutlet.com, Sperry.com, Gymboree.com, Roxy.com, Sunglasshut.com, The-north-face.com, Quiksilver.com, Victoria’s Secret, Dickies.com, Frys.com, Boscovs.com, Zales.com, Cabelas.com, Cratejoy.com, Thredup.com, Zulily.com, Carhartt.com, Landsend.com, Surlatable.com, Moosejaw.com, Revolve.com

Here are the top 20 online e-commerce websites development companies registered in USA, in no particular order:

1. Xiteb
2. Shopify
3. WooCommerce (WordPress)
4. Magento
5. BigCommerce
6. Volusion
7. 3dcart
8. Squarespace
9. PrestaShop
10. Salesforce Commerce Cloud
11. OpenCart
12. Wix
13. Weebly
14. Ecwid
15. Zen Cart
16. osCommerce
17. Big Cartel
18. Square Online Store
19. X-Cart
20. Hikashop

These ecommerce platforms offer a range of features and capabilities to help businesses of all sizes sell products and services online. Shopify is currently the most popular and widely used platform in the US, but there are many other options available depending on your specific business needs and goals.