Costco.com is the online platform of Costco, a membership-based warehouse retailer known for its bulk discounts on a wide range of products. The company was founded in 1976 by James Sinegal and Jeffrey Brotman. Costco serves a diverse customer base looking for value and quality. With over 270,000 employees worldwide and generating billions in revenue annually, Costco has established itself as a leader in the retail industry.

Where they're located: Omaha, Nebraska, USA
Website traffic: 89.2M/month

4. Discounttire

Where they're located: New Orleans, Louisiana, USA
Website traffic: 6.33M/month

5. Pep Boys

Take care of your car in one place. Shop tires, parts and accessories or schedule your oil change and repair services today. Stores are open seven days a week.

Where they're located: Detroit, Michigan, USA
Website traffic: 2.81M/month