It is critical for companies to get their products in front of customers and into the modern marketplace, and no company delivers customers quite like Amazon.com, Inc. (NASDAQ: AMZN). Amazon is the largest retailer in the world by market capitalization after overtaking Wal-Mart Stores, Inc. (NYSE: WMT) in 2015. The vast majority of Amazon’s suppliers are based in the United States, followed by the United Kingdom and Japan, but the site offers products from companies from around the world. Whether they offer electronics, exercise equipment or staffing solutions, a wide variety of businesses count on the e-tail giant for sizable portions of their revenues.

Applied Optoelectronics

Headquartered in Sugar Land, Texas, Applied Optoelectronics, Inc. (NASDAQ: AAOI) designs, develops and manufactures optical devices and components, laser transmitters and fiber optic transceivers. From its facilities in Texas and China, it produces photodiodes and related modules and circuitry for the cable television, datacom and access networks, communication and wireless industries. AAOI has a market capitalization of $254 million and receives 45.8% of its $189.9 million in revenue from its business through Amazon. The company’s price-to-earnings (P/E) ratio was 24.09, and its stock was trading for $15.42 as of April 12, 2016.

Wellnet Corporation

Based in Tokyo, Japan, Wellnet Corporation (TYO: 2428) engages in electronic settlement and authentication services. The company is a major worldwide business in billing, payment and publication services, and credit card and electronic billing services online and through point of sale (POS) registers and automated teller machines (ATMs). Wellnet is also a leader in mobile phone payment processing. It has a market capitalization of $346 million and depends greatly on Amazon to distribute its products, deriving 37.7% of its revenue through its dealings with the company. Wellnet paid a yield of 3.11% and had a P/E ratio of 37.26 as of April 12, 2016.

TrueBlue

Based in Tacoma, Washington, TrueBlue, Inc. (NYSE: TBI) provides specialized workforce solutions such as staffing, staff recruitment and full-time management outsourcing. The company operates globally, placing over 800,000 people in positions each year in a wide variety of industries. The staffing segment specializes in blue-collar services such as general labor and skilled trades and is responsible for placing many warehouse and fulfillment employees in various Amazon facilities. TrueBlue has a market capitalization of $1.1 billion and derives 13.1% of its $2.7 billion in revenue through dealing with Amazon. As of April 12, 2016, the company had a P/E ratio of 15.06, and its stock was trading for $26.52.

GoPro

Founded by Nicholas Woodman in 2002 in San Mateo, California, GoPro, Inc. (NASDAQ: GPRO) produces wearable video cameras and accessories. The company also provides media content created by users for use in advertising. GoPro has a market capitalization of $1.6 billion and derives 12% of its $1.6 billion in sales through Amazon. Increased competition has cracked GoPro’s dominance of the action camera market. The company has a P/E ratio of 53.48. Since its peak of $98 in October 2014, GoPro’s stock tumbled to just $12.79 as of April 12, 2016.

Nautilus

Headquartered in Vancouver, Washington, Nautilus, Inc. (NYSE: NLS) develops and manufactures a diverse range of fitness equipment and products. It distributes its products through direct advertising, catalogs and the Internet, as well as through independent retail companies. Nautilus produces exercise equipment such as ellipticals, treadmills and free weights for personal home use and commercial gyms. Its brands include Nautilus, Bowflex, Schwinn and Universal. The company has a market capitalization of $599 million and derives 11% of its $335.8 million in sales through Amazon. It had a P/E ratio of 21.84, and its stock was trading for $18.42 as of April 12, 2016.