What are the biggest public companies? This is a question that many people ask themselves when they are either thinking about buying stock or trying to figure out how much money their stocks might be worth. While there is no definitive answer, here at Biggest Public Companies, we have compiled this list of the top publicly traded companies.

Biggest Public Companies

Public Companies

Biggest Public Companies That Are Worth The Investment - BiggestPublicCompanies.com is a great starting point for anyone looking to get started with investing or even someone who has been doing it their whole life but isn't sure about the big-name companies involved in public trading.

Apple Inc.

Apple Inc. is the most valuable public company in America by market capitalization, with a value of $800 billion as of August 2017. Founded in 1976, Apple has become one of the biggest companies on earth by creating products that are used all over the world every day.

Apple is headquartered in Cupertino, California, and has more than 130 retail stores all around the world. It also manufactures many of its products at facilities across the United States and other countries such as China.

The company’s current CEO is Tim Cook, who took over from Steve Jobs when he died in 2011. Some of Apple's most well-known inventions include the Macintosh computer, iPod music player, and iPhone smartphone.


Founded in 1994 and headquartered in Seattle, Washington Amazon's mission statement is to be "Earth’s Most Customer-Centric Company", where they strive towards this goal each year through their innovations like Prime Video or Alexa. Amazon is an American electronic commerce and cloud computing company. Amazon ranks as the world's largest e-commerce marketplace, working with companies like Nike or Starbucks to offer consumer goods in a more efficient manner.


With over 11,000 stores across 28 countries, Walmart offers products such as electronics, clothing & apparel (including footwear), furniture, health & beauty aids, and toys for everyone from young children to older adults by offering low prices every day on everything they sell. The multinational retailer employs over two million associates around the globe. In 2016 it reported $482 billion in revenue according to Forbes Magazine making it one of the biggest public companies today!

General Electric Company (GE)

General Electric Company (GE) was once considered to be one of the largest public companies in the world. In 2016 it reported $125 billion in revenue according to Forbes Magazine making it one of the biggest public companies today!

ExxonMobil Exxon Mobil Corporation

ExxonMobil Exxon Mobil Corporation is a multinational oil and gas corporation that was once considered to be one of the largest public companies in the world. It employs over 75,000 people around the globe and has operations located including manufacturing plants & refineries located all across Europe, Asia, South America, and North America as well as its many international locations.

In 2017 they brought in nearly $300 billion dollars with their petroleum refining business alone which makes them among the top five global energy producers by total daily crude oil production - this company remains at number four on our list for Biggest Public Companies.

Saudi Aramco

Saudi Aramco is the Saudi Arabian national petroleum and natural gas company. The fourth-largest public company in the world, it has reported revenue of $442 billion according to Forbes Magazine!

Microsoft Corporation

Microsoft Corporation is an American multinational technology company that was founded by Bill Gates and Paul Allen. It's a worldwide leader in software, services, and solutions that help people and businesses realize their full potential.

In 2017 they reported a revenue of $110 billion dollars - the third highest on our list for Biggest Public Companies!


Tesla is an American company that specializes in electric vehicles, energy storage, and solar panel manufacturing. It was founded by CEO Elon Musk.