Big Tech refers to the most important and substantial technology firms operating in a given industry. Their services and products are utilised all over the world and are now extensively relied upon by both businesses and consumers, raising privacy, safety, and antitrust concerns regarding their activities and influence, and whether stringent laws should be taken into consideration

Several major businesses are frequently referred to as Big Tech. They are frequently grouped together and identified by acronyms.

Here are some of the big tech companies of the world-

• Google LLC, an American multinational technology firm that is a subsidiary of holding company Alphabet Inc., specialises in internet-related services and products, such as a search engine, online advertising technologies, cloud computing, software, and hardware. Also it's literally everywhere, even while reading this answer you might be on Google or used google to get to this answer.

• Jeff Bezos founded Amazon.com Inc., the largest e-commerce site in the world, in 1994 as an online bookseller. However, the company quickly expanded to sell other goods, such as electronics, video games, software, clothing, furniture, food, toys, and jewellery. Amazon, which generated $280.5 billion in revenue in 2019, is the largest online corporation in the world in terms of revenue.

• Facebook is a social networking site that Mark Zuckerberg founded in 2004. Registered users can create profiles, connect with friends, family, and coworkers, send messages, and upload photos and videos. As of December 31, 2020, Facebook had 2.8 billion active users per month and generated $86 billion in revenue. 
• With $267.7 billion in sales by the end of 2020, Apple Inc. was the biggest technology business in the world. Apple is a company that designs and sells a variety of products, including software, hardware, services, digital applications, and accessories. It was founded in 1976 by Steve Jobs, Steve Wozniak, and Ronald Wayne.

Companies in the Big Tech sector have expanded dramatically during the past 20 years. Most of them rule their respective marketplaces thanks to their technologies. 

Due to the fact that hundreds of millions of people rely on and utilise their goods and services globally, they have transformed how businesses and individuals use technology in their daily lives. 

Because they comprehend their markets and clients' needs and produce goods that guarantee customer happiness, IT giants continue to rule.

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