By 2005, Microsoft may have made as many as 12,000 millionaires

Microsoft was the most popular stock in hedge fund portfolios as of Q1 2024

874 hedge funds held Microsoft stock at the time. This infographic shows more of the most popular stocks in hedge fund portfolios.

From 1986 to 2024, Microsoft has acquired at least 277 companies

Some of these acquisitions helped the company expand into enterprise software and services, including Visio, which integrated diagramming software into Microsoft Office, and Hotmail, which provided an email platform to customers. Recent acquisitions of Mojang and Activision Blizzard underscore an increasing emphasis on the video game industry.

As of 2024, server products and cloud services make up 40% of Microsoft's revenue

These products generated $97.7B in the 2023-24 fiscal year, followed by office products and cloud services, which accounted for $54.9B during the same period. The fastest-growing revenue source was gaming at 39%, driven by sales of Xbox and first-party software.

Bill Gates and Paul Allen were childhood friends before founding Microsoft

The two bonded over a teletype terminal at their school, which required a $40 hourly fee for computing time. They were banned from using the device after exploiting a bug that allowed them to bypass the fee, only to be later offered free computing time for finding more bugs.

Microsoft Excel is used by over a billion people worldwide

The upstart computer software company Microsoft launched its columns-and-rows spreadsheet program in 1985, enabling users to sort information, create charts, and perform calculations with minimal friction. It would be coupled with Microsoft Word and PowerPoint in 1990 as part of the Microsoft Office for Windows.

Three AI startup founders broke the record for the youngest self-made billionaire previously set by Mark Zuckerberg

Mark Zuckerberg became the youngest self-made billionaire in 2006 at 23 years old when Facebook held its initial public offering. In January of 2026, three AI startup founders—Brendan Foody, Adarsh Hiremath, and Surya Midha—broke Zuckerberg's record and became billionaires at 22 years old.

Microsoft paid $50k for the foundation of the OS they licensed to IBM

Rather than write MS-DOS from scratch, Bill Gates purchased the full rights to QDOS—Quick and Dirty Operating System—from Seattle Computer Products only weeks before IBM's PC hit the market. The IBM deal allowed Microsoft to license its OS to other manufacturers, ensuring it was not dependent on IBM's long-term success.

Microsoft's initial successes came from promising products that did not yet exist

In discussions with teams responsible for MITS's Altair 8800 and IBM's PC, Bill Gates and Paul Allen claimed to have created ready-to-use software. Code for the former was not completed until Paul Allen's flight to MITS' headquarters, where the software was successfully tested for the first time.

Around 60% of female billionaires in the US are considered self-made—meaning at least some of their wealth comes from a business venture launched on their own.

Visualize the world's top 20 billionaires in 2026

This data visualization shows the 20 wealthiest people in the world as of January 2026. Topping the list with a net worth of more than $713B is Elon Musk, trailed by Larry Page ($258B), Jeff Bezos ($251B), and Larry Ellison ($243B).

See Bloomberg's continuously updated Billionaire Index

This ranking, updated daily, shows a running tally of the world's 500 richest people. Tesla and SpaceX CEO Elon Musk has largely been atop the list, with a net worth of around $723B as of June 2026. Values fluctuate significantly as much of the wealth is tied to equity in companies. (Some users may experience a paywall.)

Who are America's highest-paid CEOs?

As of 2024, Apple's Tim Cook, Starbucks' Brian Niccol, and Microsoft's Satya Nadella were among America's highest-paid CEOs, each making tens of millions of dollars per year.

See a visual of the US states with the most billionaires.

On average, CEOs at top US companies make 281 times as much as the average worker—partly due to valuable stock options that are frequently included in executive compensation packages.

Many of the top companies in the US by market cap began as tech startups

Combined, the top seven companies by market cap in the US as of December 2024—Apple, Nvidia, Microsoft, Alphabet, Amazon, Meta, and Tesla—were worth more than $16T at the time.

In 1999, Microsoft and Intel’s addition signaled the information tech era for the Dow

Microsoft and Intel became the first information technology firms added to the DJIA. Their inclusion marked a turning point—the digital revolution and tech began to drive the American economy.

Former Berkshire Hathaway CEO Warren Buffett is among the world's most generous philanthropists, having given away more than $68B.

American billionaires' wealth, visualized

America's top 20 billionaires have a combined wealth of $2.7T as of 2024. That's more than Russia's annual GDP. But some billionaires, like Elon Musk, hold a greater share of that $2.7T number than others. To see just how much money each of these 20 billionaires have in comparison to the others in the group, check out this data visualization.

Most US billionaires made their wealth in banking and finance rather than tech

A third of US billionaires inherited much or all of their enormous fortunes. It can be tough to determine the exact net worth of billionaires given that much of their money is often tied up in company stocks, which fluctuate significantly in a given week. (Some users may experience a paywall.)

Microsoft Office debuted on the Macintosh in 1989

Over 15 months before its debut on Windows, the suite included Microsoft Word, Excel, PowerPoint and Mail—the precursor to Outlook. Bill Gates saw the Mac as a testing ground to work out bugs and gather feedback before the Windows release.

How popular are America's billionaires?

The US has more billionaires than any other country, and they are a mix of media moguls, entrepreneurs, and entertainers. This list ranks the 10 richest Americans by their popularity. The oracle of Omaha, Warren Buffett, ranks highest in favorability at 52%, while Google cofounder Sergey Brin ranks lowest—likely because 72% of respondents didn't recognize his name.

The Giving Pledge was a movement started by Warren Buffett, Bill Gates, and Melinda Gates

The Giving Pledge was started to encourage the world’s richest individuals to donate most of their wealth either during their lives or in their wills. Buffett has committed to donating 99% of his money.

The number of billionaires in Saudi Arabia is projected to increase by 183% by 2031

Countries in the Middle East and Asia are projected to have some of the largest economic expansions by 2031, including within their billionaire populations. The global average growth projection for billionaires is 26% between 2026 and 2031.

Bezos owned roughly 8% of Amazon as of 2025

Three decades after founding Amazon, Jeff Bezos has built a sprawling empire of businesses and financial interests. Other large stakeholders in the company include Amazon CEO Andrew Jassy and Bezos’ ex-wife MacKenzie Scott. This article provides more details on who owns how much of Amazon.

Slick interfaces and bundling helped solidify Excel as the corporate planning tool

First initiated in the 1980s, the Excel spreadsheet built off predecessors like Lotus and VisiCalc, leveraging a novel graphic interface to entice new customers and packaging the program with other Microsoft Office products. Forty years later, the tool faces challenges from Google and AI, but retains devoted users.

Amazon founder and billionaire Jeff Bezos' wealth primarily stems from his Amazon ownership stake.

The Forbes Midas List is an annual ranking of the world's top 100 venture capitalists

To qualify, investors are ranked by portfolio companies that have gone public or been acquired for at least $200M in the past five years, or that have at least doubled their private valuation to $400M or more over the same period.

The moment Bill Gates and the Rock announced the original Xbox at CES 2001

At CES 2001, Bill Gates and Dwayne “The Rock” Johnson took the stage to unveil the original Xbox. This memorable moment marked Microsoft’s entry into gaming and set the tone for its console brand.

In 2018, Apple became the world's first publicly traded trillion-dollar company

The valuation was made possible by Steve Jobs' return to the company in 1997, who implemented a simplification strategy by cutting the majority of Apple's existing product line. His promotion of Jony Ive to SVP of industrial design would help popularize Apple through colorful products and marketing.

The world's 50 most valuable private companies

While public companies typically have the highest valuations, private companies get close. This list breaks down the top 50 as of 2025, with SpaceX at the top with a value of $350B, followed by ByteDance. Over three-fifths of the list are located in the US, with eight in China.

Watch Bill Gates trigger the Blue Screen of Death during a Windows 98 demo

During a live Windows 98 demo at a computer trade show, Bill Gates watched as the system crashed with the infamous “Blue Screen of Death”—a critical Windows error screen signaling a system failure—midway through the presentation.

Jeff Bezos launched his philanthropic ‘Bezos Day One Fund’ in 2018 with his then-wife, Mackenzie Scott

The fund focuses on promoting education and reducing homelessness. This article compares Amazon founder Jeff Bezos’ philanthropic initiatives to those of other billionaires, including Warren Buffett and Bill Gates.

View an illustrated history of Microsoft Solitaire, first released as part of the Windows 3.0 operating system in 1990 to help users get familiar with using a mouse.

If you'd invested $1K in Apple stock in 2005, you'd have roughly $130K as of 2025

Over the past 20 years, Apple stock generated an annualized total return of about 27.6%. Learn more about how those numbers came to be in this article.

Warren Buffett plays about 12 hours of bridge a week with Bill Gates

Known for being one of the most frugal billionaires alive, Buffett never spends more than $3.17 on breakfast (opting for either McDonald’s or Oreos). He also has New York Times front pages detailing horrible days on Wall Street hanging on his walls.

The top 100 companies in Silicon Valley

Silicon Valley has pumped out some of the biggest companies in the world, including Apple, Meta, and Google. Thousands of companies operate in the area, ranging from valuations in the trillions to startups only worth thousands.

Dating app Bumble Founder Whitney Wolfe Herd is considered the youngest self-made female billionaire.

More than 650 companies went public in the US in 1996

As the dot-com bubble reached its peak, most dot-com companies went public with little proof of being profitable and were often overvalued. In 1999, the Nasdaq's price-to-earnings ratio (a tool used to determine a stock's value that divides its price by earnings) hit 90.2, signaling that many companies were operating at a net loss. Startups promised investors that more time and money would help scale their businesses and become profitable.

How to visualize the enormous wealth of Elon Musk

The disruptive innovator and founder of SpaceX and Tesla is worth hundreds of billions of dollars, an unimaginable sum. This simple interactive visual uses pixels (representing $1K each) on a scrolling screen to demonstrate the billionaire's wealth compared to other known financial values, like the cost of building a Boeing 777 or the net worth of Tiger Woods.

Warren Buffett is considered one of the most successful investors in history

Buffett is the former CEO of Berkshire Hathaway, a local resident of Omaha, Nebraska, and a billionaire. People often refer to him as the "Oracle of Omaha."

Walmart was the first traditional retailer to crack the $1T club

In early 2026, the company joined major tech companies Nvidia, Apple, and Meta (among others) as one of the rare firms with a market capitalization beyond $1T. See the latest top companies here.

Worth more than $14T, Silicon Valley may be getting too expensive for future founders.

Warren Buffett has been criticized for avoiding investing in tech stocks during the 1990s dot-com boom, as he wasn't confident in the future growth of the tech industry.

Microsoft's Azure cloud computing platform serves customers in 140 countries

Rather than owning and maintaining hardware on-premises, cloud computing enables users to access large reserves of storage and processing power over the internet, much like customers connect to a utility provider rather than generating their own electricity. This centralization also standardizes security tools and updates.

Microsoft's Flight Simulator is one of history's longest-running software products

The program originated from a master’s thesis project on generating three-dimensional graphics, which was later combined with flight equations. The first version ran on the Apple II in early 1980, but its creator licensed the program to Microsoft two years later,

The number of publicly traded companies has decreased significantly

The stock market hit a peak in 1996, when more than 7,000 companies were publicly traded. But in 2024, there were nearly half that many publicly traded companies.

American CEOs are so wealthy in part because of stock buybacks, the process of a company purchasing shares of its own stock.

In 2025, American tech companies will spend $300B to $400B on AI

That is, in nominal dollars, more than any group of companies has ever spent to do anything. Notably, these companies are not remotely close to earning $400B on artificial intelligence.

Steve Jobs saved a nearly bankrupt Apple

Apple nearly went bankrupt in 1997, when the tech company had only three months of operational cash left. Apple's board ousted cofounder Steve Jobs in 1985, but he was brought back as interim CEO to revive the company when Apple purchased Jobs' company, NeXT.

The mean net worth for an American household is now $1M

That's according to 2024 data from the Federal Reserve. In 1848, just 50 households had achieved a net worth of at least $1M (roughly $40M in today's dollars). Millionaires have become significantly more common due to a multitude of factors, such as price increases in securities, inflation, and rising home values.