The term 'startup'—which is typically used to describe private companies in their early stages of operation that focus on innovating new products or services to meet a market gap—can be traced back to a 1976 Forbes article.

They also differ from small businesses in that startups have a higher level of risk, may take on outside funding from venture capital firms to boost growth, and more.

Tech is still the dominant industry for startups—in part due to its low barriers to entry, high growth potential, investor preferences, and the proliferation of tech into a wide variety of industries. Sweetgreen, the fast-casual salad chain, for instance, has often referred to itself as a tech company.

Some argue that ideal startup employees have to be better than the average worker at managing uncertainty, acting with an "ownership" mindset rather than being a cog in the machine, and pushing limits.

Stanford’s archive of lectures about creating a startup includes advice from Y Combinator notables such as former YC president and OpenAI CEO Sam Altman and YC Cofounder Paul Graham.

According to startup expert Alex Wilhelm, a company cannot be considered a startup if it generates revenue exceeding $50M, employs more than 100 people, and has a valuation of $500M or more. However, Wilhelm modified the rule in 2018 to $100M in revenue, over 500 employees, and a valuation of $2.5B or more.

The venture capital firm that kickstarted an industry.

If you’ve heard of companies like Google and Yahoo, you’re already partially familiar with the dot-com bubble: a period from roughly 1995 to 2001, when internet companies were the hottest thing in venture capital. The “bubble” part of the term refers to the industry’s eventual implosion.

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.

Household name companies such as Airbnb and Uber might not exist without venture capital, which is commonly referred to as "VC" for short.

In 2024, Y Combinator cofounder Paul Graham popularized the idea of "founder mode" when he wrote a viral manifesto in response to a talk that Airbnb CEO Brian Chesky gave about leadership styles. Graham positioned the concept of founder mode as the opposite of manager mode—when founders hire executives and middle managers to run their companies and make decisions that Graham says are better left to founders.

When startups take on outside funding, those investments are divided into different "rounds." These rounds are catered to different stages in a startup's life cycle—a startup often needs different types of investors and amounts of funding at different stages of the business. For instance, a pre-seed investment round can include investments ranging from about $25K to $500K, whereas a Series D investment can be hundreds of millions of dollars.

That's according to a new study from Wharton. Y-Combinator, perhaps the most famous startup accelerator, currently has 16 alumni companies trading on the public market. But not every entrepreneur who joins a startup accelerator makes it big.

Not all startup founders are created equal. This data visualization of the universities that produce the most startup founders is based on the number of alumni who have raised venture capital funding for their companies. That means these alums had to do much more than put "entrepreneur" in their LinkedIn bio to be considered startup founders.

The startup accelerator has funded more than 5,000 companies over the years. This YC-specific search engine lets you look up any company to find out if it's a YC alum.

Early-stage startups often try to secure seed funding from investors in order to take their idea from concept to reality.

Angel investors leverage their high net worths to fund seed-stage startups. While they could see high returns, investing in such an early company is a risk.

Many of the philosophies that the leaders of Y Combinator have infused into the program’s portfolio companies have become the playbook for building the next big thing, such as its focus on founder personality and more.

Those programs, such as Y Combinator and Techstars, not only offer expert advice to founders, but also seed funding in exchange for equity. The goal is to help young startups learn from successful companies, making it more likely they attract venture capital.

In the 2010s, dozens of female founders were celebrated on the covers of business magazines like Inc. for their recent startup success, from Emily Weiss’s Glossier makeup brand to Steph Korey’s Away luggage company. But many of these companies were also the subject of large takedown articles around the year 2020.

The people who bought the original domains for dot-com companies and had the ideas to start businesses were often bought out by investors before becoming well-known companies. Both Pets.com and Broadcast.com were acquired early on.

While the aforementioned whaling industry has a lot of similarities to today’s venture fund models, the first modern venture capital firm wasn’t founded until 1946.

In 2024, Y Combinator Cofounder Paul Graham wrote a viral manifesto of sorts about a strategy he calls "founder mode." It's the opposite of what Graham calls "manager mode," which allows founders to hire executives who he says ultimately run the company into the ground.

The level of startup funding around the world broke all previous records in Q1 2026 by a significant margin: Only $118B was raised in the previous quarter, and Q1's haul outpaced every full year of global VC activity before 2019. The increase was partly due to the enormous funding rounds from AI companies such as OpenAI and Anthropic.

Silicon Valley gained its name from an article published in January 1971, in Electronic News. Author Don Hoefler used the term in his headline for an article he was writing about the semiconductor industry. Hoefler is credited with naming the multi-trillion dollar area that is still called Silicon Valley today.

A look at the dot-com bubble, when investors poured money into unproven internet startups, driving the Nasdaq to dizzying heights before it crashed by more than 80% after 2000, showing how new technologies can detach markets from reality.

The company behind the browser that revolutionized search went public on August 9, 1995. Just before the IPO, the company increased its initial opening price from $14 to $28. On the day the company went public, shares traded as high as $71 before closing at $58.25. The company's market capitalization exceeded $2B. The eye-popping IPO is largely considered the beginning of the dot-com bubble.

This website keeps track of startups with "no-shoes" offices so you can browse a list of barefoot companies—plus, see which of them are hiring.

The first so-called angel investors funded theatrical productions. Now, angels invest in startups at an early stage, hoping their investment will pay off in the future.

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.

This article from 2016 is a time capsule of sorts. It includes an interview with the person who coined the term “girlboss,” Nasty Gal founder Sophia Amoruso, that took place just after she appeared on the cover of Forbes magazine. We now know that her company would go on to file for bankruptcy the next year.

Twitter began in 2006 as a side project and grew into a major global platform, widely used for news, activism, and political discourse. Despite mainstream success, it faced ongoing management turmoil, business struggles, and rising concerns over misinformation and user safety.

Entrepreneur Shaan Puri shares how seven strangers acted as Google’s earliest angel investors. The first gave Google $100K without even putting his equity agreement in writing. The investors on “Shark Tank” use their personal funds to support startups, but they’re often more predatory about terms than typical angels.

In 2023, Singapore had the highest venture capital funding per capita in the world. But that doesn’t necessarily mean it’s the best place to have a startup. In 2023, PitchBook analyzed data to determine the world’s best startup city, including fundraising activity, venture capital deals, and exit value. San Francisco ranked as No. 1. See which other locales landed in the top 20 with this graphic.

By the year 2002, PayPal went public for the first time—but that was far from the end of its business story. eBay later bought PayPal, then eventually spun it off. PayPal IPO'd for a second time in 2015.

Examples include Andreessen Horowitz’s TxO (Talent x Opportunity) Initiative and Fifth Star Funds, which allows donors to write “Friends & Family” checks for Black tech founders.

Angel investors and venture capitalists both invest in startups, but they differ in a few key ways. Angel investors typically invest earlier and in a smaller amount.

Between 1995 and 2000, the Nasdaq Composite index jumped from roughly 1,000 to 5,000 amid excitement over new internet companies. As venture capitalists dumped money into startups, those same companies struggled to turn a profit, leading to a bubble. The Nasdaq wouldn't reach its former high until 2015.

In March 2005, Y Combinator cofounder Paul Graham announced the program that would become Y Combinator on his website.

Books were just the start, as founder Jeff Bezos' ultimate goal was to create an "everything store," using the internet to transcend the physical limitations of brick-and-mortar retail. The Seattle-based Amazon gradually added CDs and consumer electronics, becoming a dominant e-commerce player in the late 1990s, and one of the few dot-com companies to make it through the bust.

In one of Paul Graham’s essays on his website, he took the time to explain how and why he and his cofounders (including his girlfriend at the time, and now wife, Jessica Livingston), came up with the idea of and eventually created Y Combinator.

With Peter Thiel's "Monopoly Theory," the Founders Fund partner argued that investing in companies that create new categories, rather than those that compete with other businesses in existing ones, is a best practice in venture capital.

Founded in 1982, E-Trade was the first-ever online brokerage, pioneering a method of investing that is common today. Its story is part of a timeline that the New York Times put together of key moments in early fintech history.

In the second part of a two-part series, convertible notes are explained to be a tool angel investors use to ensure they see a return on their investment in a startup.