See design app Canva's original pitch deck for investors

Generate a powerpoint filled with 'consulting slop' for your business

Created by the consulting company NOBL, this AI generator mimics and mocks the vague and impersonal presentations sometimes shared by consulting firms.

Watch the DoorDash team's YC application video

In 2013, the cofounders of DoorDash created a simple, homemade video application to Y Combinator. They didn't know it at the time, but they'd be accepted—and their company would go on to be publicly traded on the NASDAQ.

‘Demo days’ are when founders at Y Combinator pitch their startup ideas

Investors sit in the audience, waiting to hear what this season’s batch of YC founders have cooked up. YC argues that going through the process of a demo day can help founders get a better understanding of their startup themselves.

2025 venture capital funding by destination, visualized

This chart's source, Dealroom, uses "breakout capital" to refer to funding rounds or companies in the $15M to $100M total funding range. It labels the startup stage as under $15M, and the scaleup stage as $100M+.

Startups fundraise in 'rounds' as they prove out their business and scale

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.

See Don Valentine's original 1977 memo for Sequoia's investment into Apple Computer

In honor of Apple's 50-year anniversary, Sequoia Capital recently posted a tweet on X (the social media platform formerly known as Twitter) with a photo of the original 1977 memo for Sequoia's investment in Apple.

Y Combinator changed the way startups around the world are built

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.

Convertible notes represent loans that startups owe investors

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.

Early-stage investors say ‘no’ to the vast majority of funding pitches

Angel investor Alicia Syrett details the top reasons investors turn down entrepreneurs. For example, the entrepreneur didn’t do their homework by, for instance, not researching the investor.

Seed funding is often the first round of capital that a startup raises

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

7 prominent investors rejected Airbnb in its early days

Airbnb is arguably known as one of the most successful startup stories of all time. But back in 2008, many prominent investors rejected their pitch when they went out to raise money—and Airbnb's founder still has the rejection emails to prove it.

Many startup founders pull out-of-the-box stunts to get their businesses off the ground.

Angel investors often come together as a syndicate

Startups raise money in different rounds from investors that include their friends and family, angels, and venture capital funds. These types of investors serve different purposes.

Meet the investor running his life with AI

Daniel Ha is a venture capitalist who built a suite of AI agents to boost his productivity, both professionally and personally. At his VC firm, a troupe of agents gathers data on startups and analyzes it from competing perspectives to produce a confidence score. When his dad was diagnosed with cancer, Ha used an oncology-trained AI to help him understand the condition.

Sam Altman gave his first-ever startup pitch after dropping out of Stanford

He dropped out of Stanford to start Loopt, which sold in 2012 for $43.4M. You can watch his first-ever startup pitch in a video.

More than 400 investors turned Peloton down in its initial funding rounds

Peloton founder John Foley said investors rejected the company's initial funding requests because there was no clear indication of what the market for at-home fitness classes looked like. Ultimately, more than 200 angel investors gave the company its first round of cash. (Some users may experience a paywall.)

Visualize the world's top 50 private equity firms in 2025 by capital raised.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company

Those revelations include the company's unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

Dive deep into the numbers that shape each YC deal

Y Combinator invests $500K into each company in any given batch. $125K of that investment converts into a fixed 7% in ownership of the startup, and the other $375K is invested on something called an uncapped MFN safe. YC explains what that means and more terms of the deal in a detailed article on their website

Startup founders’ equity becomes diluted as they bring in more investors

When an angel investor funds a company in exchange for equity, startups issue new shares to them, rather than giving them existing shares, and boost the company’s valuation.

Venture capital explained through Lego bricks

Platforms like AngelList help angel investors find startups to fund

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.

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public

A prospectus typically contains information about the company's operations, including details about its management team and their compensation, financial statements, how it intends to use any capital raised by the IPO, and more. While these documents can be dense and lengthy, experts say that some of the most important sections of a prospectus for investors to look at include the risk factors section and the use of proceeds section.

Understanding TikTok-owner ByteDance's business model

ByteDance has ridden TikTok's major success to become the world's most valuable startup. This deep dive showcases some of the company's smartest moves and tactics, and where it's headed next.

Y Combinator was founded in 2005 to bridge gaps between founders and investors

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.

YC was partly inspired by an investor named Julian Weber

Y Combinator Cofounder Paul Graham’s former professor’s husband Julian Weber provided $10K in seed funding to Graham’s previous startup, Viaweb in its early days. In exchange, Weber received 10% of the company. Weber’s involvement inspired Graham to start a program where investors were more involved with the companies they contributed seed funding to.

Listen to a podcast episode where Y Combinator CEO Gary Tan explains why YC tends to outperform many other Silicon Valley startup accelerators.

See how SpaceX compares to history's other largest IPOs.

Angel investors often receive significant equity because of the risk they take

Angel investors fund startups at an early stage, at which time a company’s success is less assured. In exchange, they often ask for a significant equity stake.

Startups follow a 'minimum viable product' strategy to determine demand

Michael Seibel, group partner for startup incubator Y Combinator, explains how to build a minimum viable product (also known as an MVP) for any startup idea. Using real companies that experienced the Y Combinator program as examples, he walks through how to determine an MVP feature set, how to present an MVP to potential investors, and more.

Facebook settled a lawsuit over Zuckerberg allegedly stealing the original idea for the company for $65M

While at Harvard, three students (Cameron Winklevoss, Tyler Winklevoss, and Divya Narendra) approached Mark Zuckerberg with the idea for a platform exclusively for Harvard students called ConnectU. Those students sued Facebook, alleging that Zuckerberg stole the idea from the trio.

Startup accelerators offer mentorship and seed funding in exchange for equity

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.

Explore Bessemer's anti-portfolio of missed opportunities

From Pinterest to Yelp, Bessemer Venture Partners—one of the most well-known VC firms—has invested in many successful companies over the years. But the firm has also kicked itself for passing on a few great opportunities, like Apple and Google. Check out the other companies in Bessemer's "anti-portfolio" here.

How venture capital firms came to be

The venture capital firm that kickstarted an industry.

WeWork filed its first S-1 in 2019

When WeWork prepared to file for its initial public offering in 2019, its S-1 revealed its poor financial state to the public.

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.

WellHub is a startup serving roughly 4 million people in 11 countries, providing broad wellness benefits to employees

Valued at $2.4B in 2025, the company helps workers get gym access and meditation apps, in addition to basic healthcare. Listen to the founder of the company, Cesar Cevalho, explain how he scaled the company with Jeff Berman.

7 angel investors funded Google in its early days

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.

Stanford’s ‘How to Start a Startup’ series

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.

In 2023, venture capital firms invested $170B in over 15,000 US companies

That's a significant drop from 2022’s $242B, reflecting market uncertainty but continuing VC’s role in scaling transformative ideas. Rooted in early risk-sharing models, venture capital took off with firms like ARDC in 1946, later evolving into today’s influential players like Sequoia Capital and Andreessen Horowitz.

More than $3.5B has been invested through AngelList

AngelList was created to connect startups and angel investors. It’s evolved since its 2010 founding and has been used by companies like Uber and OpenSea.

WeWork’s S-1 was full of alarming financial and business information that concerned investors and the public

When WeWork’s S-1 came out, investors were particularly concerned about WeWork’s expenses far outpacing its growing revenue and its complex company structure, as well as a few potential conflicts of interest within the company.

Airbnb’s S-1 in 2020 revealed how it weathered the pandemic and its financials

An S-1 or prospectus is a registration form filed with the US Securities and Exchange Commission when a company wants to go public. They can be pretty juicy documents, as S-1s can reveal previously private details about companies to the public, often for the first time.

Find out how venture capitalists make decisions

More than 30% of venture capital deals come from leads courtesy of a VC’s former colleagues or professional network. You can learn more about how venture capitalists decide which companies to invest in by reading this article.

WeWork marketed itself on community

In a new era of work where many millennials wanted to work for themselves in offices with exposed brick, cold brew on tap, and casual dress codes, WeWork realized these entrepreneurs and startup workers didn’t want to do it alone.

Listen to a podcast episode that explains how the Chinese discount e-commerce retailer Temu became one of the most downloaded apps in the US.

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.

ChatGPT was conceived over dinner at a Silicon Valley hotel.

Cyan Banister, once homeless, was an angel investor in Uber, SpaceX, and DeepMind.

One Facebook investor turned $500K into $1B

Peter Thiel was Facebook's first big investor. In 2004, he invested $500K into the social network, long before the company owned Instagram or renamed itself "Meta." In 2012, when he sold off most of his stake, he turned that initial $500K investment into more than $1B in cash.