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Andreessen Horowitz

@a16z

We invest in software eating the world.
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Weeks posts
What Unicorn Founders took at University. Source: SignalFire
1,709 20
20 hours ago
Brian Chesky on the three stages of building a company.
1,022 11
1 day ago
Palmer Luckey sold Oculus VR to Facebook for $2 billion in 2014, just two years after launching the company from his garage. After leaving Facebook, Luckey shifted from consumer tech to the defense world, founding Anduril Industries to build AI-powered surveillance towers, autonomous drones, and software platforms for the U.S. and allied militaries. In parallel, he launched ModRetro, a niche hardware venture focused on reimagining classic game consoles with modern engineering rather than nostalgia alone. Today, Luckey straddles three unusual legacies at once: a VR company that helped redefine immersive computing, a defense contractor reshaping how Western militaries buy and deploy technology, and a retro-hardware lab rooted in the same enthusiast culture that first drew him into building machines.
4,431 44
2 days ago
8 Key Startup Terms for Every Founder
2,476 16
3 days ago
Jakub Pachocki, born in Gdańsk, Poland, won the Google Code Jam world championship in 2012 before going on to become OpenAI’s Chief Scientist. Sam Altman has called him “easily one of the greatest minds of our generation.”
2,358 19
4 days ago
Startup Rounds, Explained.
3,614 41
7 days ago
How long it took companies to go from idea, to product, to PMF. Source: Lenny’s Newsletter
3,102 20
8 days ago
Mark Zuckerberg launched Facebook from his Harvard dorm room in 2004 as a simple directory for college students. He quickly expanded it beyond campus, dropped out to build the company full-time, and turned a student side-project into the world’s largest social network. Over two decades, Zuckerberg has steered the company through the rise of News Feed, mobile, Instagram, and WhatsApp. More recently, he rebranded Facebook as Meta and shifted focus toward AI, betting on long-term platforms beyond the phone screen. Today, the product he started at 19 remains one of the most used social apps on earth — Meta reports over 3.5 billion people use at least one of its apps every day across Facebook, Instagram, WhatsApp, Messenger, Threads, and others.
6,209 83
9 days ago
The top universities for producing startup founders. Ranked by the number of undergraduate alumni who have raised venture capital in the last decade. Source: PitchBook
9,845 161
10 days ago
Founded in 2022 by Mati Staniszewski and Piotr Dąbkowski, ElevenLabs has since grown from a $2 million pre-seed to an $11 billion valuation. This post breaks down the pre-seed deck that ElevenLabs used to raise $2 million in January 2023 - the round that launched the beta platform and set everything in motion.
5,613 52
11 days ago
In 2007, Marc Andreessen popularized the term “product-market fit” in a blog post titled “The Only Thing That Matters” - defining it as “being in a good market with a product that can satisfy that market.” He argued it was the single most important factor in a startup’s success or failure. This post looks at how long it took 28 of the world’s most recognised companies to get there. From immediate fit to a decade in the making. Source: Lenny’s Newsletter
6,142 57
14 days ago
Elon Musk’s advice on How to Build a Startup. Source: GQ
5,362 46
15 days ago