Brian Nichols is the co-founder of Angel Squad, a community where you’ll learn how to angel invest and get a chance to invest as little as $1k into Hustle Fund's top performing early-stage startups

David Sacks has one of the cleaner origin stories in venture capital. He joined Confinity in 1999, a startup trying to beam money between Palm Pilots. He pivoted the product to web-based payments, helped build out sales and marketing, and when eBay acquired PayPal in 2002 for $1.5 billion, Sacks walked away with enough capital to do whatever he wanted next. He founded enterprise social network Yammer in 2008, sold it to Microsoft in 2012 for $1.2 billion, and co-founded Craft Ventures in 2017. By 2023, Craft had $3.3 billion in assets under management. In December 2024, President Trump appointed him White House AI and crypto czar. David Sacks investments have been defined by the same thing throughout: finding companies with strong network effects and backing them before the market figures out what they are.

The PayPal Mafia Advantage

The PayPal mafia is a real phenomenon, not just a Silicon Valley nickname. The group of early PayPal employees and founders, including Elon Musk, Peter Thiel, Reid Hoffman, and Sacks, have collectively backed or built some of the most important technology companies of the last two decades. What they share is a common operating vocabulary developed during one of the most intense company-building experiences in startup history.

Sacks has said that PayPal was uniquely valuable as a training ground because it required solving payments, fraud, international expansion, and viral growth simultaneously, all at a time when none of the playbooks for those problems existed yet. That experience made him an unusually strong pattern matcher when evaluating early-stage companies.

His angel investments before Craft reflect this. He backed Facebook, Uber, SpaceX, Palantir, and Airbnb before any of them were obvious. Those aren't lucky bets. They're the output of someone who spent years developing a mental model for what network-effect businesses look like in their early stages.

Craft Ventures and the SaaS Playbook

Craft, which Sacks co-founded with partner Bill Lee, has backed over 20 unicorns. The portfolio includes Affirm, Airbnb, Bird, ClickUp, Eventbrite, Lyft, OpenDoor, Reddit, Slack, and Wish, among others. The firm has raised four main funds and two growth vehicles, bringing total AUM to $3.3 billion as of 2023.

What distinguishes Craft from many funds of its size is how public Sacks has been about the investment framework. This kind of transparent, operator-informed investing is exactly what Angel Squad trains its members to develop. He invented the "Burn Multiple" metric, which measures how much a company spends in net burn for every dollar of new ARR generated. A burn multiple below one is excellent. Above two is a warning sign. This kind of quantitative discipline is embedded into how Craft evaluates and supports portfolio companies, and it has become widely adopted across SaaS investing.

Elizabeth Yin, Hustle Fund GP, has been consistent in arguing that the best early-stage investors combine thesis clarity with operational depth. Sacks is a textbook example of both. He has been unusually transparent about his thinking through his writing, the All-In podcast he co-hosts with Chamath Palihapitiya, Jason Calacanis, and David Friedberg, and his public commentary on SaaS efficiency metrics.

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The Crypto and AI Positioning

Sacks has been a vocal advocate for cryptocurrency and blockchain technology for years. Craft has backed multiple Web3 companies, and Sacks personally invested in Bitcoin, Ethereum, and other digital assets before selling those holdings to avoid conflicts of interest when he took the White House role in late 2024. His appointment as AI and crypto czar signals both his credibility in those spaces and the degree to which his investment thesis has tracked toward the policy frontier.

On the AI side, Craft has invested in Glue, an AI-powered workspace chat tool Sacks co-founded in 2023 with former Craft colleague Evan Owen, launched to the public in May 2024. The firm's broader AI portfolio reflects a thesis consistent with Sacks' public commentary: AI will be most valuable when embedded into specific workflows in under-digitized industries, not just layered on top of existing software.

Eric Bahn, Hustle Fund GP, has talked about the importance of investors having genuine conviction about how technology shifts will unfold, rather than chasing categories reactively. Sacks has been building around that kind of conviction for twenty-five years.

Angel Squad: Building the Mental Models That Win

David Sacks investments are the product of decades of operating experience translated into investment judgment. Most angel investors don't have that kind of background, but the mental models are learnable. Angel Squad brings together 2,500 investors across 50 countries who are actively working to develop the kind of thesis-driven, operator-informed approach that Sacks exemplifies. Members invest alongside Hustle Fund in real deals and get access to live education sessions, a deep community of operators-turned-angels, and the deal flow that comes from Hustle Fund's network. If studying David Sacks investments has you thinking about how to sharpen your own framework, hustlefund.vc/squad is where that work happens.

The Takeaway

David Sacks built a career around one consistent insight: network-effect businesses are undervalued in their early stages because most investors can't see past the current numbers to the structural dynamics underneath. Facebook was expensive on any 2004 metric. Airbnb seemed absurd in 2009. Coinbase was speculative until it wasn't. The lesson for early-stage investors is that the framework matters more than the current traction. Build the mental model, stay consistent, and be willing to look wrong for a while.