She Helped Build a16z's $7.6 Billion Crypto Empire. Now She's Going Alone.

Arianna Simpson left one of the most powerful seats in crypto venture capital to back the next generation of founders on her own terms. The industry is watching every move.

‍$7.6B — Raised at a16z Crypto

6 yrs — As General Partner

2013 — First Bitcoin Investment

At 22, Arianna Simpson watched hyperinflation destroy ordinary people's savings in real time. She came home, emptied her bank account into Bitcoin, and never looked back. Thirteen years later, that instinct has made her one of the most respected investors in crypto  and now she's betting everything on herself.

On January 24, 2026, Simpson announced on X that she was leaving Andreessen Horowitz after six years as General Partner of its crypto arm  one of the most prominent seats in digital asset investing. She is now building an independent fund, expanding her investment scope across multiple crypto verticals and into adjacent spaces including AI infrastructure. Chris Dixon publicly called her a foundational figure in the industry on her way out the door.

Simpson's path was earned, not handed. She joined BitGo in its earliest days in a sales and product role, wrote one of the most-read early posts on multisignature Bitcoin wallets, then founded Crystal Towers Capital and later Autonomous Partners  a crypto hedge and venture fund that backed Talos and Dapper Labs before either name meant anything to the mainstream.

A16z recruited her as Deal Partner in 2020. She was promoted to General Partner within a year. At the firm she was a central voice in two landmark fund raises: the $2.2 billion third crypto fund in 2021, and the $4.5 billion fourth fund in 2022  the largest dedicated crypto VC raise in history at the time.

She stayed and invested through the 2022 market collapse, when many competitors retreated. That discipline is now hers to deploy on her own terms.

"Her investment framework will continue to influence how I think about this space for the rest of my career."

— Arianna Simpson, on departing a16z

Simpson's new fund is expected to go broader than a16z's pure-play crypto focus  potentially bridging blockchain infrastructure with AI and decentralised finance. The details remain close-hold. What isn't: every serious founder in Web3 is paying attention to where she places her first independent bets.

For female founders and investors entering crypto, Simpson is the rare through-line: technical credibility earned early, institutional scale built at the world's most powerful VC firm, and now the independence to define what comes next. In an industry that still skews heavily male, her move is both an outlier and a signal. The next generation of crypto's biggest companies will be funded by someone. Simpson is making sure she has a say in who.

"She is an early crypto advocate who made several notable investments. Her next chapter will be one to watch."

— Chris Dixon, Founder, a16z Crypto

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