Andreessen Horowitz Overview
Andreessen Horowitz is one of the most influential venture capital firms in the world. Marc Andreessen and Ben Horowitz founded it in 2009 with the thesis that software would eat the world. Today the firm manages $42B+ across dedicated funds spanning American Dynamism, Bio, Consumer, Crypto, Enterprise, Fintech, Games, and Infrastructure.
What makes a16z different is its platform model. The firm employs over 100 operators across marketing, recruiting, business development, and regulatory affairs. When a16z invests, portfolio companies gain access to this full team. This model has been widely imitated but never replicated at a16z's scale.
For European candidates, a16z is relevant because the firm has been expanding its European presence through portfolio company support and selective investments. The London office has grown, and the crypto fund has been particularly active in European blockchain infrastructure.
a16z AUM
Andreessen Horowitz manages $42B+ across multiple sector-specific funds. The firm raises separate vehicles for crypto, bio, games, infrastructure, and American Dynamism. Each fund has its own dedicated team and investment thesis. The firm's total team exceeds 400 people — making it one of the largest VC firms globally by headcount.
a16z Key People
- Marc AndreessenCo-founder & General Partner
- Ben HorowitzCo-founder & General Partner
- Martin CasadoGeneral Partner, Enterprise
a16z Portfolio
a16z Interview Process
a16z runs a structured multi-round process. Early rounds cover fit — your background, why venture, and what sectors you care about. Middle rounds involve technical or sector-specific discussions with GPs from the relevant fund. The final round is a case study where you evaluate a company and present an investment recommendation.
The firm tests for genuine intellectual curiosity about technology and the ability to form contrarian views backed by evidence. a16z partners write extensively — if you cannot engage with their published thinking on a topic, you are not ready to interview.
a16z Careers
a16z hires at Analyst, Associate, and Partner levels. Most junior hires come from top investment banks, consulting firms, or operators at portfolio companies. The firm also has a large platform team where non-investment hires support portfolio companies across recruiting, marketing, and go-to-market strategy.
For European candidates, the London office is the relevant entry point. Engaging with a16z content — particularly their sector-specific newsletters and the a16z podcast — is the minimum bar for demonstrating interest.
More on a16z
a16z Podcast — weekly deep dives on technology and investing