Andreessen Horowitz

Founded by Marc Andreessen and Ben Horowitz, the firm is registered as an investment adviser, which lets it hold assets — including cryptocurrencies and public shares — that traditional venture partnerships cannot.

Its most copied innovation was building large in-house teams for recruiting, marketing, and business development, positioning the firm as a service provider rather than only a capital source.

The firm organises around distinct sector funds — crypto, bio and health, games, and a defence and industrial thesis it calls American Dynamism — each with dedicated teams.

Its public argument has consistently been that software continues to absorb more of the economy, and that specialist capability beats generalist coverage.

• Separate funds by sector with dedicated investment teams
• Large operating staff supporting portfolio companies
• Registered investment adviser status allowing broader asset holding
• Extensive public content and media operation
• Leads at seed through growth depending on fund

Coinbase · GitHub · Airbnb · Slack · Databricks · Roblox · Instacart · Anduril

Marc Andreessen and Ben Horowitz co-founded the firm. Chris Dixon leads its crypto practice; Katherine Boyle and David Ulevitch lead the American Dynamism practice.

The operating platform is genuinely substantial, but access to it depends on the size of the position — smaller investments receive proportionally less.

The firm's public profile means its portfolio companies attract attention early, which cuts both ways.