Andreessen Horowitz is a Menlo Park venture firm investing from seed to late stage across consumer, enterprise, bio, crypto, fintech and games. Its stack reads like an operating company: multi-cloud AWS, GCP and Azure, Kubernetes, Python with scikit-learn, plus a triple device-management setup (Jamf, Kandji, Intune). Accelerating, marketing-led hiring alongside security and platform projects points to investment in events, content and internal infrastructure.
Notable leadership hires: Marketing Lead
Andreessen Horowitz, known as a16z, is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz and headquartered in Menlo Park, California. The firm invests in technology companies at every stage, spanning consumer, enterprise, bio/healthcare, crypto, fintech and games. General partners bring operator backgrounds, and operating teams give portfolio companies access to talent, marketing and enterprise networks. The privately held firm employs 201–500 people and hires in the United States.
a16z uses Salesforce, HubSpot, Workday, Anaplan, Okta, Slack, Notion and Airtable, with engineering on Python, PostgreSQL, Elasticsearch and Kubernetes across AWS, GCP and Azure.
Yes. Hiring is accelerating in the United States, led by marketing, with engineering, sales, security and executive roles also open, including a Marketing Lead position.
Job posts point to observability and monitoring tooling, internal developer platform adoption, a vulnerability management program, SaaS integrations, and automation pipelines.
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Andreessen Horowitz's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.