{"entity":{"id":"a16z-bio-health","kind":"company","name":"Andreessen Horowitz Bio + Health","aka":[],"tldr":"The life sciences and healthcare arm of the Silicon Valley venture firm Andreessen Horowitz (a16z). It backs founders who mix biology, software and care delivery, including a small number of cancer drug and diagnostics start-ups.","summary":"Andreessen Horowitz was founded in 2009 in Menlo Park by Marc Andreessen and Ben Horowitz (Wikipedia). Its Bio + Health team describes itself as partnering with founders 'redefining the frontiers of medicine and healthcare', from life sciences to care delivery, with a team that combines former founders and operators with MDs, PhDs and technologists. The practice invests from seed to growth and is best known for computational biology and health-system software rather than classic biotech company creation. Oncology appears through precision medicine bets: the Bio + Health page lists IDRx (targeted therapies for gastrointestinal stromal tumours) and Cartography Biosciences (tumour-specific antigen discovery for cancer immunotherapy), alongside AI drug discovery firms such as Genesis and insitro.","asOf":"2026-09-10","links":[{"label":"Official website","url":"https://a16z.com/bio-health/"},{"label":"Portfolio","url":"https://a16z.com/portfolio/"},{"label":"Wikipedia","url":"https://en.wikipedia.org/wiki/Andreessen_Horowitz"}],"tags":["vc"],"related":[],"cancers":[],"sections":[],"technologies":[],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":["Founded year is for the parent firm (Wikipedia). The a16z portfolio page is rendered client-side; oncology names were taken from the Bio + Health landing page."],"hq":"Menlo Park, CA","country":"US","companyType":"investor","website":"https://a16z.com/bio-health/","founded":2009,"investors":[],"funding":[]},"route":"/companies/a16z-bio-health/","neighbours":{"company":[{"id":"alpha-9-oncology","kind":"company","name":"Alpha-9 Oncology","route":"/companies/alpha-9-oncology/"},{"id":"thyme-care","kind":"company","name":"Thyme Care","route":"/companies/thyme-care/"},{"id":"valar-labs","kind":"company","name":"Valar Labs","route":"/companies/valar-labs/"}]}}