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Marc Andreessen @ Andreessen Horowitz (a16z)

Verdictconfirmed95%
2 checks · 1 src · 4/29/2026

1 → partial; dissent: 1 → confirmed

Our claim

entire record
Role
Co-founder & General Partner
Role Type
career
Start Date
2009
Is Founder
Yes
Notes
Co-founded VC firm a16z; invested in major AI companies; previously co-founded Netscape and Mosaic

Source evidence

1 src · 2 checks
confirmed95%Haiku 4.5 · 4/27/2026

NoteRe-check. Previous verdict: partial. Verdict changed.

partial95%qua650-retro-scan-subject-identity · 4/21/2026

NoteQUA-650 retro-scan: The source is a biography of Marc Andreessen as an individual, not about Andreessen Horowitz (a16z) as an organization. Per QUA-648, a person and their company are different entities and count as MISMATCHES. While the source mentions Andreessen Horowitz and confirms Marc's role there, the primary subject is Marc Andreessen himself, not the firm.

Case № bgd5isVyoJFiled 4/29/2026Confidence 95%
Source Check: Marc Andreessen @ Andreessen Horowitz (a16z) | Longterm Wiki