Firm & fund profile / Sourced portfolio
Andreessen Horowitz
Tracked participation in 43 Atlas companies, with 42 explicitly attributed leads.
Firm website ↗43portfolio companies
123round participations
42lead positions
$15Bled round total
Conviction
Most recent leads
The latest rounds this investor is sourced as leading, newest first.
Jul 2026AtomsEquity investment (a16z-led) with merged Atoms equity structure$1.7BMay 2026AndurilSeries H$5Bat $61B valuationDec 2025HarveySeries F$160Mat $8B valuationSep 2025Periodic LabsSeed (founding round)$300Mat $1.3B valuationAug 2025EliseAISeries E$250Mat $2.2B valuationJul 2025Ambience HealthcareSeries C$243Mat $1.3B valuation
Capital activity
Portfolio
CompanyLatest valuationFirst → latestRoundsRoleLatest round
A
Atoms—Jul 2026 → Jul 20261 round1 ledEquity investment (a16z-led) with merged Atoms equity structure
O
OpenAI$852BMar 2026 → Mar 20261 roundParticipantCommitted capital round (strategic + financial investors)
PL
Periodic Labs$7BSep 2025 → Mar 20262 rounds1 ledReported fundraising discussions (not confirmed as closed)
W
Waymo$126BMar 2020 → Feb 20264 roundsParticipantInvestment round (led by Dragoneer Investment Group, DST Global, Sequoia Capital; Alphabet majority investor)
WL
World Labs$1BApr 2024 → Sep 20243 rounds1 ledSeries A (or unicorn-status priced equity round; reported as $230M across two rounds)