TypeSafe AI
Developer infrastructure that turns unstructured inputs into typed decisions and probability scores for automated software workflows.
$870MSeries A
ParticipantSC
Sequoia Capital
sequoiacap.com ↗Activity from announced rounds
Activity in this selectionOct 22, 2026 · AI · Sep 23, 2026
Sequoia Capital backs founders from the earliest stages of company formation through growth. Arc is its entry point for pre-seed and seed teams.
Arc is Sequoia’s twice-yearly open call for pre-seed and seed founders. The programme includes a four-day intensive focused on customer understanding, product-market fit, team building and growth strategy.
Sequoia can invest before a business has revenue or even a settled product idea. Its Arc materials describe backing NVIDIA as a founding team and Wiz before its initial idea was fixed, illustrating the company-formation stage at which a founder can engage.
Sources
- Rounds participated in
- 5
- Confirmed lead rounds
- 1 All roles disclosed
- New companies
- 4 First participation on record · 1 follow-on
- Funding in participating rounds
- $1.9B 4 disclosed · full round size, not this investor’s share
By stage
By primary sector
By country
Rounds
5 in this selectionHealthleap
Healthleap develops clinical AI software that helps hospital teams identify patients needing further assessment.
$8MSeed
LeadRobCo
Develops AI-driven robotic systems for industrial automation and autonomy
UndisclosedPrimary investment and employee secondary transaction
ParticipantInstinct
Develops a personal AI assistant that carries out everyday tasks through text and phone calls.
$1BSeries C
ParticipantSilk
Cloud data infrastructure for running demanding applications and AI workloads against live production data.
$45MGrowth capital facility
Participant