Day One Ventures

Venture capital · San Francisco, California

Day One Ventures is a venture capital firm based in San Francisco, California. 59 portfolio companies, 4 recorded rounds and 5 funds are on record.

AUM
—
Portfolio companies
59
Recorded deals
4
1 in last 12M
Last investment
Nov 2025

Deal history

4 participations
DateCompanyRaisedRole
Nov 2025Valar Atomics▮▮
Feb 2025Valar Atomics▮▮
Jan 2025AstroForge▮▮
+ 1 more deals · all 4, priced and dated
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Investment activity

Day One Ventures joined 3 recorded rounds in the last two years (1 in the last 12 months), up from 1 in the two years before. By year: 3 in 2025 and 1 in 2023. Day One Ventures is recorded as lead on 1 of them. Most recently: Valar Atomics (Series A, Nov 2025) and Valar Atomics (seed round, Feb 2025).

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