RECENT FUNDING
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Day One Ventures portfolio

Day One Ventures has 16 portfolio companies on record at Recent Funding.

Website: dayoneventures.com.
Type: Venture capital.
Portfolio on Recent Funding: 16.
Deals, last 12 months: 0.
Rounds led: 1 of 4.
Capital in their rounds: $181M.
Latest deal: Valar Atomics · Feb 19, 2025.
About this page

It is a venture capital firm based in San Francisco, US, founded in 2018. It led 1 of the 4 rounds it joined. Its most recent investment on record is Valar Atomics's $19M Seed round in February 2025, alongside Initialized Capital, Riot Ventures, AlleyCorp and 1 other. By category, its portfolio leans toward Health and bio (4) and AI agents (3). It has co-invested with AlleyCorp, Initialized Capital and Riot Ventures.

About Day One Ventures

Firm type: Venture capital.
Headquarters: San Francisco, US.
Founded: 2018.
Stages: Pre-Seed, Seed, Series A, Series B, Series C.
Sectors: AI & Machine Learning, Climate Tech, Consumer, Crypto & Web3, Data & Infrastructure, Deep Tech, Energy, Enterprise Software, Fintech, Future of Work, Media & Entertainment, New Materials, SaaS.
Check size: $100K to $5M.
Leads rounds: No.
Portfolio companies: 22.
Exits: 2.
Rounds led: 1.

Funds raised

FundFund #SizeAnnounced
DDay One Ventures
Bay Area
III$150M
forbes.com

What Day One Ventures invests in

Day One Ventures recent investments

CompanyRoundDateAlongside
VValar AtomicsSeed · $19MInitialized Capital, Riot Ventures (lead), AlleyCorp +1
AAffinitiround · $62MRiverPark Ventures, Soma Capital, Emigrant Capital +4
YYouSeries B+ · $50M · leadnone named
SSimulateSeries B+ · $50MLerer Hippeau, McCain Foods, Giant VC +6

How Day One Ventures invests

StageDealsCapital in rounds
Series B+ 2 50%$100M
Seed 1 25%$19M
round 1 25%$62M
YearDealsCapital in rounds
2021 1 25%$50M
2024 2 50%$112M
2025 1 25%$19M

Day One Ventures portfolio companies

CompanyRound with Day One VenturesTotal raisedLatest raise
VValar Atomics
Climate and energy
 Seed · $19M$1.6BAug 3, 2026
Series B+
AAffiniti
Fintech
 round · $62M$79MMay 20, 2025
Series A
YYou
AI agents
 Series B+ · $50M · lead$150MAug 21, 2026
Series B+
SSimulate
Commerce and retail
 Series B+ · $50M$57MJun 1, 2021
Series B+
AArtisan
AI agents
 backer · source$37MApr 9, 2025
Series A
NNetic backer · source$43MNov 13, 2025
Series B+
YYuzu
Insurance
 backer · source$35MApr 7, 2026
Series A
SSymbolica
Foundation models and research
 backer · source$31MApr 9, 2024
Series A
WWordware
AI coding and devtools
 backer · source$30.5MNov 21, 2024
Seed
DDurin
Robotics and hardware
 backer · source$3.4MApr 23, 2025
Pre-seed
OOrchid
Health and bio
 backer · sourceundisclosed—
IInspectRail
Developer tools and cloud
 backer$360KSep 21, 2026
Seed
MMarveri
Legal and compliance
 backerundisclosedMay 8, 2025
Seed
WWIVI Vision
Health and bio
 backer$4MSep 4, 2024
Series A
CCabal backerundisclosed—
PPublic Goods
Health and bio
 backerundisclosed—

Most frequent co-investors

Similar investors

Investors whose portfolios on Recent Funding center on the same category (Health and bio).

How this is counted

Firm profile: Fundraising Fox Open Dataset v2026-11, CC BY 4.0. Track-record counts are theirs, not Recent Funding's.

Venture funds Day One Ventures raised, from the list of new VC funds compiled by Shai Goldman (Brex). Each size links to the article that states it, or to that list where no article was found. All new funds: new VC funds.

Share is of the 4 rounds on Recent Funding that name Day One Ventures. Rounds with no announced date are left out of the year split, and "round" is a round whose stage is not on file.

Portfolio companies are the companies on Recent Funding with a round that lists Day One Ventures, which is a subset of its real portfolio. API: /api/v1/investors/day-one-ventures (get a free API key). More: the most active VC firms and new venture capital funds.