About Day One Angels
An early-stage angel fund investing in AI-first startups at the pre-seed and seed stages.
About the fund
Day One Angels is an angel investment fund focused on backing ambitious founders building AI-driven companies. We invest early — often before everything is polished — and partner with teams working toward their first institutional round.
Our approach is straightforward: high-conviction investments, long-term alignment with founders, and practical support when it’s most needed.
Why we exist
The earliest stages of company-building are often the hardest. Founders are making critical product and market decisions with limited resources and incomplete information.
Day One Angels was created to back strong builders early and provide honest, practical partnership as they grow.
How we invest
Stage
Pre-seed and seed investments, typically supporting founders as they prepare for or execute their first institutional raise.
Focus
AI-first products, applied AI, automation, infrastructure, and intelligent software platforms.
Approach
Selective investments with direct founder engagement and long-term alignment rather than high-volume investing.
Meet Our Founder
Josiah Shvartsakh
Day One Angels was founded by Josiah Shvartsakh, a technology entrepreneur and investor based in Palo Alto, California.
With a background in computer science and experience building technology products, Josiah brings an operator’s perspective to early-stage investing. His focus is on working closely with founders solving real problems through applied AI and software innovation.
The fund reflects a simple philosophy: back strong technical founders early, stay transparent, and build long-term partnerships grounded in execution and clarity.
Transparency
Day One Angels does not charge founders upfront fees for investment consideration, due diligence, introductions, or capital access.
If someone claiming to represent Day One Angels requests payment in exchange for investment, please contact us directly through this website.
Building an AI company?
If you are raising a pre-seed or seed round, we’d be happy to learn more about what you’re building.