/Investor DB

Day One Syndicate

Angel network

Seattle · Pre-Seed–Late Stage · 8 people tracked

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Investment thesis

Day One is an angel syndicate focused on supporting former-Amazon founders launching startups. It invests when a co-founder or executive is an Amazon (or Amazon subsidiary such as Twitch or Ring) alumnus, when co-investors are Amazon alumni or Amazon investment vehicles like the Alexa Fund, or when an Amazon alumnus sits on the company's board. The syndicate can invest across stages from pre-seed to pre-IPO, with a sweet spot between seed and Series A. It is stage-agnostic, does not lead rounds, and does not seek board seats, relying on its community to source opportunities and sharing carry with those who refer deals.

Source: firm website, verified Oct 2, 2026.

Stage
Pre-Seed–Late Stage
HQ
Seattle, US
Leads rounds
Follows
Instruments
Equity
Tracked investments
6
Acquisitions
1

Team · 8 people

from the firm's website
Sean Sternbach· Syndicate Lead
Brenda Campbell· Due Diligence
Chris Gonzales· Due Diligence
Daniel Gould· Syndicate Advisor
Kevin Crosby· Investor Relations
Marion Desmazieres· Investor Relations
Sara Marker· Designer
Thibaut LaBarre· Back Office

What they invest in

from 6 of 6 portfolio companies

AI & Machine Learning ×3SaaS ×3Advanced Manufacturing ×1Developer Tools ×1EdTech ×1Enterprise Software ×1Gaming ×1Marketing Tech ×1

HQs:United States×4India×1

Investments · 6 tracked

founders shown can be your intro path
Blokableblokable.com

Advanced ManufacturingClyde Hill, US

Aaron Holm(Executive Officer, Director, Promoter)

Co-investorsBuilding VenturesKnockout CapitalManta Ray VenturesPrelude VenturesVU Venture PartnersCercano Management+4 more

Codingalcodingal.comin𝕏Seed · Sep 2021

Codingal offers online after-school programs combining human teachers and AI-powered learning to teach coding, AI, math, and public speaking to K-12 students globally.

AI & Machine LearningEdTechBengaluru, IN

Vivek Prakash(Founder)inSatyam Baranwal(Founder)inNeha More(HR Team Lead)Nikhil Kumar(Product Manager)Subrina Lepcha(Senior Talent Acquisition Manager)Joel Jacob(Talent Acquisition Associate)

Co-investorsRebright PartnersY CombinatoraVentureGSF AcceleratorNurture Venture PartnersJava Capital+2 more

Dendrondendron.so

Dendron is a note-taking and personal knowledge management tool that supports hierarchical note organization and workflows such as journaling and the PARA method.

Developer ToolsSaaSSeattle, US

Kiran Pathakota(Founder)

Co-investorsCommunity Access Fund

Latchellatchel.comin𝕏

Latchel provides maintenance management and virtual resident concierge services for property management companies across the US.

AI & Machine LearningEnterprise SoftwarePropTechSaaSSeattle, US

Ethan Lieber(CEO)inWill Gordon(COO)inJullian ChavezElisa Rhynedance(HR Administrator)

BoardJiang Lin(Director)

Co-investorsBain Capital VenturesAllegion VenturesCerity Partners VenturesCommunity Access FundF-Prime CapitalMetaProp+9 more

Spiralspiralup.coinAcquired

Spiral Up is an AI agent that analyzes customer reviews, live chats, and calls to surface insights for businesses.

AI & Machine LearningMarketing TechSaaSSeattle, US

Co-investorsAlumni VenturesAscend Venture CapitalCommunitas Capital PartnersCommunity Access FundGeneral CatalystTechstars+4 more

Ventureoutstartupsventureoutstartups.com

SALDO33 VENTUREOUTSTARTUPS is a browser-based business simulation game set in a modern virtual world where players build and manage a virtual company by making strategic decisions about production, marketing, and expansion.

Gaming

Frequently asked questions

How many investments has Day One Syndicate made?
Day One Syndicate has 6 tracked investments, 1 of which have exited.
What stage does Day One Syndicate invest at?
Day One Syndicate invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
What sectors does Day One Syndicate focus on?
Day One Syndicate focuses on EdTech, Enterprise Software, SaaS, Sector Agnostic.
Where is Day One Syndicate located?
Day One Syndicate is headquartered in Seattle, US.
Does Day One Syndicate lead rounds?
Day One Syndicate typically participates in rounds rather than leading them.
Who does Day One Syndicate co-invest with?
Day One Syndicate most often shares deals with Community Access Fund, General Catalyst, Manta Ray Ventures, among 21 tracked co-investors.

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