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Geoff Ralston Email & Contact Information

Partner @ Y Combinator

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Geoff Ralston Location

Sunnyvale, United States

Geoff Ralston Work

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Geoff Ralston Investing

Partner at Y Combinator

Stages
Pre-seed, Series A, Seed
Sectors
Health tech
Cheque size
€138k–€138k
Freshness
Verified 1mo ago

Geoff Ralston Summary

Geoff Ralston, based in Sunnyvale, United States, is a Partner at Y Combinator. Geoff Ralston invests in Health tech at Pre-seed, Series A and Seed, writing €138k–€138k cheques. Geoff Ralston brings experience from Raltech, LLC, California Clean Tech Open, Yahoo! and Four11, Inc. Geoff Ralston's verified email and contact details are available on Mintround.

How to cold email Geoff Ralston

Geoff Ralston, Y Combinator in Sunnyvale, United States, backs Health tech companies at Pre-seed, Series A and Seed, writing €138k–€138k cheques. Here's how to get a reply when you cold email Geoff:

  • Subject line: name your company and one metric that matters to Health tech, not “quick chat”.
  • First line: your strongest traction, the real numbers, not adjectives.
  • One ask: a 20-minute call with a date range. Keep it under 150 words.
  • Send it to Geoff's verified address below. No warm intro required.
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Notable investments

Frequently co-invests with

Ronny ConwayA Capital2×Tim BradyY Combinator2×Adrian AounAlex SokAlireza MasrourPlug & Play VenturesAneel RanadiveSoma CapitalBen OrthliebLinkedinBrad FloraY CombinatorBrian PokornySV Angel LLCBryan FristFriáleChad ByersSusa VenturesCharlie Songhurst

Geoff Ralston's colleagues at Y Combinator

Jon LevyManaging Director, Y Combinator
Carolynn LevyPartner, Y Combinator
Kirsty NathooPartner, Y Combinator
Brad FloraPartner, Y Combinator
Reshma KhilnaniPartner, Y Combinator
Garry TanPresident, Y Combinator
Immad AkhundUnknown, Y Combinator
Diana HuPartner, Y Combinator
Michael SeibelPartner, Y Combinator
Ali RowghaniUnknown, Y Combinator
Ben HuhUnknown, Y Combinator
Harj TaggarManaging Partner, Y Combinator
Surbhi SarnaPartner, Y Combinator
Aaron EpsteinPartner, Y Combinator
Gustaf AlströmerPartner, Y Combinator
Nicolas DessaignePartner, Y Combinator
See all 17 at Y Combinator →

Similar investors

Jennifer GriffinPartner, Mission BioCapital
Jeffrey SilversteinPartner, Andreessen Horowitz
Christopher R. ShepardVenture Partner, Apollo Health Ventures
Dimi BarotPartner, Wavemaker Three-Sixty Health
John PrufetaGeneral Partner, Medical Excellence Capital, LLC
Jacob SmithPartner, Cannage Capital

Related lists

Health tech investorsPre-seed Health tech in United StatesSeries A Health tech in United StatesSeed Health tech in United States

Frequently asked questions

How do I contact Geoff Ralston?
Geoff Ralston, Partner at Y Combinator, can be reached by email. The verified email address is listed on this page.
What is Geoff Ralston's email address?
Geoff Ralston's email address uses the blog.ycombinator.com domain (shown as *****@blog.ycombinator.com until revealed).
What does Geoff Ralston invest in?
Geoff Ralston backs Health tech companies at Pre-seed, Series A and Seed, typically writing €138k–€138k cheques.
How do I cold email Geoff Ralston?
Geoff Ralston backs Health tech companies at Pre-seed, Series A and Seed, writing €138k–€138k cheques. A concise cold email that leads with relevant traction and one specific ask, sent to the verified address on this page, is the most direct way to reach Geoff.
Where is Geoff Ralston based?
Geoff Ralston is based in Sunnyvale, United States and works at Y Combinator.

Every contact is a verified, deliverable email. How Mintround verifies contacts.

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