Where does Brad Gessler work?

Brad Gessler is Founder/CEO of GBrain and Venture Partner at Pioneer and Founder at Poll Everywhere.

What check size does Brad Gessler write?

Brad Gessler typically writes checks of $100K – $5M.

What companies did Brad Gessler found?

Brad Gessler founded GBrain, Poll Everywhere.

Brad Gessler

InvestorFounder

Venture Partner at Pioneer · Founder/CEO at GBrain · Founder at Poll Everywhere

San Francisco, California

Writes $100K – $5M checks · typically $1.5M

FoundedGBrain · YC Poll Everywhere · YC

Find your path to Brad

10,470 people in our graph can introduce you to Brad.

Each arrow is one introduction. Sign up to fill in the first one.

Ask Garry Tan to introduce you to Brad

You →Garry · together at YC S08 (2008) →Brad

Ask Jamie Chen to introduce you to Brad

You →Jamie · 5 people · together at YC S08 →Brad

Ask Sam Okafor to introduce you to Brad

You →Sam · 6 people · together at YC X26 →Brad

Your email: the people you already email who know Brad
2nd- and 3rd-degree connections: people you know who worked, studied or invested with Brad
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We rank every route by how warm it is, so you raise on warm intros instead of cold emails.

Founder/CEO at GBrain YC X26

Intro paths

Brad went through Y Combinator (Spring 2026) — any YC alum in your network can reach them through the YC community.

Their group partner at YC was Garry Tan, President & CEO of Y Combinator — the partner who ran GBrain's batch and knows the company first-hand. YC profile ↗

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In turn, Brad can intro founders to GBrain's investors below.

GBrain's investors · 2

Transpose Platform ManagementSan Francisco Y CombinatorSan Francisco · $500K checks · since 2026

Co-founders at GBrain

Jamison MercurioFounder

Founder at Poll Everywhere YC S08

Intro paths

Brad went through Y Combinator (Summer 2008) — any YC alum in your network can reach them through the YC community.

→

In turn, Brad can intro founders to Poll Everywhere's investors below.

Poll Everywhere's investors · 2

Lowercase CapitalJackson Y CombinatorSan Francisco · $500K checks · since 2008

Co-founders at Poll Everywhere

Jeff VydunaFounder

Sean EbyFounder

Colleagues at Pioneer

Adam Gothelf

Venture Partner at Pioneer

Adam Stansell

Venture Partner at Pioneer

Alanna Gregory

Venture Partner at Pioneer

Alex Andon

Venture Partner at Pioneer

Alexander Girau

Venture Partner at Pioneer

Alexander Mistakidis

Investment Partner at Pioneer

Alexander Strunkin

Venture Partner at Pioneer

Amitav Chakravartty

Venture Partner at Pioneer

Frequently asked questions

Who is Brad Gessler?: Venture Partner at Pioneer
Where does Brad Gessler work?: Brad Gessler is Founder/CEO of GBrain and Venture Partner at Pioneer and Founder at Poll Everywhere.
What check size does Brad Gessler write?: Brad Gessler typically writes checks of $100K – $5M.
What companies did Brad Gessler found?: Brad Gessler founded GBrain, Poll Everywhere.