FounderStack

Cold emails don't work.
Warm intros do.

Founders swap investor intros so you get meetings, not ghosted.

Invite-only. Ask a member for a code.

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THE PROBLEM

Investors get 100+ perfect pitches
a day. All AI-written. All identical.

The one that gets opened? The one with a name they trust in the subject line.

Investor inbox — Tuesday 9am
AI-generated pitch — Fintech SaaS
AI-generated pitch — ML Infrastructure
AI-generated pitch — Climate Platform
AI-generated pitch — Health Analytics
"Hey Sarah, I think this founder is relevant for you."

THE HIDDEN ASSET

THE OBVIOUS

Investors who backed you

They wrote you a check. They know your space. When they intro you, investors take the meeting.

JS
Jane Smith
Sequoia
Invested
MC
Mark Chen
a16z
Invested
BOTH
LEAD TO
INTROS

THE INSIGHT

Investors who passed on you

They said no to your deal — but they know you personally. That's not a dead end. That's a warm intro for another founder.

DP
David Park
Accel
Passed
LW
Lisa Wang
Index
Passed

Every investor you've met is a warm intro someone else needs.

HOW IT WORKS

Three steps to your next meeting.

01

Add your investors

Upload every investor you've spoken to — backed or passed. That's your intro currency.

02

AI finds your matches

Our AI matches you with founders whose investors are relevant to you — and yours to them.

03

Trade intros, get meetings

You intro them. They intro you. The investor sees a trusted name and takes the call.

TWO UNFAIR ADVANTAGES

Your network opens doors.
AI picks which ones.

You bring the relationships. AI figures out which founders to connect you with and which investors to trade — so every intro actually moves your raise forward.

Founders get you in the room

An intro from someone the investor trusts beats the best cold email ever written. Every time.

AI picks your best matches

AI scores every possible match by stage, industry, geography, and investor overlap — so you only see founders worth connecting with.

NETWORK

See who wants the investors you already know.

Browse matched founders, see how many relevant investors they have, and connect to start trading intros.

SK
Sarah K.
DataFlow · B2B SaaS
4 investors
Connected
WL
Wei L.
ClearPay · Fintech
3 investors
Connect
MR
Mia R.
Canopy · Climate
6 investors
Connect
AI MATCH SIGNALS
B2B SaaS
Seed
US West
$1-3M
You
Your startup
Seed · Fintech
92%
RELEVANCE
AK
Alex K.
Seed · Fintech
3 relevant investors identified

AI MATCHING

Not random intros. Relevant ones.

AI scores every match by industry, stage, geography, and ticket size — then tells you exactly which of their investors are worth an intro.

BUILT ON TRUST

Nobody sees your investors until you allow it.

Matches start anonymous. Both founders must opt in before anything is revealed. Then AI shows only the investors that matter.

01

Anonymous match

AI finds a relevant founder. You see their industry, stage, and investor count — but not their name or identity.

02

Both say yes

Both founders must accept. If either passes, nothing is shared. No names, no investors, no data leaked.

03

AI shows what to trade

Connected. Now AI scores each other's investors by relevance and tells you exactly which intros are worth swapping.

Your investors are invisible until you explicitly share them. Period.

WHY NOW

Everyone has the same tools.
Nobody has the same relationships.

AI leveled the field

Every founder can write the perfect pitch now. Your unfair advantage is who you know — and who knows you.

Inboxes are drowning

100 cold emails a day, all AI-perfect. The only signal left? A warm intro from someone real.

Founders help founders

One intro from you gets one intro back. The more you give, the more meetings you get. It compounds.

Stop cold emailing.
Start trading intros.

Founders on FounderStack get meetings through warm intros, not cold outreach.

Invite-only. Ask a member for a code.