BUILD CONVICTION ZERO-TO-ONE. SURFACE SIGNAL

FounderOS
Your Proof Engine.
FounderOS is the front door — free to activate, built to get you moving. It challenges your UVP, runs structured experiments, and logs your traction over time. Membership, Signal Showcase selection, and venture partner visibility come next.
Free to activate.
No application required.
Start with FounderOS → Join as a Member
01
Describe Your Thesis
Share your startup, stage, and what you're trying to prove. FounderOS maps your conviction gaps before you build.
02
Challenge Your UVP
The PMF Proof Agent stress-tests your unique value proposition against real market signals and surfaces what's unproven.
03
Run & Log Experiments
Weekly experiments feed your traction log — timestamped, tracked, and indexed so momentum compounds over time.
04
Show Up In Person
Stack momentum through IRL Founder Labs — weekly human loops with visiting venture partners and experienced operators.

LA · NY · SF · Seattle · Chicago
Includes
Intelligence Vault
PMF Proof Agent
Experiment Framework
Traction Log
Signal Showcase Eligibility
Signal Index
RTC founders momentum log — timestamped, diligence backed, conviction indexed.
Companies in RTC
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#001
✅ Track
Equal IQ
1
Entry Point
a16z TXO
2
Engine
Joined RTC
3
Stage
Signal Showcase
4
Pitch Win
NBA All-Star · Amex
Traction
$500K Closing
Signal Index #001 · AI · Vertical SaaS · March 2026
View Full Signal Card →

For those of you who push boundaries, challenge assumptions, and log dark miles before the world wakes.

Dare to run with it.

Join Community →

Validate PMF →

Log Experiments →

Showcase Momentum

Join Community → Validate PMF → Log Experiments → Showcase Momentum