📈 CapLab · Cap Table Simulator

See exactly where your equity goes, round by round.

Build your cap table once, then test new rounds in a sandbox and watch dilution, ESOP pools, and the option pool shuffle play out before you sign anything.

Free to use · Results with a free account · Exports to Excel & PDF

thefoundersstack.com/caplab
NewLabs Inc.Pre-Series A · Live Registry
$8.4MPost-money
$1.71Price / share
HolderClass%
FoundersCommon68.0%
Seed FundPref18.0%
ESOP PoolOptions10.0%
AngelsPref4.0%
Founders Seed Fund ESOP Angels

Most founders meet their cap table for the first time inside a term sheet, when it's already too late to change it.

A cap table is just a spreadsheet until you have to defend it. Then suddenly there's a new lead, a bigger option pool, an anti-dilution clause, and a price that quietly moves every number you thought you understood. CapLab lets you play all of that out ahead of time, so you walk into the room already knowing where your ownership lands.

How it works

From blank table to boardroom-ready in four steps.

1

Build your live registry

Add holders, share classes, and share counts. CapLab derives your fully-diluted total and price per share automatically, and auto-saves as you go. Haven't raised yet? Flip the pre-funding toggle and it works from face value instead.

Live Registry
HolderClassShares%
Asha (CEO)Common2,400,00040%
Ravi (CTO)Common1,680,00028%
Seed FundPref1,080,00018%
ESOP PoolOptions600,00010%
2

Simulate a new round in the sandbox

Add a lead investor, set the pre-money and the cheque, and add a new option pool. Watch every holder's ownership recalculate instantly, including the option pool shuffle that most term-sheet maths quietly hides from you.

Round Simulator · Sandbox
$5.0MPre-money
$2.0MRaise
+10%New pool
HolderBeforeAfter
Founders68.0%47.6%
Series A Lead28.6%
Seed Fund18.0%12.6%
ESOP Pool10.0%11.2%
3

Compare scenarios, promote the winner

Save as many named scenarios as you want, line them up side by side, and when you've settled on the structure you want, promote it to your live cap table in one atomic step.

Scenarios
ScenarioFounder %Pre-money
Base case47.6%$5.0M
Optimistic52.1%$6.5M
Conservative43.0%$4.0M
4

Export, or send it straight into the next tool

Download a clean PDF or Excel for your data room, or push the cap table directly into TermLab to model the term sheet, or into ESOPLab to manage the option pool you just created.

Export
📄Export to PDF
📊Export to Excel (.xlsx)
📜Send to TermLab →
🎁Send to ESOPLab →
What's inside

Built for the questions founders actually get asked.

🔀
Option Pool Shuffle
See how a pre-money option pool dilutes founders, not investors, and exactly what it costs you in ownership.
🏷️
Every share class
Common, Preference, CCPS, SAFEs and convertible notes, each modelled correctly instead of lumped together.
🌱
Pre-funding mode
Haven't raised yet? Work from face value and paid-up capital instead of a valuation you don't have.
🧪
Scenario sandbox
Model unlimited what-ifs without touching your real cap table, then promote the one you like to live.
💾
Auto-save & exports
Everything saves as you type. Export a clean PDF or Excel for your data room in one click.
🔗
Flows into the stack
Push your cap table straight into TermLab and ESOPLab so you never re-enter the same numbers twice.
See it move

Watch a cap table get built in 60 seconds.

A quick walkthrough from blank registry to a fully modelled Series A.

Part of the stack

CapLab is step 2 of your raise.

It plugs into the tools on either side, so your numbers carry through the whole journey.

Know your cap table before they do.

Build it, simulate the round, and walk in already knowing where you land.

Open CapLab free →

Free to use · Results with a free account