Modeling

Cap Table Sim

Dilution math for every round.

Model every priced round, SAFE, option grant, and waterfall in advance. Walk into your term sheet conversation knowing the answer cold.

Sound familiar?

You shouldn't need a finance team to answer this

The everyday questions this module makes simple.

Dilution is a black box

You sign the round and only work out what it cost your stake afterwards.

SAFEs stack in confusing ways

Three SAFEs and an option pool, and nobody's sure who owns what post-money.

The 'standard' term costs you

You accept a pool top-up without seeing the bite it takes out of founders.

A founder working through dilution math for every round.
See it in motion

Model the round before you sign

Add a round and watch ownership dilute, the option pool shift, and the exit waterfall redraw, see who ends up with what.

Example view
Cap Table Sim, illustrative sequence
ROUNDS
Unlimited
PER COMPANY
OUTPUT
Waterfall
AT ANY EXIT
DILUTION
Mapped
BEFORE YOU SIGN

Illustrative, capabilities and typical targets, not guaranteed outcomes.

Dilution math for every round., a founder using Startup Suite
Modeling

The morning you sign

Dilution math for every round.

The term sheet looks fair until you see what it does to your ownership three rounds out. Cap Table Sim maps every SAFE, priced round, and pool change in advance, so you walk into the conversation knowing exactly what 'standard' costs you.

  • Import from Carta, Pulley, or a spreadsheet
  • Stack SAFEs, convertibles, and priced rounds
  • See the waterfall at any exit price
What you can do

Decisions you can make this week

Practical calls this module helps you get right, no finance background needed.

How much you'll own after the round
See your founder stake from today through to exit, round by round.
How big the option pool should be
Right-size the pool without a painful reshuffle next raise.
What an exit actually pays each holder
Run the waterfall at different prices before you agree to terms.
What it does

The capabilities that earn the work.

01

Round modeling

Stack SAFEs, convertibles, and priced rounds with full pre/post math.

02

Waterfall analysis

See exactly who gets what at every exit price.

03

Option pool sizing

Right-size pools without painful re-shuffles round to round.

04

Founder dilution map

Track your stake from today to exit across every plausible path.

How it works

From signal to decision.

  1. 1

    Import the table

    Pull from Carta, Pulley, or upload your spreadsheet.

  2. 2

    Stack the rounds

    Sequence your next raises with valuation, amount, and pool targets.

  3. 3

    Run the waterfall

    Test exit prices from $50M to $1B and see the splits.

  4. 4

    Negotiate informed

    Walk into the term sheet with the diluted picture already mapped.

Good to know

Questions founders ask

Does this replace legal or tax advice?+

No. Cap Table Sim helps you understand the math so you can ask better questions, it isn't legal, tax, or financial advice. Always confirm terms with your counsel.

Can I bring in my existing cap table?+

Yes. Import from Carta or Pulley, or upload a spreadsheet to start.

SAFE or priced round, can I compare both?+

Yes. Model each path side by side and see how your ownership lands under either.

Get started

Make this the last spreadsheet you build

Build your plan, connect your data, and see this working on your own numbers, no finance team required.

From idea to investor-ready · built for founders, not finance teams