How much of your company will you own after the next round?

Model dilution, ESOPs, and investment scenarios in seconds — without spreadsheet gymnastics or heavyweight cap table software.

Built for pre-seed and seed founders who want to understand dilution before they raise.

Model your cap table nowSee an example
Built for real fundraising scenarios
Founder-friendly modelling
Lighter than heavyweight cap table tools

Know the answer before you sign

Drag the sliders to model a funding round and watch ownership change in real time.

£4.0M

£1.0M

10%

Founders
Investors
ESOP

Founders

70.0%

was 100%

Investors

20.0%

new

ESOP

10.0%

option pool

Post-money

£5.0M

valuation

Raising £1.0M at a £4.0M pre-money valuation with a 10% ESOP leaves founders with 70.0% ownership.

See dilution instantly

Understand exactly how much of the company each round gives away — before you agree to anything.

Compare different raise scenarios

Model different valuations, cheque sizes, and future rounds to see how your ownership changes over time.

Model ESOP properly

See how option pool creation or expansion affects founders, investors, and future dilution.

Understand bridge and interim dilution

Test how bridge funding and interim rounds affect ownership before your next priced raise.

Share scenarios with co-founders and advisers

Keep everyone aligned on the numbers before investor conversations get serious.

Keep sensitive planning private

Explore funding scenarios without sending fragile spreadsheets back and forth. All data AES encrpted at rest.

Why founders use Simple Cap instead of spreadsheets or heavyweight tools

Spreadsheets

  • Flexible, but easy to break
  • Hard to share cleanly
  • Painful to update every time assumptions change

Heavyweight tools

  • Powerful, but often overkill at pre-seed and seed
  • More setup, more process, more cost
  • Built for later-stage complexity

Simple Cap

  • Fast to use
  • Focused on fundraising scenarios
  • Built to answer “what happens if…” quickly

Built for the stage before you need a full cap table platform.

Founder-friendly pricing

Start free, then upgrade only if you need more. No bloated enterprise pricing. No paying hundreds a month just to model dilution.

Free

$0

forever

1 project · unlimited rounds

Pro

$25

/month · cancel anytime

Unlimited projects · unlimited team members

See full pricing details →

Frequently asked questions

Who is Simple Cap for?

Simple Cap is designed for pre-seed and seed founders, startup operators, and anyone who wants to understand dilution before a funding round.

Is this a replacement for legal advice?

No. Simple Cap helps you model ownership and dilution scenarios so you can make better decisions and have better conversations. Final legal documents should always be reviewed properly.

Why not just use a spreadsheet?

You can — but spreadsheets are easy to break, hard to share cleanly, and frustrating to rebuild every time assumptions change. Simple Cap is built to answer fundraising scenario questions faster.

Do I need this if my cap table is still simple?

That's exactly when it's most useful. Early fundraising decisions have a big impact on founder ownership, and they're often made before companies adopt heavier software.

Can I try it before committing?

Yes. Start free and explore your scenarios before upgrading.

Model your next round before you sign anything

See how valuation, cheque size, and option pools affect ownership — in minutes, not spreadsheets.

Model your cap table now

Start free.