Exit Waterfall Workshop, October 15 Save a seat
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Plan and run your company

Software, tools, and models to raise a round, run the business, and report to your board, plus the workshops and help to go with them. Every model is open source and pay what you want.

4.8(447)·Building models since 2005

Not sure which one is yours? Answer five questions and I’ll point you at it.

Exact math for the decisions that matter

Cap tableIn browser

Model rounds, SAFEs, option pools, and dilution with exact ownership math.

Free browser use and account saving; compute $20/year
Exit waterfallIn browser

Run an exit through preferences, participation, caps, and conversion, and see who gets what.

Free browser use and account saving; compute shares the cap-table plan
RunwaySpreadsheet

Cash, burn, and months of runway from a cost plan.

$20 suggested, pay what you want
ValuationSpreadsheet

Venture valuation from expected exit, ownership, and target return.

$20 suggested, pay what you want

For developers and agents.

Start from a proven structure

Open source under Apache 2.0, pay what you want.

Standard Financial Model

Five-year forecast for revenue, costs, hiring, statements, cap table, and valuation.

$199 suggested, pay what you want
Runway Tool

A monthly cash forecast for knowing when to hire, when to cut, and when to raise.

$20 suggested, pay what you want
Cap Table and Exit Waterfall Tool

Ownership through every round, option grants, and who gets what at an exit.

$20 suggested, pay what you want
SaaS Forecasting Tool

Subscription growth, MRR and ARR, churn and expansion, self-serve or sales-led.

$20 suggested, pay what you want
Ecommerce Forecasting Tool

Cohort forecast with historical import, new and repeat AOV, CAC, inventory.

$20 suggested, pay what you want
Unit Economics Tool

LTV, CAC, and payback on one sheet, before you commit to a five-year build.

$20 suggested, pay what you want

All models.

Learn by building

Live, hands-on sessions where you leave with the thing you came to build: a cap table, a waterfall, and the confidence to explain both.

Cap Table WorkshopNext live October 22, 2026

A practical workshop on cap tables, what they are, why they matter, and how they evolve as you raise capital and issue equity. Hands-on format with AI-assisted modeling.

$175, lifetime access
Exit Waterfall WorkshopNext live October 15, 2026

A practical workshop on exit waterfalls. Who gets what, in what order, and why. Ownership, preferences, and dilution in real exit scenarios.

$175, lifetime access

All workshops, docs, and quizzes.

Work with Hemrock

Sometimes the model is not the problem. You need someone in it with you.

Working session

An hour on your model, your numbers, or your AI setup, or a review of a model or workflow you built with AI.

$395, 1 hour
Custom model

A revenue model, fund forecast, or cap table built for your business, delivered working and documented.

Quote

All services.

“Very impressive. Incredibly comprehensive. Taylor is quick to respond to any queries.”
Edward Abt · Operator

Also for investors

Running a fund, a syndicate, or an angel portfolio? The fund models, the reporting software, and the fund workshops live on their own page.

For investors

Learn it first

Workshops, docs, and quizzes on modeling a business, reading a cap table, and editing a model with AI without breaking it.

Learn by building
Taylor Davidson

Taylor Davidson

Building financial models and tools since 2005. Fractional CFO, advisor, and the person on the other end of support.

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