Decision tools for builders who need better numbers before the next conversation
Builder of Builders turns valuation, ownership, dilution, and tax assumptions into useful estimates founders, investors, operators, and startup employees can actually discuss.
Educational, not generic
Each tool shows the math, flags the assumptions that move the outcome, and turns the result into next actions. Use the samples to learn the model before entering your own information.
SaaS Valuation Calculator
For SaaS founders, operators, investors, and M&A advisors.
Estimate valuation ranges from ARR, growth, retention, concentration, market position, and readiness factors buyers care about.
Equity Exit / Investor Return Calculator
For angel investors, founders, employees, advisors, and fund investors.
Model take-home proceeds after dilution, preference stacks, taxes, QSBS treatment, holding period, and state assumptions.
Educational Company Examples
For founders and operators learning how companies progress through funding stages.
Browse educational case studies of well-known companies and how they moved through funding and growth stages. Educational only — no investment advice, no returns.
Investor Scenario Explorer
For founders and operators learning how early ownership dilutes across rounds.
Explore how an assumed early investment is illustratively diluted as a company raises later rounds. Educational only — no returns, no advice.
BLDR Pitch Rooms
For founders and deal teams sharing sensitive investor materials.
Password-gate pitch rooms, avoid viewer accounts, and capture page-level engagement, session history, and follow-up intent.
Scenario Planner
For teams comparing multiple fundraising, exit, or acquisition paths.
A coming-soon planning workspace for comparing scenarios side by side and turning calculator outputs into decision briefs.
How to use these estimates
Start with a sample
See how the model behaves before you enter real company or ownership data.
Run a quick estimate
Get a useful directional answer from the few assumptions that matter most.
Improve the inputs
Advanced details reveal what changes valuation quality, tax drag, and actual take-home proceeds.