The transparency difference
Every formula is open source
27 interactive calculators and 80+ formulas are MIT-licensed. Read the Python source, verify the math, audit the derivation — nothing is hidden.
Every number is traceable
Each calculation traces to a textbook chapter, formula number, library version, and source commit. An immutable SurrealDB audit log records every run.
No paywall, no proprietary math
Why pay $49 per report when all 27 methods are free? The mathematics of startup valuation is public knowledge — it shouldn't be locked behind a subscription.
Trusted by auditors
Financial auditors can replay any valuation from inputs through formulas to results, and verify every step against the textbook source.
How we compare
Feature and pricing comparison against the leading commercial platforms.
| Platform | Pricing | Methods | Open Source | Audit Trail | API Access |
|---|---|---|---|---|---|
| Startup Valuation Engine (us) | Free | 27 interactive + 60+ MCP tools | ✅ MIT — every formula auditable | ✅ SurrealDB immutable audit log | ✅ MCP + REST, no key required |
| Equidam | $49+/report | 5 methods | ❌ Closed source | ❌ No audit trail | Limited |
| Carta (409A) | $2,000+/valuation | 1 method (409A) | ❌ Closed source | IRS safe-harbor only | Limited |
| PitchBook | $25,000+/year | Market data, no methodology | ❌ Closed source | ❌ No audit trail | Enterprise only |
| Kroll / Duff & Phelps | $10,000+/engagement | Audit-grade, manual | ❌ Closed source | Manual report | None |
Methodology, fully disclosed
Our formula reference is the Startup Valuation textbook (Mak, 2025). Every method page cites its chapter and formula number, links to the source commit, and shows the step-by-step derivation. No proprietary math — ever.