Skip to content
Lengdon · Resources

RESOURCES.

Documentation, market insights, reference material, and free tools for founders and investors navigating private capital.

Platform

Documentation

Getting started guides, closing sequence reference, API docs, and security controls. Everything needed to deploy and build on Lengdon.

Getting started
Closing sequence reference
Audit & records
API & webhooks
Explore documentation →
Insights

Blog

Articles on private capital markets, closing infrastructure, institutional finance trends, and product thinking from the Lengdon team.

Market analysis
Product updates
Founder interviews
Transaction insights
Explore blog →
Updates

Changelog

What's new in Lengdon — feature releases, improvements, and deprecations. Presented in reverse chronological order.

New features
Improvements
API changes
Platform reliability
Explore changelog →
Reference

Glossary

Definitions of key terms in private capital transactions, closing infrastructure, and Lengdon's platform. Updated as the platform evolves.

Transaction terms
Closing sequence terms
Investor categories
Platform concepts
Explore glossary →
Free

Tools

Interactive calculators for founders and investors — valuation, burn rate, runway, cap table, SAFE conversion, dilution modeling, and COGS. Calculate your runway →

Valuation calculator
Burn rate & runway
Cap table builder
SAFE note calculator
Explore tools →
Reference

Sectors

How Lengdon applies across technology, life sciences, PE buyouts, SPVs, family offices, and emerging markets.

Technology & SaaS
Life sciences
Private equity
SPV & syndicates
Explore sectors →
Free

Templates

Ten annotated documents for founders and investors — convertible notes, SAFE, due diligence, data rooms, NDAs, investment memos, and LP updates.

Convertible note & SAFE
Due diligence checklists
Investment memo & LP update
Data room index
Explore templates →

Ready to close your first transaction?

We're not onboarding new accounts right now. Join the waitlist and we'll reach out.