NOBODY SHOULDHAVE TO ASKWHERE THE DEAL STANDS
Every document, condition and signature, visible to both sides in one room. Private beta.
THEAPPEND-ONLYRECORD.
Every action is written to a permanent, append-only log where each entry references the one before it. Altering an earlier entry breaks that reference — visibly, and permanently.
Condition Precedent Met: Regulatory Approval
Term Accepted: Board Seat (Investor)
Document Released: Cap Table (Pre-Money)
SEE LENGDON CLOSE
Book a private demo
30 minutes. We'll show you a live transaction from Room setup to Close. No sales pressure — just the product.
PROCESS
An enforced closing sequence. Each step requires the one before it. The order is enforced by the system — not by convention.
COUNSEL
At the start of closing, either party may bring in legal counsel, or both may agree to proceed without. Either way, the decision is recorded.
AGREEMENT
Each party independently confirms their intent to proceed. No single confirmation can trigger the next step. Both must act; neither can force the other forward.
CONDITIONS
Each condition precedent is added to the checklist and tracked until satisfied. The step itself is enforced — the transaction cannot advance to Signing until every condition is marked complete.
SIGNING
Transaction documents are executed in sequence by each party. No joint session — each signs in their own time, in their own jurisdiction, with their own counsel present.
PAYMENT
Investor confirms transfer. Founder confirms receipt. Both confirmations are required to proceed. The system records each action independently.
CLOSE
Mutual confirmation seals the record permanently. The complete audit trail stops accepting new entries and stays accessible to both parties. Nothing changes after this point.
INFRASTRUCTURE,
NOT PARTICIPANT
Lengdon is closing infrastructure for private capital. It begins when two parties have already decided to talk, and ends when the transaction closes or is declined — leaving a permanent, verifiable record either way.
SECURITY
& TRUST
Encryption at rest and in transit; mandatory multi-factor authentication; role-scoped access; per-person NDAs; the append-only record; no money movement, no custody, no escrow.
Read the Privacy Policy →
WHO IT'S FOR
Lengdon is built for every party in a private capital transaction — not just the two principals. Each role gets the access and record they need, separated by design.
VC Firm
You deploy capital across a portfolio. You need closing infrastructure your legal, compliance, and operations teams can rely on — consistent room structure, an enforced closing sequence, and a record that stays intact for the life of each room.
READY
TO CLOSE?
Join the waitlist and we will reach out as onboarding opens.
