Who it's for / Investors
Invest with a record.
Every deal you participate in through Lengdon is structured, sequenced, and permanently recorded — so the record of your diligence and the terms you agreed to is yours to keep.
The problem we solve
Diligence rarely leaves a record worth keeping.
Founders send materials over email and a shared folder, with no enforced order and no signed confirmation of what was actually disclosed under what terms. Six months on, if a number in the deck ever becomes disputed, there's nothing to point to that shows what you saw and when.
How it works for investors
A structured room, from invitation to close.
Founders invite you into a sequenced deal room. Every step is enforced — you see exactly what stage the deal is at and what remains before close. Run the cap table before you commit → You sign your own NDA, not a catch-all company-level agreement — your access is individually logged and keyed to your identity. Every outstanding condition is tracked in real time: regulatory approvals, board consents, third-party sign-offs, all mapped against the close sequence.
Why the record matters
A permanent audit record.
At close, the full deal record locks in place — append-only, nothing further can be edited or removed by either party. It's the same record the founder sees, not a summary reconstructed afterward, and it survives long after the wire clears.
What we don't do
We don't recommend deals.
There is no matching, no scoring, no deal-flow feed to browse. You decide who to fund; the room runs what happens after that decision, not before it.