A private ledger for objects that appreciate
Thesauri gives serious collectors, family offices and specialist garages one secure place to manage cars and art — provenance, valuations, documents, and everything that proves what a piece is worth.
A great collection deserves more than a spreadsheet.
Thesauri holds the whole story of every car and artwork — how it was acquired, what it is worth, where it lives and who has touched it. Share exactly what you choose with a gallery, auction house, insurer or family office, and nothing more.
One quiet record
For collectors
Record VIN, registration, specification, logbook, ownership, mileage and valuations in any currency with live FX. For art, keep artist, medium, dimensions, edition, provenance, condition reports, certificates, exhibitions and literature together.
For family offices
See passion assets and the paperwork that matters at audit and succession in one place. Role-based access and field-level permissions keep each adviser focused on precisely what they need.
Sharing
Create an expiring link for one piece or a whole selection. Choose view-only or view-and-edit, watermark images, see who opened it, then revoke access in one click.
Export a polished PDF/A dossier whenever you need one.
Transport & customs
Keep shipments, condition-on-arrival and international paperwork together — ATA Carnet, CITES, commercial invoices and temporary-admission tracking.
Reminders arrive before a carnet or permit expires.
On every device
Add a car from the paddock. Photograph a document on delivery. Complete a maintenance checklist and sign it directly on screen.
The same private record, at your desk or in your hand.
How it works
Start with five cars and five artworks, free for as long as you like. No card.
Import or add each piece with its photographs, documents, people and valuations.
Thesauri keeps the record current with reminders, valuation history and dossiers.
English · Deutsch · Français · Italiano · Español
Discretion by design
Every workspace is isolated at the database level. What is yours stays yours.
Swiss-hosted
A discreet European home for every record.
Encrypted
In transit and at rest, without exception.
Two-factor authentication
A second safeguard at every sign-in.
Tenant isolation
Your collection is never visible to another workspace.
Append-only audit trail
A durable record of every action.
Precise access
Role-based and field-level permissions.
Pricing
Billed yearly in CHF. Prices are also available in EUR, USD and GBP. Swiss VAT is added for customers in Switzerland only.
Getting started
CHF 0
per yearThe focused collector
CHF 1,250
per yearA serious collection
CHF 2,400
per yearLarge estates & teams
CHF 7,200
per yearFamily office / institution
CHF 9,600
per yearEvery paid plan includes a 14-day free trial. No credit card to start.
Start free, or arrange a private walkthrough.
