Built for sensitive exchanges. Trusted by design.
Nestor lets organizations manage all their sensitive digital exchanges (collections, transfers, signatures, reminders) in secure, confidential spaces.
- Fully sovereign European hosting
- No account to create for the people you work with
Choose a tab to read each step.
Collect
Forms, document requests, and information: gather everything you need in one place.
They exchange their documents with Nestor
- organizations using Nestor
- 63
- users, including 7,271 external contacts
- 7,563
- secure spaces, including 5,952 active
- 8,451
- messages exchanged
- 19,226
- electronic signatures
- 474
- portals
- 105
Before Nestor
An email, a spreadsheet, a shared folder. And always one document missing.
Documents arrive by email, progress is tracked in a spreadsheet, files end up in a shared folder and questions in a chat app. In Nestor, the file fits in one space: the requests, the documents, the messages, and their history.
T3 rental Les Tilleuls, Julie Moreau
Claire Dumont9:46 PM
Thank you for your interest in the T3 apartment at Résidence Les Tilleuls. To review your application, we need some information about your professional situation and the usual documents of a rental file.
01A campaign
Your yearly collection, run as a single campaign.
Every year, the same documents and the same information to gather from hundreds of clients, partners, or employees. You prepare the request once, each person answers in their own space, and you follow everything from one dashboard.
- 01PrepareThe documents you expect and their format, a form to fill in, the campaign deadline.
- 02SendYou pick your recipients from your contacts, filtered by their attributes. Each one receives a link to their own space, with no account to create.
- 03RemindReminders go out on the schedule you set and stop for those who have answered.
- 04TrackThe dashboard shows who opened their space, who answered, and what is left to validate. You validate each document, or send it back with a reason.
- 05AdjustA new recipient joins the campaign along the way. A clarification for everyone goes out in a single message.
- 06Start againThe following year, you duplicate the campaign: recipients, requests, form, and reminders carry over. You adjust the dates, then send it.
- Recipient 1Documents validated
- Recipient 2Has answered
- Recipient 3Has opened their space
- Recipient 4Not opened yet
And the next ones, by the hundreds
The campaign log keeps every sending, upload, and validation, and exports to CSV.
02A file
One recipient among many: their file, from request to signature.
In the campaign, each recipient has their own space. The file does not stop at the initial checklist: you talk, you add to it, you sign.
Your team
Receives the first documents
- The recipient
- Opens their space with the link received, uploads their supporting documents, fills in the form in two sittings
- What you track
- What has been uploaded, what is missing, the deadline
Your team
Replies in the conversation
- The recipient
- Asks which document to provide instead of one they do not have
- What you track
- The conversation stays in the file, next to the documents
Your team
Sends a document back: it is out of date
- The recipient
- Sees “Correction requested” and uploads the right version
- What you track
- The new document awaits your validation
Your team
Adds, for this recipient only, an additional request: their situation calls for it
- The recipient
- Answers it in the same space
- What you track
- The request joins their list of documents
Your team
Sends them a document to sign
- The recipient
- Signs from their space
- What you track
- The signed document and its evidence file are stored in the file
Your team
Validates the last documents and closes their space
- What you track
- The file is complete, its history stays available
Every step is logged, and the decision on each document remains yours. No more rebuilding the state of a file from your emails.
Nestor vs email, criterion by criterion03Three ways to open a file
A file, a group request, or a simple link.
Whatever the starting point, the rest happens in the file's space: messages, additional requests, forms, signature.
One space per file, with the right people on each side.
The messages, requests, forms, and signatures of a file stay together. When a document or a detail is missing, you ask for it in the same place.
- Your team and the people you work with
- Open requests and their deadlines
- The conversation, documents, and their versions
- Contracts to sign
T3 rental Les Tilleuls, Julie Moreau
Claire Dumont9:46 PM
Thank you for your interest in the T3 apartment at Résidence Les Tilleuls. To review your application, we need some information about your professional situation and the usual documents of a rental file.
04Industries
One tool. Very different needs.
- 01Banking and insuranceKYC updates, self-certifications, financing files.
- 02Real estateTenant files, insurance certificates, works quotes, unit sales.
- 03Human resourcesApplications, hiring documents, employee updates.
- 04LegalClient identification, confidential files, signatures.
- 05Investment fundsSubscriptions, portfolio monitoring, reporting.
Call for tenders for works
Each contractor you consult uploads its quote and certificates to its own space, reminders go out on their own, and the condominium board finds the offers in one place.
See the case : Call for tenders for works05Security
Protection that matches what your files contain.
ID documents, payslips, bank details, contracts: here is how Nestor protects what the people you work with entrust to you.
Read the security page- Sovereign hostingEuropean, in France, with no CLOUD Act dependency.
- Encrypted in transit and at restExchanges over TLS, files at rest by the host.
- No password to createThe people you work with get a link or a code by email.
- SSOFor your teams, set up by your administrator.
- Two-factor authenticationWith a passkey, which each user can turn on.
- Rights per spaceWhat each person can do, set person by person.
- Activity logEvery upload, view, and validation, exportable.
- ISO/IEC 27001:2022Nestor is pursuing certification.Process under way
06What they say
“It was a paper process, heavy and with no added value (...) Today, it is digital, secure, and tracked. (...) I can see whether the other person opened it, answered, or completed the information.”
Translated from French.
5 min“It's simple: I'm the trusted third party. There will be a single conversation where I decide to put you, me, and your advisors, if you want.”Laurent GilletLG PatrimoineTranslated from French.
3 min“It really gave us credibility with the notaries: they tell us, we know your file is always complete.”Juliette DuvalAbrinorTranslated from French.
3 min“Since I have automatic reminders, I'm not sitting there wondering: do I need to send a reminder? (...) Everything is in one place, I don't need to search through 50,000 emails.”Nathalie GelsominoSunelisTranslated from French.
07Frequently asked questions
Your questions, our answers.
Do the people I work with need to create an account?
No. They access their space with a link or a code received by email, or with their Google or Microsoft account. On a portal, they verify their email address with a code before uploading.
Can I send the same request to several people?
Yes, with a campaign: a single request, sent to hundreds or thousands of recipients. Each one has their own space, and you track everyone's progress on a dashboard.
How do I know what is missing from a file?
Every request has a status: awaiting an answer, to validate, sent back for correction, or validated. You see progress recipient by recipient, and automatic reminders stop for those who have answered.
Does Nestor verify ID documents?
No. Nestor collects the documents, files them and tracks their status; your teams check them.
Where is the data hosted?
In France, on fully sovereign European infrastructure, with no dependency on the US CLOUD Act. Exchanges are encrypted in transit, and files are encrypted at rest by our hosting provider. Nestor is pursuing ISO/IEC 27001:2022 certification.
Let's take one of your files as an example.
Its documents, its questions, its back-and-forth: we will show you how it would run in Nestor.





