Deep-tech software company - Paris, France
DOMSELARDI is a Paris-based deep-tech software company. We build sovereign infrastructure for European organisations in demanding domains - from cryptographic evidentiary records (REMIS) to satellite ground-segment data (Level Zero) - alongside tools for SMEs, regulated sectors and public institutions. Designed to be owned, not rented. Data hosted in France. Eighteen years building software for regulated industries.
Our software runs cleanly, with no advertising cookies and no tracking tools. Your data belongs to you and stays that way - a commitment we keep in every product.
Your data stays on French territory, under European law, on sovereign servers - a sovereignty guarantee that holds for every one of our products.
Our software is designed to be useful from day one - up and running straight away, with no lengthy training course or 80-page manual to get through.
We sell real software you own for the long run. What you pay for is yours - stable, guaranteed access you can build on with confidence.
We focus every feature on what genuinely serves you. We build software that works well today and will still work in five years.
Our products
DOMSELARDI builds real software, shipped and live - including two flagship deep-tech programmes, REMIS and Level Zero. Every product we work on is below - each with its dedicated page on the site and a link to the live product.
R&D
High-risk AI · Compliance
AI operates. REMIS attests.
Evidentiary infrastructure for high-risk AI systems - seals critical events into hashed, signed, qualified-eIDAS-timestamped evidence packets that any third party can verify without exposing the underlying data.
Discover
Platform
Space · Sensor data
Ground-segment data, standardised.
Ground-segment software - a normalisation layer for satellite, ground-station and radio sensor data that ingests heterogeneous raw downlink streams and publishes standards-compliant, application-ready products.
Discover
B2G
Public sector · Sovereign platform
The sovereign base for your public digital services.
A sovereign web platform for the public sector - portal, e-services, forms, documents, validation circuits and dashboards. The recurring needs of administrations and local authorities, already solved, ready to deploy and adaptable to your CCTP.
Discover
SaaS
Software & subscription management · Sovereign
Every licence, subscription and purchase under control.
A sovereign platform that brings every licence, subscription and purchase your organisation pays for or owns into one reliable registry - with a renewal radar so nothing auto-renews unnoticed and no spend is forgotten. For SMEs, businesses and the public sector, hosted in France.
Discover
B2B
Healthcare · Turnkey hospitals
The operational layer of a turnkey hospital.
A white-label, on-premises operations and equipment-management platform for hospitals built by turnkey integrators - installed the same day as the medical equipment, deployed on site, delivered in the owner's own colours.
Discover
SaaS
Appointment-based professionals
The agenda that thinks your day for you.
All-in-one French business software for professionals who run on appointments - scheduling, client records, quotes, invoicing and payment in one place, replacing paper agendas, spreadsheets and separate POS apps.
Discover
SaaS
Real estate · Property management
Property management, clear and sovereign.
A French SaaS platform centralising day-to-day real estate management between syndics, property managers, landlords and tenants - properties, lots, documents, inspections, requests, received invoices, interventions, exports and exchanges in one shared space.
Discover
Our company
DOMSELARDI is a deep-tech software company founded in Paris in 2025. We design and sell our own products end to end, in-house - including evidentiary and space-grade infrastructure. We build lasting tools for European organisations that want full control over the infrastructure they rely on.
Large companies have IT departments and framework contracts. Smaller organisations and public teams often have to make do with tools built for someone else. That is what we are here to change.
Registered office: 133 Rue Saint Dominique, 75007 Paris. From France, we build software to European standards for data sovereignty, privacy and digital independence.
We deliver what we announce, answer to our customers directly and put things right quickly when needed. It is simply how we work - and what builds a lasting relationship of trust.
Our approach
Lock-in is the problem we solve: a lot of business software makes leaving harder the longer you use it. You deserve to stay in control of your tools and your data.
Our software gives you that freedom: you can understand it, export your data in a standard format, and stay free to choose at any time. A good tool earns its place through value, not constraint - and trust is what keeps you.
From the blog
The DOMSELARDI blog is short, focused and product-driven. One article per product, written by the team that ships it - the case for what we built and who it is for.
Logs record. Governance organises. Observability watches. None of them attest. REMIS is the missing layer - a sovereign, eIDAS 2-anchored proof fabric for high-risk AI.
Read the article →The Planificateur Intelligent sequences a mobile pro's day by address, real-time traffic, work zones and buffer times. Commission-free, French, in the contract.
Read the article →Régiva connects syndic, landlord and tenant in one shared space - properties, documents, inspections, received invoices, interventions, exports - tied to the right property and history.
Read the article →A project or a question?
Looking for software for your organisation, or just want to understand whether we can be useful to you - write to us. General enquiries within 24 business hours.
Contact us
