IT open source, for ambitious companies

Complete open source IT solutions for ambitious companies

Take back — or take from day one — full control of your information system, with secure, open source, evolving infrastructure.

Server room managed by Trustiatis
800+servers & instances
Up to -60%on recurring IT costs
Sovereign infrastructuresecure and auditable
Open source ERP/CRMDolibarr, no per-seat license
Integrated AI agentsn8n, MCP-compatible
The problem

Traditional IT locks you in, open source gives performance back

Traditional IT infrastructure imposes high costs, heavy vendor dependency and low flexibility. The result: loss of control, exploding budgets and growing complexity.

Our offers

An open source approach for every layer of your IT

01

Infrastructure you control, not one you endure

We design and deploy complete IT infrastructures built on open source technologies. The goal: control over your information system, data security, and service continuity.

180+managed user workstations
800+managed servers and instances
Learn more
Data centre server room
02

Your entire business management in a single tool

We integrate and customize Dolibarr to centralize company management and automate internal processes. The ERP becomes the central system steering your business.

110+integration audits delivered
75+SaaS instances deployed, all plans combined
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Business management dashboard
03

Workflows that work while you focus on what matters

A modern approach to automating tasks, connecting tools and embedding artificial intelligence in the company. We connect your tools to automate repetitive tasks and bring AI capabilities into business processes.

185+integration audits delivered
125+SaaS instances deployed, all plans combined
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Visualization of an automated data network
04

A digital presence that converts, not just exists

Creation of professional websites and applications, SEO-optimized and connected to your business systems. Built to generate leads, improve visibility and integrate with your information system. Custom applications on request.

260+design audits delivered
260+websites and applications built
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Web design workstation
New — Trustcollab, Trustagents & Trustigateway Self-hosted collaboration (Jitsi, Matrix, Thunderbird…), AI agents running around the clock connected to your Git repos, and an IoT gateway to connect your physical environment to it all.
Our values

An information system controlled end to end, with no vendor lock-in

Data sovereignty

Your data stays under your control, on infrastructure you can audit.

Lower recurring costs

No more per-user licenses or costs that climb with your growth.

Total flexibility

Every component can be replaced or extended without rebuilding everything.

Advanced customization

The system adapts to your processes, not the other way round.

Continuous scalability

An architecture designed to grow with your company.

Method

A structured rollout in 5 steps

01

Audit of the existing system

We start from the real state of your IT, not a generic template.

02

Target architecture design

An architecture sized for your current needs and the next 3 years.

03

Open source deployment

Progressive rollout, with no service interruption for your teams.

04

Team training

Your staff become autonomous on the new tools, not dependent on us.

05

Support & continuous evolution

The system evolves with your business, not the other way round.

Results

Concrete gains for your company

-60 %
peak reduction in recurring IT costs
48h
to deliver a production website
12h
to deliver a secured Dolibarr instance
0
per-seat license in the whole stack
They trust us

Real feedback from real clients

“Integrating Dolibarr let us centralize all our sales and financial management. We gained visibility and automation on our internal processes. A simple, effective site that generated real traffic for us.”

Immochecking

“We completely overhauled our IT infrastructure with an open source approach. Costs went down and system stability is significantly better. Server and network management is now much clearer.”

Workynet LLC

“Thanks to the automated workflows, we cut a huge amount of manual work. Processes between tools are smooth and part of our operations is now automated. We even offer their solutions to our own clients.”

Sey Conseil

“Our site is now connected to our internal system. Leads arrive directly in our CRM and part of the process is automated. The middlewares were delivered in a dedicated GitLab and we truly own our whole IT stack.”

Crealyss Game

“We needed a simple, modern website, easy to update, to present our association and our activities. The delivered site fits our need perfectly: clear, structured, and it makes it easy to share information with the public.”

Tennis 4 Development

“I finally have a professional brand image, consistent with my expertise and the value I bring to my clients. Today my positioning is clearer, my communication is more credible, and I finally feel aligned with the image I wanted to convey.”

Naf Industry
★★★★★

Integrating Dolibarr let us centralize all our sales and financial management. We gained visibility and automation on our internal processes. A simple, effective site that generated real traffic for us.

IMImmochecking
★★★★★

We completely overhauled our IT infrastructure with an open source approach. Costs went down and system stability is significantly better. Server and network management is now much clearer.

WLWorkynet LLC
★★★★★

Thanks to the automated workflows, we cut a huge amount of manual work. Processes between tools are smooth and part of our operations is now automated. We even offer their solutions to our own clients.

SCSey Conseil
★★★★★

Our site is now connected to our internal system. Leads arrive directly in our CRM and part of the process is automated. The middlewares were delivered in a dedicated GitLab and we truly own our whole IT stack.

CGCrealyss Game
★★★★★

We needed a simple, modern website, easy to update, to present our association and our activities. The delivered site fits our need perfectly: clear, structured, and it makes it easy to share information with the public.

T4Tennis 4 Development
★★★★★

I finally have a professional brand image, consistent with my expertise and the value I bring to my clients. Today my positioning is clearer, my communication is more credible, and I finally feel aligned with the image I wanted to convey.

NINaf Industry
★★★★★

The site delivered meets our expectations perfectly: simple, well structured, and it highlights our actions. Today our members and partners find information easily, and we have better visibility online.

VEVerticalVoid
★★★★★

Setting up the website improved our visibility and centralized incoming requests. At the same time, managing interventions became clearer and more organized, saving us a lot of time day to day.

VEVerticanilsme
★★★★★

We wanted a website in the image of our agency: clear, modern and professional. The result perfectly showcases our work and strengthens our credibility with international clients. The result is stunning.

RCRed Collective
★★★★★

We needed a simple, professional site to present our HVAC business and let clients reach us easily. The result matches our expectations perfectly: the site really showcases our company.

SASanioise
★★★★★

We needed a lively website to present the troupe, our shows and our news. The result reflects our world well and now makes it much easier for us to communicate about our projects.

LFLes Fleurs Obscures
★★★★★

My site needed to be reworked and migrated to a more reliable setup. The intervention restored it, secured its management, and gave me a much sounder base to build on. I've since entrusted the ongoing editing and upkeep of the site with full confidence.

CCChristine Cibert

Frequently asked questions

Is it really more cost-effective?

Yes — you eliminate costly proprietary licenses, the extra fees tied to closed solutions, and dependence on a single vendor. You get a standardized, optimized, durable information system.

What if our needs change?

Thanks to our modular building blocks (Trustiaboot, Trustinstance, Trustistack), your IT system can evolve progressively: add a VPN, reinforce cybersecurity, integrate NAS storage, and so on. You only pay for what you need.

Why choose open source over proprietary solutions?

Open source reduces costs by removing paid licenses, while offering transparency, flexibility and independence. The solutions we provide are standardized, proven and secured.

Is open source really secure?

Yes. Open source technologies are used by the largest companies and continuously audited by thousands of developers worldwide. At Trustiatis, we add another layer: audit, supervision, updates and proactive support.

What if I have a technical problem?

You're not on your own. Unlike often-limited community support, we offer responsive professional support with clear SLAs. Our experts handle your incidents and provide ongoing follow-up.

How do you guarantee regulatory compliance (GDPR, ISO 27001, etc.)?

Our experts guide you through best practices and processes. With the Pack Must, you get full support toward compliance and certifications.

Who installs and maintains the solutions?

We handle installation, configuration and regular updates. You get the simplicity of a turnkey setup and the peace of mind of professional support, without managing everything in-house. Interventions happen remotely, with no disruption for your teams.

Does Trustiatis sell open source licenses?

No. Open source software is distributed free of charge under open licenses (GPL, MIT, Apache, etc.). What we provide isn't the license — it's installation, configuration, audit, compliance work and professional support around these technologies.

What are my obligations if I use open source software?

Generally the obligations are simple: respect the software's license (credit the author, share modifications if the license requires it). At Trustiatis, we guide you to make sure your usage stays legally compliant.

What if I'm able to manage my own infrastructure?

If you're able to self-manage, we transfer your IT system directly onto the cloud account you create, ready to use and documented — free of charge, within 72 hours of you opening your own account.

Request your free audit

More than an IT provider: a systems architect guaranteeing total sovereignty over your IT tools.