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Our area of expertise

Are you a chartered accountant?

The profession of chartered accountant is at the heart of sensitive data: tax, social or financial, they require rigorous, secure management that complies with current regulations. With the reform of electronic invoicing and interoperability with PDPs, your practices are evolving, and your systems need to become more reliable, productive and agile. For over 15 years, IT Systèmes has been supporting more than 150 accounting firms throughout France. We are familiar with the software environments you use every day (Cegid, Pennylane, ACD, My Unisoft, Agiris, RCA, Silaé, etc.), and know how to integrate, automate and migrate them within modern, secure and high-performance infrastructures, tailored to the specific needs of your profession.

Are you a chartered accountant?
Why choose us?

Our support for accounting firms

Our recognized expertise is based on the support we provide to over 150 accounting firms in France, enabling us to fully understand your business priorities and day-to-day constraints. Our in-depth knowledge of your accounting software ecosystem (Prod, GI, Social, HR, GED, etc.) enables us to offer reliable, secure solutions tailored to the real needs of certified accountants.

IT Systèmes helps you secure your data, modernize your tools and improve your day-to-day efficiency:

  • Support for electronic invoicing and PDP: integration, workarounds and compliance.
  • Secure migrations: accounting software, EDM and cloud infrastructures.
  • Adapted automations: integrations between all your business and other software.
  • Advanced cybersecurity: SOC supervision, PRA, outsourced backups.
  • Collaboration modernization: Microsoft 365, Teams, SharePoint.
  • Dedicated support and facilities management: proactive assistance, adapted to tax season peaks.

Our customers trust us

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Are you a chartered accountant?

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