DELANEAU SYSTEMES provides managed IT services and technology support for small and medium-sized businesses in Île-de-France. The company offers a dedicated point of contact, combining day-to-day assistance with advice and IT infrastructure management to help businesses maintain reliable systems without unnecessary complexity. Its services include proactive monitoring, helpdesk support and preventive maintenance, alongside cybersecurity measures such as endpoint protection, anti-ransomware safeguards, email security and off-site backup.

DELANEAU SYSTEMES also manages Microsoft 365 deployments, migrations and administration, and provides hardware, network and telecommunications solutions. These include fibre connectivity, site-to-site VPNs, secure links between business locations and 3CX telephony. Hosting services use data centres in France and include high availability and disaster recovery and business continuity planning. The company also offers private AI server deployments, either on site or in a data centre, with secure, private language models. Its website highlights continuous monitoring and reports a 99.9% availability figure for hosted servers. DELANEAU SYSTEMES offers a free, no-obligation infrastructure audit, with a stated 48-hour turnaround.