
IT system house with its own workshop for hardware, software, cloud services and repairs.

Liesner Computer e.K.
Velen · VredenNew on Amplifa
About Liesner Computer
Liesner Computer e.K. is an IT service provider headquartered in Velen with a branch office in Vreden. The company supports private customers as well as small and medium-sized businesses with hardware and software matters. Its service portfolio includes maintenance and repair of hardware in an in-house workshop, configuration of PCs and server systems, data recovery, remote support, on-site service, infrastructure analyses, cloud services, cloud telephone systems, as well as leasing and financing models. Products supported include NAS and storage systems (including Synology), telephone systems (Agfeo), network technology (including HPE, Ubiquiti, Zyxel), firewall and security solutions (including Eset, Securepoint, OPNsense), and document archiving with ecoDMS. Virtualization is carried out with HyperV and Docker, and Windows, Linux and MacOS are supported across operating systems. According to its own statement, the company has been in existence for more than 25 years.
- Site
- Velen
- Processes
- Maintenance and repair of hardware (own workshop), Individual consulting, Data recovery, Remote support/remote maintenance, Infrastructure analysis, Leasing/financing, Cloud services/hybrid cloud, On-site service
- Industries
- Private customers (B2C), Small and medium-sized enterprises (B2B)
- 01
Consulting
- 02
Configuration/delivery of hardware and software
- 03
Installation and setup
- 04
Maintenance, remote support and on-site service
- 05
Repair in own workshop
Locations

Velen
DEHead office
- Own repair workshop
Vreden
DEBranch office
Inside the production

Industries
Additional services
History
For more than 25 years, the company has offered suitable IT solutions (founding year not explicitly stated)
- 2025
Introduction of cloud telephone systems as a new offering