Helmholz

🇩🇪 Germany PLCs, HMIs & Industrial Controllers

PROFINET and industrial networking products including switches, gateways, distributed I/O, routers and secure remote maintenance.

Helmholz GmbH & Co. KG is a German industrial networking and automation company based in Großenseebach, Franconia. Founded in 1988, Helmholz positions itself as an expert for PROFINET and industrial networks. The company develops practical automation products for machine builders and industrial users that need reliable communication between PLCs, fieldbus devices, industrial Ethernet networks and remote service infrastructure.

Products and applications

Helmholz’s portfolio includes PROFINET switches, industrial Ethernet switches, repeaters, gateways, couplers, distributed I/O systems, NAT gateways, firewalls, industrial routers, remote maintenance systems and secure IoT remote access solutions. Its products are used in machine building, automation projects, brownfield network integration, PLC communication, remote machine service, industrial Ethernet infrastructure and smart factory projects where reliable industrial communication and easy setup are important.

Product Categories

Industrial Ethernet Switches

Gateways & Protocol Converters

Remote I/O Systems

VPN Routers

Product Lines & Series

REX Series - VPN Routers for Remote Maintenance
wall IE Series - Remote I/O
NET Series - Industrial Ethernet Switches
S7 Communication Modules

Products & Components

Profibus connectors (DB9, M12)Profinet connectorsIndustrial Ethernet switches (managed/unmanaged)OPC UA serversMPI/DP communication modules for S7 PLCsVPN routers for remote PLC accessRemote I/O modules (wall IE)Industrial PoE switchesDIN rail media converters

Solutions & Applications

Remote I/O for distributed automation

Industries Served

Process ControlEnergy

Technologies & Expertise

Profibus DP/PA protocol implementationProfinet IO technologyOPC UA communicationVPN-based secure remote accessS7 MPI/DP communication protocol

Company facts

Headquarters: Großenseebach, Germany
Founded: 1988
Employees: 51-200 employees

Visit website LinkedIn Email +49 9135 7380-0

Profile transparency

Data status: Publicly researched profile
Sources: Official website, public company and product pages
Last reviewed: April 2026

Publicly researched profile. Supplier information is based on publicly available company and product information and can be corrected, claimed, or removed on request.

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