Siers Groep Oldenzaal B.V.

Underground Utility Infrastructure Engineering For Grid Operators

Founded: Founded 1964
Locations: 1 location

Siers Groep Oldenzaal B.V.

Underground Utility Infrastructure Engineering For Grid Operators

Founded: Founded 1964
Locations: 1 location

About

Siers Groep Oldenzaal B.V. is a Dutch infrastructure contracting company specializing in the design, construction, and maintenance of essential underground utility networks. Operating since 1964 across the Netherlands and Germany, the company delivers comprehensive services for electricity grids, drinking water networks, telecom fiber connections, district heating and cooling pipelines, and lightning protection systems.

Services

Electricity Grid Construction And Maintenance

Siers Groep constructs, expands, and maintains high-, medium-, and low-voltage electrical distribution networks and substations. The service encompasses turnkey neighborhood network reinforcements, transformer station placement, and battery energy storage infrastructure to mitigate grid congestion and facilitate the energy transition.

Drinking And Process Water Infrastructure

Provides complete turnkey water infrastructure services across the Netherlands, from engineering and laying transmission mains to local distribution pipelines and household connections. The service includes pumping station modifications, pipe sanitization, and material upgrades to ensure hygienic, reliable water distribution.

Telecom And Fiber Network Construction

Delivers full-lifecycle engineering, civil excavation, installation, and maintenance for fiber-to-the-home (FttH), FttX, and coaxial telecommunication networks. Siers acts as a complete chain manager ensuring rapid deployment, specialized directional drilling, connection coordination, and ongoing fault management for operators.