Engineering and consulting firm specializing in sustainable building installations, including heat pumps, HVAC systems, and control technology for residential and commercial properties across the Netherlands.

Where is S-i-e located?

S-i-e is headquartered in Waarder, Netherlands.

How many employees does S-i-e have?

S-i-e has approximately 10-50 employees.

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S-

S-i-e

SIE Smits Installatie Engineering B.V.

Waarder, South Holland, Netherlands

HydrogenPrivate

Founded 199910-50 employees

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About

Founded in 1999, S-i-e is a private headquartered in Waarder, Netherlands with approximately 10-50 employees specializing in Hydrogen.

SIE Smits Installatie Engineering is an independent consulting and engineering firm founded in 1999, with over 40 years of combined experience. Headquartered in Waarder (South Holland) with an additional office in IJsselstein (Utrecht) since 2022. The company specializes in sustainable, energy-efficient building installations including heat pump systems, ventilation, HVAC, sanitary, electrical, and control technology. Their core focus is ground source heat pumps (WKO) and air source heat pumps, which source approximately 80% of heating and cooling from renewable sources. Services include design, CAD drafting, calculations, and project management for utility buildings, offices, schools, healthcare facilities, residential properties, and industrial buildings.

heat pumpsHVACbuilding servicesenergy efficiencysustainable engineering

Headquarters

Waarder, Netherlands

Founded

1999

Employees

10-50

Company Type

Private