Siemens Smart Infrastructure has completed the acquisition of French startup Wattsense, a hardware and software company that offers a plug-and-play IoT management system for small and mid-size buildings.
Wattsense was started in 2017 and is headquartered in Dardilly, near Lyon, France. The company optimizes the technical management of small and mid-size buildings with an IoT solution that enables the adoption of energy management practices in facilities with little or no building management system technology, meeting the needs of building professionals seeking efficiency and sustainability.
Wattsense allows customers to connect a wide range of devices and make them IoT-enabled whilst multi-protocol devices can be onboarded before being connected to the cloud and operated in a Software as a Service (SaaS) model. It makes the benefits of a cloud-based IoT management system for buildings accessible to a wider range of real estate types, including schools, offices, warehouses and retail.
“Together with Wattsense we will accelerate the adoption of IoT systems in a wider range of buildings, bringing the sustainability, comfort and cost benefits to more people and businesses”, said Henning Sandfort, CEO of Building Products at Siemens Smart Infrastructure. “The SaaS business model and innovative technology stack of Wattsense perfectly complement our growing digital portfolio for our customers. We are excited to welcome the talented Wattsense team on board”.

Siemens Smart Infrastructure is a major player in infrastructure digitalization with more than 2.3 million devices connected to its cloud platform. The business has more than 150 digital applications and offerings within its portfolio and has committed to doubling its digital revenues from €700 million today to €1.5 billion by 2025.
For customers in the European Union, the acquisition of Wattsense also supports businesses in complying with the Energy Performance of Buildings Directive (EPBD), which requires buildings in the tertiary sector to be equipped with control and automation systems that improve energy efficiency and reduce CO2 emissions.
Wattsense will remain a separate, standalone unit within Siemens where its solution is present in 22 countries. Its mission is to “enable a zero-carbon emission future for buildings whilst improving the productivity and operations of building operators”.
“Wattsense’s commitment to reducing energy consumption and carbon emissions in the building sector aligns perfectly with Siemens’s vision to create technologies that take society further”, said Louis Vermorel, Founder and CEO of Wattsense. “We are thrilled to join a company with such a rich legacy and innovative culture to scale the reach and impact of our IoT solution”.
You can find more information about Siemens and its acquisition of Wattsense on the companies respective websites.
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