ConcR GmbH is a Berlin-based construction technology startup founded in 2019 that specialises in real-time monitoring of concrete and other cementitious building materials using Internet of Things (IoT) sensors. The company's core product line includes wireless sensors embedded in concrete structures during construction, paired with the ConcR Box data gateway that transmits measurements via LTE to a cloud-based analytics platform called ConcR Insights.
The system continuously tracks temperature, relative humidity, moisture content, and early-stage compressive strength of concrete, enabling engineers and project managers to monitor curing processes remotely. Compressive strength estimation follows the maturity method and complies with industry standards including ASTM C1074, DIN EN 13670, and DIN 1045-3. The platform supports customisable PDF reporting, threshold-based notifications, and API integration with external project management tools including Oracle Primavera.
ConcR's solutions address several construction challenges: quality control of building materials, floor readiness assessment before installation, formwork asset management, and carbon capture validation. By replacing traditional laboratory-based concrete testing with continuous digital monitoring, the system can reduce construction time by an average of 30 days per project — roughly a 24 percent time saving — while maintaining safety standards.
The company was named Startup of the Year at the Construction Technology Awards 2023, hosted by Ventures Connect as part of the Construction Technology ConFex. ConcR has received funding from IBB Venture Fund and other investors. Clients include construction firms such as ADAM HÖRNIG Baugesellschaft, MOBIL BAUSTOFFE GmbH, and Danish infrastructure company Aarsleff Rail A/S, indicating operations across European markets.