Our companies

the group

Our companies operate both independently and together as a group. In a truly smart building, you will most probably find products from several of the companies within Bemsiq. Our primary customer segment is system integrators, who use our products to design energy and cost-efficient solutions for their customers. We also work with utilities and energy service companies, where we deliver solutions for metering.


Product areas



Your Top Energy Information Provider

DENT Instruments develops, manufactures and sells power meters, data loggers as well as test and measurement instruments of the highest quality whose robust design, small size, and remote data acquisition make them the loggers of choice worldwide.

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A North American leader in HVAC sensors

Greystone Energy Systems, has over 30 years of experience in designing, manufacturing, and supplying HVAC sensors and transmitters for the building automation industry.

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Sensing tomorrow

ELSYS is a leading provider of LoRAWAN® sensors used in smart building applications globally. Our ambition is to offer the market a full assortment of technology leading IoT sensors, recognized for high quality and market leading radio performance.

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Value in every measurement

Elvaco is specialized in energy connectivity and infrastructure, from meters and sensors to cloud-based systems and services. Our products and services are used for energy efficiency, billing and statistics by thousands of companies around the world.

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Easy to use easy to change

bastec develops systems used to control and monitor ventilation, heating, cooling and other technical systems in buildings. Our building automation system BAS2 is used in all types of buildings, ranging from offices and apartments to hospitals and science labs.

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Evolving measurement and control

produal is your high-quality partner for energy-efficient building automation measurement and control. Our wide product offering includes controlling, measuring, actuating, and commissioning, completed with system components. Versatile, precise, and reliable measurements lay the foundation for the ever more digitalized building automation. Measure – be sure.

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Swiss design and technology

sensortec stands for innovative building automation sensor technology. An independent manufacturer and developer, Sensortec’s sensors cover the full range of building technology requirements. Working with high-quality materials and components allow us to manufacture our products to the highest quality standards. In addition to our comprehensive standard product range, Sensortec AG also develops and produces customised products such as room control units for cutting edge interior design.

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Encompassing approach

S+S Regeltechnik offers high-performance sensor technology ‘Made in Germany’ with added value and security of investment. With a strong passion for quality and precision, we design, develop, program and manufacture all of our sensor devices in-house – for satisfied customers worldwide.

Visit S+S Regeltechnik