what ouman?
Simply put: OUMAN is an expert at making different HVAC products. Scroll down to learn more about us, our certificates, and our owner.

We’ve grown from a Finnish manufacturer of controllers to an international building automation industry expert. Our solutions are enjoyed by residents, property owners, property managers, contractors, and engineers across Europe. We are the biggest manufacturer of HVAC controllers in the Nordics and produce 1.4 million products each year! OUMAN has four locations in Finland - at Kempele, Rauma, Espoo, and Turku - as well as offices located near Gothenburg, Sweden, and in Tallinn, Estonia. Our factories are located in Kempele (Finland) and Kuressaare (Estonia).
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Certificates & Acknowledgements

Environmental Management System (ISO 14001)

Environmental Management System (ISO 14001)

ISO 14001 is an internationally agreed standard that sets out the requirements for an environmental management system. It helps organizations improve their environmental performance through more efficient use of resources and reduction of waste.

Quality Management System (ISO 9001)

Quality Management System (ISO 9001)

ISO 9001 sets out the criteria for a quality management system and is the only standard in the family that can be certified to. This standard is based on several quality management principles including a strong customer focus, the motivation and implication of top management, the process approach, and continual improvement. These principles are explained in more detail in ISO’s quality management principles. Using ISO 9001 helps ensure that customers get consistent, good-quality products and services.

Strongest in Finland

Strongest in Finland

"A company that has earned the Strongest in Finland -certificate is a powerful influence in the Finnish economy now and in the future."

ernstromgruppen logo


"Ernströmgruppen is a 100 years old family-owned company, with a long-standing competence in several industrial segments. This is partly due to their ability to present strong economic growth, but also to attract a knowledgeable board. In combination with their strong family background, they see these parts as a well-functioning combination. This is how they build better companies for future generations."


Our goal is to create positive change for future generations. To be successful, we must deliver long-term, sustainable results, which in turn increases our competitiveness. We use the sustainability perspectives of environment, social, and governance, “ESG” in short.


Our overall environmental goal is to contribute to reduced environmental impact in line with the Paris Agreement. We aim to have zero net emissions by 2050 and we target to reduce CO2 emissions by 50 % related to our operations by 2030.

Energy mix: The use of fossil fuels must be reduced. Our goal is to reduce fossil fuel use towards 0 %.

Energy consumption: We must constantly challenge ourselves to become more energy efficient. Our target is an annual reduction of at least 5 %, relative to net sales.

CO2 emissions: We must contribute to the reduction of greenhouse gases. Our target is to reduce CO2 emissions by at least 7 % relative to net sales, which is necessary if we are to achieve a 50 % reduction by 2030. (These include the company’s own direct and indirect energy consumption, including the full lifecycle effect of our products.)


Gender: We strive for even gender ratios and diversity in our organizations. We do not operate with quota-based requirements. We hire and promote based on skills and merits, but we actively consider diversity in all hiring and employee development processes. The goal is to achieve a gender balance of 40–60 % on all boards and management teams.

Occupational health and safety: Everyone must feel safe at work. We have a vision of zero workplace accidents resulting in sick leave. Local health, safety, and environmental laws must be followed at all times.


Code of Conduct: We implement and follow our owner Ernströmgruppen’s Code of Conduct. The Code of conduct is reviewed annually.

Whistle blower function

It is important to OUMAN and our owner company Ernströmgruppen that all our employees work in a safe, secure, fair and transparent environment. We therefore encourage employees, customers, suppliers, business partners and other stakeholders to report suspected service errors and / or suspected incorrect events to our whistleblower function.

Together with Whistleblowing Solutions AB, our owner Ernströmgruppen has implemented a whistleblower function (Whistlelink), where anonymous whistleblower reports can be submitted. Aternstromgruppen.whistlelink.com, you will find all relevant information on how to report an incident and how the case will be handled. It is up to you how much information you want to provide, and you are guaranteed anonymity throughout the process. All incoming cases are handled immediately by the company Whistleblowing Solutions, which acts as an external recipient for the Ernströmgruppen’s whistleblower function.