About us

Our mission is to bring innovative solutions for safety, comfort, and energy savings to manufacturers and users of electrical appliances for the heating of air and water.


70 year anniversary : Cotherm celebrates another milestone. The company was founded in 1948 in Grenoble, France by the Serigny family, specializing in the design and production of thermostats for electric storage water heaters.

Today it is a market leader in temperature and energy management solutions.Export sales, driven by a will to expand into new geographical markets, first started in the 1950s.  In the 1980s and 90s, Cotherm significantly expanded its base with the creation of both sales and production subsidiaries and joint venture partnerships.


For the past 18 years, significant marketing and R&D efforts have led to a variety of innovative products in the area of energy management.  New solutions are presented each year to meet global market evolutions in the areas of energy efficiency, transition to renewable energies, smart grid and connectivity.

With different hybrid technologies, Cotherm has become an expert in water heating technologies, working with major Original Equipment Manufacturers worldwide.  Cotherm products can be found in every continent.

Our management is committed to pursuing our vision as a market leader working in partnership to build value with our long term partners.



The ability to serve our worldwide customer base in the best possible manner is rooted in a set of values originally inspired by the family origins of the company.

If the shareholding has evolved over time, the spirit of the company remains firmly entrenched in the values of : Agility, Efficiency, Commitment and Respect. All contribute to a teamwork approach both within Cotherm and through partnerships with our customers.









Cotherm expertise developed over the last 70 years is an important basis for an outstanding level of quality.

Working in quality is a daily effort to continuously improve products and processes beyond the industry accepted standards and certifications.
In today’s rapidly evolving industry and regulatory context, special care is dedicated to reaching the highest standards of excellence.


Homologations & CertificationsOur products are approved by standards :


Quality and Environment

Consistent with its strategy, COTHERM has a system of Management of Quality and Environment certified ISO9001 and ISO14001.



WEEE Compliance

COTHERM is an environmentally responsible company. As part of this responsability we are commited to ensuring our compliance with the Waste Electrical and Electronic Equipment (WEEE).



Cotherm know-how in all steps of the product cycle starts with advanced innovation.

New ideas are transformed into reality with mechanical design, software algorithms, hybrid technology integration, and performance materials.  To satisfy the high levels of excellence required by our customers, an in-depth product qualification program leads us to test products in both high stress environments and through advanced customer application testing in our many R&D laboratories.

The mass production each year of millions of parts uses a variety of technologies in the production processes such as electronics, plastics molding, surface treatments, metals processing, and using automatic, semi-automatic and manual assembly.