Building services planning competencies and services
The HHM Group is an independent engineering company with offices in Aarau, Basel, Bern, St. Gallen, Zug, and Zurich. The company offers services in comprehensive building technology planning (HVAC+), HVACR, and electrical engineering for building construction and infrastructure projects. Its building technology solutions encompass the areas of building automation, energy supply, photovoltaics, e-mobility, lighting, security & door engineering, and fire protection. Within HHM INFRA, specialists work in the railway, airport, data center, and power plant sectors.
Company and legal form
HHM was founded in Zurich in 1951 by Reto Martignoni and converted into a stock corporation in 1972. The holding company structure has existed since 1999. The shares are wholly owned by management. Over 280 employees work for the HHM Group.
Professional liability insurance
ZÜRICH Insurance Company, policy no.: 15.539.324
The coverage amount is CHF 30 million for personal injury and property damage and CHF 5 million for building damage including financial loss.
Code of Conduct
We operate in a complex, highly competitive business environment. We have been doing so successfully for over 70 years. Our own conduct contributes to how our company is perceived by customers and employees, partners, other stakeholders, and the public. Our
Code of Conduct describes our standards and enduring values.