With the latest technical developments and with a wealth of experience spanning 68 years of HHM, 200 committed employees realise demanding, sustainable projects. With six independent, networked offices, HHM guarantees customer proximity and continual support throughout the whole of German-speaking Switzerland. HHM’s knowledge is in comprehensive electrical engineering design. This includes both the classic electrical engineering as well as engineering services in the competence fields of energy, lighting, security/fire protection and building technology design.