CIEM (Switzerland) - AllCarIndex

Compagnie de l'Industrie Électrique et Mécanique (CIEM) was a Swiss automobile manufacturer based in Geneva, active from 1902 to 1905. The company initially focused on electric equipment and began producing electric motors and internal combustion engines for vehicles made by other manufacturers starting in 1901.

CIEM gained recognition for its early steam tricycle, the Thury-Nussberg, which was notable for its high top speed of 25 mph (40 km/h) and was constructed in the company's workshops in 1877. At the Paris Salon in late 1902, CIEM showcased an electric town car, reflecting its commitment to innovative automotive technology.

In 1903, CIEM introduced two hybrid models that combined internal combustion engines with electric drive systems. The 8 hp model featured a V2 engine, while the 16/24 hp model was equipped with a V4 engine, both of which were paired with a dynamo to power the rear wheels through electric motors. By 1905, CIEM developed two new engines: a vertical twin 8/12 hp engine with a displacement of 2077 cc and a 4-cylinder 16/24 hp engine with a capacity of 4562 cc. These models, along with an electromobile, were also presented at the Paris Show that year.

Despite interest from notable figures such as Charles Stewart Rolls, who considered placing a substantial order and securing the sole agency for Great Britain, CIEM faced challenges that prevented these plans from materializing. Following its brief period of production, the company transitioned to manufacturing cars under the brand name Stella starting in 1906.