The story
André Leroux and André Pisart founded the company in 1919. The company's headquarters were on Boulevard de Waterloo in Brussels. In the same year, the production of automobiles, designed by Leroux, began. The brand name was ALP.
From July 1920, the company name was changed to SA Mécanique-Automobile Soméa. It is unclear whether this was a name change or a new owner. Baron Pierre de Caters was president, Germanès, Mulders, Leroux and Pisart were involved. A new factory was built in Vilvoorde. In 1921, Leroux left the company. Paul Bastien was hired as the new designer. The new brand name Soméa was introduced in December 1921 at the latest. Production ended in December 1923 and the company was dissolved.
From Wikipedia’s article on ALP (automobile), shared under CC BY-SA 4.0.3