The SER company (Sign and Equipment of the Road) was established by the old sales and technical manager of Théry Hindrick in 1996.
This small company is implanted in the north of the France, it proposes three ranges of traffic lights, but factory also equipments of sign river, roadsign (borders, electronic displays) and of traffic control.
It is also the supplier of the pedestrian signal and the LED light sources for the city of Paris.
SER's traffic lights are especially visible in the North of France.
SER was closed in 2015.