Demival was founded in 1966 in rented premises of 550 m² on Kortrijksesteenweg in Deinze.
In 1970, construction began on the first section of the premises at 169 Machelenstraat in Deinze, which over the years has grown into a building extending over 12,900 m².

In 2006 came the opening of a brand-new air-conditioned building with a floor space of 3,700 m² and usable space of 6,550 m² at 128 Machelenstraat.

Demival currently has a staff of 600 workers, 470 of whom are disabled, and a usable production area of 20,000 m²