the company skis rossignol was founded in 1907 by abel rossignol. entire families of voiron, along with italian immigrants who arrived en masse at the beginning of the century, worked in these factories. on the eve of the first world war, the silk-weaving business used nearly 3,000 looms. at the same time, the rise of paper mills on the banks of the morge, the river crossing the small town, attracted workers to the city. the company radiall was founded as well and the population of voiron grew past 15,000.