Théophile Schneider bought the company bearing his name and a subsidiary called "Société du carburateur Zénith" was formed.

By 1923 the whole range was fitted with overhead valve engines of entirely new design and a variety of coachwork styles.

Rochet-Schneider took a stand at the 20th Paris Motor Show in October 1926, and exhibited their five model range.

[2] Prices quoted below are the manufacturers' prices for cars in "bare chassis" form, leaving the customer to make his own arrangements in respect of a car body: From the mid-1920s onwards the company placed growing emphasis on commercial vehicles although passenger cars were still being sold and still being exhibited on the manufacturer's stand at the 25th Paris Motor Show in October 1931,[3] the manufacturer's last new model being the formidable Rochet-Schneider 26CV with a large 6-cylinder engine of approximately 5-litres displacement along with dual ignition and servo brakes.

[1][3] Rochet-Schneider was bought by Berliet, another Lyon based company, by that time known as a manufacturer of locomotives and commercial vehicles, following the World War II.