Pierre Agnes, 54, set sail on Tuesday morning and then sent a message to the Port Authority saying it was delayed due to heavy fog. His boat was found near Otsego, a famous surfing location north of Biarritz.
If the French are alone, rescue workers can not say clearly.
Three helicopters and two boats are looking for Agnes, while agents search the coast. According to reports, although the wind is very light and visibility is high.
Quiksilver, the Australian surfwear company currently in the United States, recently changed its name to Boardriders to regroup other brands, including the DC Shoes and Roxy apparel brands.
Agnes joined the company nearly 30 years ago and has long worked for Quiksilver’s European headquarters in Saint-Jean-de-Luz, south of Biarritz.
Earlier this month, Boardriders said it is preparing to acquire Australian rival Billabong to create a group of 630 stores in 28 countries.