The judgement was announced on Thursday, with Uber escaping the top fine of €1.5 million. Half of the €800,000 has been suspended.
Uber had faced a string of charges relating to its UberPOP service, which enabled ordinary drivers to become taxi drivers using their own cars.
The charges included running deceptive commercial practices, complicity in operating an illegal transport service and illegally organizing taxi services. They also faced a charge of illegally gathering and storing data on clients.
Thibaud Simphal, the head of Uber France and Pierre-Dimitri Gore-Coty, former general manager for Western Europe, had also faced a string of charges relating to UberPOP.
Simphal was hit with a €20,000 fine while Gore-Coty, was fined €30,000, half of which was suspended, the court announced on Thursday.
The UberPOP service was pulled by Uber last year after it provoked the ire of taxi drivers and the government alike. The move followed violent protests by taxi drivers in which Uber cars were attacked (see below).
The UberPOP service, which the company said had 500,000 users before it was taken off the road, had already been banned by the government but it was allowed to continue before a final decision was made by France's top court.
Uber continues to have the support of users in France but the Socialist government had vowed to crack down on the firm under pressure from taxi unions who accuse of it creating unfair competition.
The company, based in California has appealed to European courts to force the government to allow a service it says can create thousands of jobs.
"We are disappointed by this decision," a spokesman Uber France said after Thursday's court ruling.
He said the company would appeal the decision "immediately".
The company said it hopes to capitalize on the more lenient attitude of the European Commission that "has published guidelines that encourage innovation in the industry,".
It's not the first time Uber has been in trouble with French courts.
In January this year a court ordered it to pay €1.2 million to a French taxi group.
The payment followed a complaint that Uber drivers were acting as traditional taxis -- waiting in the street in the hopes of picking up passengers.
And in December last year Uber was fined €150,000 for "misleading commercial practices" linked to its UberPOP services.