In the La Défense business district, a company based in Nanterre is experimenting with a mode of transport radically different from crowded metros and polluting vehicles. The initiative takes place in a tense context: with the monthly Navigo pass which jumps to €90.80 per month from January 2026, employees are looking for solutions to get around the 2.3% increase in prices imposed by Île-de-France Mobilités.
Travel for free by car
The idea came to fruition last week by the PullCoo group of entrepreneurs. The project is based on a fleet of electric cars and alternative solutions such as enhanced carpooling and autonomous shuttles, aiming to eliminate CO2 emissions while streamlining daily journeys, linking Nanterre to La Défense without using the overloaded RER A or saturated tram lines during rush hours. Unlike public transport financed by users and employers via mobility payments, this test relies on the company’s internal self-financing, potentially via partnerships with green mobility operators.
With its 100,000 daily workers concentrated between 8:30 a.m. and 9:30 a.m., La Défense alone embodies the chaos of urban mobility in Île-de-France. This free service targets precisely this problem, by offering several self-service alternativesaligned with the inter-company mobility plans driven by the Île-de-France Region for years. Concretely, cars are directly parked in the Q-Park at Parvis de la Défense, a strategic space accessible 24 hours a day, 7 days a week. Questioned by our colleagues from Actu Paris, Bénédicte Willems, operational director at PullCoo explains: “It’s car sharing, so you have to use an application, enter a code, take photos for the inventory and the car can start“.
Towards a 100% carbon-free Defense?
This test in Nanterre comes at the right time, while Paris Ouest La Défense is pushing soft mobility in its territorial project. If the first tests prove conclusive, they could inspire a larger network throughout the Île-de-France region. What remains is its validation by users, who are primarily concerned by the measurement: duration of the pilot, adoption rate, and actual measurement of CO2 saved. Faced with an annual Navigo which comes close to €1000, this free service could well redefine standards on the network. The Nanterre-based company is opening the breach, but several associations such as France Nature Environnement are already calling for the system to be opened to non-employees to avoid the creation of a private club.
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