Cœur Défense · on foot
28 modular rooms, seating up to 120 people.

Comet · Puteaux
For teams based in Puteaux, Comet Cœur Défense is a few minutes' walk away, at the foot of the La Défense esplanade: 28 modular rooms in natural daylight.
Fancy some green? The Arboretum in Nanterre hosts your large formats, up to 450+ participants.
Since 2016, more than a million participants welcomed. Comet is a certified B Corp company.
Cœur Défense · on foot
28 modular rooms, seating up to 120 people.
Arboretum · Nanterre
The off-site in the green, up to 450+ participants.
A dedicated contact
One person at Comet, from the first brief to the day itself.
All inclusive
Room, technical equipment, the chef's catering, on-site team.
On foot from central Puteaux across the esplanade, or by RER A, metro line 1 or tram T2 (La Défense station).

Tell us about your event and receive an all-inclusive proposal in under 24 hours.
Or come and visit: it speaks for itself.
Comet Cœur Défense sits in the tower of the same name, at the foot of the La Défense esplanade, so a few minutes' walk from the offices of Puteaux. Its modular rooms have natural daylight, which is anything but a detail for a working day: a training session or a committee that runs seven hours does not feel the same depending on whether you can see outside.
From central Puteaux you walk across the esplanade. For participants coming from further afield, La Défense station concentrates the RER A, metro line 1, tram T2 and the Transilien L — few addresses in the Paris region are as simple to reach from any starting point. That is the decisive argument when your guests come from several sites.
Board meeting, department meeting, training, working session, client presentation, breakfast: these are the formats Cœur Défense is built for. What they have in common is being short, recurring and intolerant of any technical hiccup. Video conferencing, projection and sound are installed and tested before you arrive.
The room, the technical equipment, the catering and the on-site team come in a single price, with a dedicated contact from quote to event day. You are not running a caterer, an AV supplier and a site manager in parallel: that is what separates an operator from a bare room rental, and what makes the final cost predictable.
When the event changes scale — annual off-site, convention, summer party — Comet Arboretum takes over in Nanterre, in a park on the banks of the Seine, a few RER stops away. You stay on the same western axis, with the same contact, without starting the brief from scratch.
If your participants arrive from the Paris stations rather than from the west, Comet Place des Victoires and Comet Bourse (Paris 2nd) put everyone on an equal footing, and Comet Bercy covers the east, minutes from Gare de Lyon. The choice of venue depends less on the room than on your guests' average travel time.
Comet venues hold an overall rating of 4.7/5 on Google and a client satisfaction score of 99.5/100, measured across more than 2,500 respondents, on welcome, catering and technical reliability. Comet is a certified B Corp company and has welcomed more than a million participants since 2016.
At La Défense, Tuesday-to-Thursday slots go first, and the September return is often booked before the summer. Describe your project in two minutes: you receive an all-inclusive quote within 24 working hours, and a visit remains recommended before you confirm.