Under the Sea in Issy-les-Moulineaux can be privatized for company dinners, product launches, team evenings, seminars and private parties, with up to 250 guests standing or 170 seated. The restaurant belongs to the Ephemera group, which runs themed venues in France, and it opens its Issy address to groups of more than 16 people.
Seminars and company events
The group offer covers professional events such as conferences, seminars, product launches and filming, as well as team dinners and team building outings. The setting does part of the work: high-definition projections and a sound design take guests from coral reefs down to the deep sea, which keeps a team dinner from feeling like another meeting room. Organisers who need a screen should say so in the request, because the operator offers custom screen content, adapted layouts and tailored experiences on request.
The site does not describe a separate meeting room with equipment, so this is a venue for dinners, receptions and short presentations inside the restaurant rather than for a full-day plenary. For a seminar, many organisers combine a working session elsewhere with a dinner here.
Weddings and receptions
The operator promotes birthdays, family gatherings, reunions and evenings with friends for private guests. Weddings are not mentioned on the official pages, so couples should ask directly before counting on the venue for a ceremony or a wedding dinner.
Rooms and capacities
The group lists the Issy restaurant at 250 people standing and 170 seated when the whole venue is privatized. Two group sizes are used on the site: parties under 16 guests book a table through the restaurant, and parties above 16 go through the privatization request. Dedicated group menus are offered from 17 guests. A virtual tour of the space is available from the group page.
Catering
Cooking is homemade with Mediterranean flavors, built on fresh and seasonal products, and the site mentions vegetarian options. A menu for the event is designed by the in-house chef team. The restaurant has free Wi-Fi, high chairs and step-free access for guests with reduced mobility. Meal vouchers are accepted for regular service.
Getting there
The restaurant is at 1-3 rue du 4 Septembre in Issy-les-Moulineaux, a short walk from Porte de Versailles station on Paris metro line 12. It is less than 400 meters from the Paris Expo Porte de Versailles exhibition center, so it suits exhibitors and visitors who want a dinner or client reception after a trade show day.





