Public contracts of Nantes Métropole · 2026

Travaux de rénovation du Grand Auditorium, de la Grande Halle et de la Galerie de Liaison à la Cité des Congrès de Nantes

Serrurerie et machinerie scénique

€1.4M

maximum contract amount over 22 months — what was paid on it is not published

Signed on 4 March 2026 · running until about January 2028 · 22 months

Ongoing3 Jan 2028

That is at most ~€764k a year on average: a maximum too.

Who won it

Titulaire sans SIRET

The competition

2 bids received

Median for this procedure in 2026: 3 bids, across 8946 comparable contracts. Open tender · awarded to 1 company

Open data publishes the winner and the bid count — never the identity of unsuccessful bidders.

Number 42 by amount of the 311 contracts Nantes Métropole published for 2026.

Contract details (procedure, price, amendments, lots)

Procedure : Appel d'offres ouvert

Price : Forfaitaire

Published amendments : none

Subcontracting declared : no

Social considerations : Clause sociale

Environmental considerations : Critère environnemental

The filing gives no SIRET for the contractor: since we cannot check it is not a person, the name is not published.

Contracts above €40,000 excluding VAT, as declared when they are awarded (DECP): contract amounts, not payments. Smaller contracts are not published; obviously wrong amounts are set aside.