Public contracts of Communauté d'agglomération de Saint-Quentin-en-Yvelines · 2026

Réalisation du Schéma Directeur d’Assainissement et de Gestion des Eaux Pluviales (SDAGEP) de Saint-Quentin-en-Yvelines

€2M

maximum contract amount over 4 years — what was paid on it is not published

Signed on 6 March 2026 · running until about May 2030 · 4 yrs

Ongoing6 May 2030

That is at most ~€480k a year on average: a maximum too.

Company selected

NaldeoIngénierie, études techniques · registered office Lyon (69003) · headcount 100 to 199 employees · SIREN 319242731

The competition

4 bids received

Median for this procedure in 2026: 3 bids, across 10562 comparable contracts. Open tender · awarded to 1 company

Open data gives the contract holder and the number of bids. The identity of unsuccessful bidders is not published.

Number 15 by amount of the 54 contracts Communauté d'agglomération de Saint-Quentin-en-Yvelines published for 2026.

Contract details (procedure, price, amendments, lots)

Procedure : Appel d'offres ouvert

Price : Mixte

Published amendments : none

Subcontracting declared : no

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.