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

Travaux de création, d’extension, de réhabilitation ou de renouvellement des réseaux d’assainissement de Saint-Quentin-en-Yvelines

€32M

framework agreement: a maximum envelope for orders over 4 years, not spending — what was paid on it is not published

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

Ongoing4 Mar 2030

That is at most ~€8M a year on average: a maximum too.

Company selected

Watelet TPConstruction de routes et autoroutes · registered office Gennevilliers (92230) · headcount 250 to 499 employees · SIREN 412397531

A contract awarded to a consortium of 2 holders; above, the main holder. With it: Sogea Île de France. The amount is the whole contract’s: the DECP does not publish each holder’s share.

The competition

5 bids received

Median for this procedure in 2026: 3 bids, across 10562 comparable contracts. Open tender · awarded to 2 companies

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

Number 2 by amount of the 54 contracts Communauté d'agglomération de Saint-Quentin-en-Yvelines published for 2026.

Other contracts of Watelet TP in Communauté d'agglomération de Saint-Quentin-en-Yvelines

Requalification du mail du temps perdu à Plaisir2024 · maximum over 8 months917€k Marché subséquent n°5 à l’accord cadre multi-attributaire relatif à…2024 · maximum over 4 months113€k Travaux de requalification du Boulevard Michel Miserey à Maurepas2023 · maximum over 18 months2.2€M

Contract details (procedure, price, amendments, lots)

Procedure : Appel d'offres ouvert

Framework agreement : yes: orders follow, the amount is a ceiling

Price : Unitaire

Published amendments : 1

Subcontracting declared : yes

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.