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

Études et missions géotechniques, diagnostics et essais de sol, diagnostics de pollution

€4M

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

Signed on 24 June 2026 · running until about June 2030 · 4 yrs

Ongoing24 Jun 2030

That is at most ~€1M a year on average: a maximum too.

Who won it

SagaIngénierie, études techniques · registered office Grigny (91350) · headcount 20 to 49 employees · SIREN 453887176

A contract awarded to a consortium of 3 holders; above, the main holder. With it: Tesora, Sol Sondages. The amount is the whole contract’s: the DECP does not publish each holder’s share.

The competition

12 bids received

Median for this procedure in 2026: 3 bids, across 20741 comparable contracts. Simplified procedure · awarded to 3 companies

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

Number 5 by amount of the 45 contracts Communauté d'agglomération de Saint-Quentin-en-Yvelines published for 2026.

Contract details (procedure, price, amendments, lots)

Procedure : Adapted procedure: the lighter procedure allowed under the EU thresholds

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

Price : Unitaire

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.