Public contracts of Riantec · 2025

Lot 1 : terrasements voirie

The largest contract Riantec awarded in 2025, out of 10.

Contract · Construction and Bâtiment · Travaux · carried out in 56670

583k €

contract ceiling — what was paid on it is not published

Signed on 17 October 2025 · ended around February 2026 · 0.3 yrs

Ended16 Feb 2026

Who won it

Colas France (Établissement de Lorient)SIREN 329338883

The competition

2 bids received

Adapted procedure · awarded to 1 company

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

View the consolidated DECP (data.gouv.fr) ↗

The form of the contract

PriceMixte

Published amendments6

Subcontracting declaredyes

Other contracts of Colas France (Établissement de Lorient) in Riantec

Lot 10 - VRD - espaces extérieurs202483k€Lot1 terrassements - voirie202458k€Marché de voirie à bon de commande2023360k€

All public contracts of Riantec

Marchés de plus de 40 000 € HT déclarés à la notification (DECP) : montants des contrats, pas les paiements. Les plus petits marchés ne sont pas publiés ; les montants manifestement erronés sont écartés.

Source: Public procurement — DECP (data.gouv.fr)·Data ↗·Method →