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Development and maintenance of IWS

Contract 2025S005580000 · notified in 2025

In 2025, the City of Paris awarded contract 2025S005580000, "Development and maintenance of IWS" (services, prestation d'intégration et de maintenance du paramétrage), to Isilog for a maximum of €6M.

Source: the City's contract list, opendata.paris.fr, data as of 29 September 2026.

Original label (the City's contract list) : « DSIN -EVOLUTION ET MAINTENANCE IWS » · SERVICES · Configuration integration and maintenance services · Information & communications technology · IT · carried out in Paris · social clauses · environmental clauses

€6M
contract ceiling — what was paid on it is not published
Signed on 21 January 2025 · running until about January 2029 · 4 yrs
Ongoing20 Jan 2029
Amount notified to the State: €1.5 M, i.e. 24% of the ceiling

Company selected

Isilogregistered office Saint-Herblain (44800) · headcount 50 to 99 employees · SIRET 38908006000079

The competition

1 bid received

Median for this procedure in 2025: 1 bid, across 126 comparable contracts. Contract awarded without prior advertising or competitive bidding · awarded to 1 company

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

Contract no. 2025S005580000 · scope M57 Ville · See this contract’s exact record on opendata.paris.fr ↗

See also

Overview

Every contract of Isilog1 contracts with the City · signed in 2025€6MConfiguration integration and maintenance services contracts, 2025The category's biggest contracts and suppliersThe City’s contracts in 2025The year’s total, purchase categories and largest contracts€4.86B