ULTRANOIR
Between 2018 and 2026, ULTRANOIR won 3 public contracts from the City of Paris, worth €580k in total (maximum amounts notified), mostly in software maintenance.
Source: DECP via opendata.paris.fr, data as of 14 September 2026.
Ultranoir
registered office in PARIS · headcount 11 · founded in 2005 · SIREN 484717020 · view on annuaire-entreprises.data.gouv.fr ↗
580k €
in contracts signed with the City since 2018 · ceilings, not spending
The contracts signed
Largest first.
Pariculteurs Platforme Appels à Projets Maintenancesigned on 12 Jan 2018200k €Hébergement.Maintenance.evol.plateforme Informatique Parisculteurssigned on 28 Dec 2021190k €Hébergement, maintenance et évolution de la plateforme informatique ULTRANOIR pour les besoins d’appels à proj…signed on 6 Jan 2026190k €Year by year
200 k € in 2018 · 190 k € in 2026
Click a year to see its amount.
What for
Each category opens the page of every supplier in that category.
Contract ceilings, not spending: the City does not publish what was paid. A shared lot shows the whole lot’s amount. Source: City of Paris, DECP.