Montigny-le-Bretonneux has 1 data center listed on DataColoc, operated notably by Cyllene SAS. Compare colocation (rack, half-rack, 1U), pricing, certifications and connectivity, then get an instant costed estimate.
Compare data centers in Montigny-le-Bretonneux →The data center listed in Montigny-le-Bretonneux is operated by Cyllene SAS. Available formats range from 1U to 1 baie (1U, 1/4 baie, 1/2 baie, 1 baie): you can start small here, without renting a whole rack. The smallest recorded commitment starts at €49/month for one U, excluding power and connectivity.
2 networks are listed at the sites in Montigny-le-Bretonneux according to public interconnection registries. That number drives your negotiating power: every carrier inside the building is one more quote, with no civil works.
Sites in this city are operated by companies outside US jurisdiction, hence outside the CLOUD Act.
A city has no electricity of its own: the sites in Montigny-le-Bretonneux are connected to the national grid, itself interconnected with its neighbours. What is measured, and what decides, is therefore the country's generation mix. That grid draws 68.8% of its electricity from nuclear (2025). The detail: nuclear 68.8%, hydro 10.4%, wind 8.2%, solar 5.6%, natural gas 3%, oil (fuel oil, diesel) 1.8%. Fossil fuels (coal, gas, oil) account for 5.1% of it. A kilowatt-hour there weighs 41 g of CO2, i.e. 11.2 times less than the world average (458 g), 2025 figure. Concretely: a 3 kVA rack, in a site with a PUE of 1.5, draws 35,478 kWh a year and therefore emits 1.5 tonnes of CO2 a year here. The same rack, same hardware, same PUE, would emit 16 tonnes on a world-average grid. The building has nothing to do with it: the country does.
Source: Ember / Energy Institute via Our World in Data, retrieved 2026-09-14. A site under a direct renewable purchase agreement may show a different balance: that is for the operator to declare.
No earthquake of magnitude 5 or above has been recorded within 200 km of Montigny-le-Bretonneux since 1970, according to the US Geological Survey's global catalog. This record covers 56 years, which is short on a seismic timescale: no recorded earthquake does not mean no hazard. It does not replace the statutory zoning, which alone binds construction.
Source: U.S. Geological Survey, ANSS ComCat, retrieved 2026-09-14. Measured from the site's coordinates.
With a single listed site, Montigny-le-Bretonneux cannot support a disaster-recovery plan spread over two separate buildings within the same town. A second site remains necessary, and it is found in the nearby cities listed below. No Internet exchange point is listed here: traffic will run over transit bought from a carrier, which is billed by bandwidth.
The nearest site outside Montigny-le-Bretonneux is 3 km away, in Trappes. Short distances matter: they drive the cost of a link between two buildings, and whether a backup site is workable.