Italian Data Centre Investment Steps Up In Line With Milan’s Increased Hub Importance

Monday, July 31, 2017

After several years of stagnation, Milan now has 3 large campus sites, including SuperNAP, Data4 and Aruba, as well as the Via Caldera interconnect facility. It appears that Italian investment is finally moving to catch up with the rest of Europe.

As a key termination point for traffic coming in from Middle Eastern and North African countries via Sicily and Bari, along with Asian traffic landing in nearby Marseille, Milan is in play as a key hub for connectivity in the region. With around 200+ ISPs, 40+ Carriers and the national peering point (MIX) Milan is the most fibre-dense area in Italy.

Another interesting project, OpenHubMed plans to relaunch the role of Italy in international markets through interconnection and peering services, improve transit and capacity and reduce traffic latency to Mediterranean countries.

Aruba S.p.A

The hosting specialist has already established a 20,000 m2 facility in Ponte San Pietro (Bergamo) close to Milan, with more than 4MW of power – of the 90MW planned for the whole campus – already sold. It will be fully up and running this summer, and will officially open on 5 October 2017. The company has its own dark fibre infrastructure offering a dual path to the Caldera Business Park in Milan. The data centre will run on renewable energy supplied by a number of utilities, as well as a hydroelectric plant and a photovoltaic system, both belonging to Aruba. As well as this, a geothermal cooling system will offer lower energy consumption.


The US firm has opened its first EMEA data centre hub in Siziano, outside Milan investing some €300m. The Italy facility includes 42,000 m2 of data centre space with four data halls, 40MW of power distributed through two 132 kV transmission paths and a proprietary tri-redundant UPS power system. In addition, the facility offers up to 40 kilowatts of power per cabinet, and 200 multi-carrier fibre couples with separate paths.


The company has invested more than €100m in the Cornaredo campus, just 7 km outside Milan over the past couple of years. The DATA4 campus will be interconnected – via multiple redundant fibbers – to the MIX exchange point in Via Caldera (San Siro area) and will allow for the transparent exchange of Internet traffic between all interconnected operators. RETELIT was selected to connect its Milan campus to the Milan metropolitan and Italian national networks, as well as beyond via the sub-sea cable landing stations in Italy.

Infrastructure and data services provider RETELIT has also developed a new backaul product with BICS by combining their respective infrastructures across Italy and Europe using Retelit’s AAE-1 landing in Bari (Italy). The new joint connectivity solution enables AAE-1 submarine cable users to be connected through Bari to Milan as well as other key European locations.


The company has invested around €12m in expanding the footprint at its existing facility in Milan and building a second one elsewhere in Italy. The company operates in West Milan through its colocation business arm Caldera21 which runs a facility in the Caldera Business Park, also home to the Milan Internet Exchange. The current Caldera21 data centre has been built to mirror a Tier IV data centre, has 6MW of power connectivity available and offers 33,368 ft sq of colocation space. The company has expanded its UPS power to 3MW, the maximum capacity possible at the site. The build addresses growing customer demand for both wholesale and “move-in-ready” data centre space in Milan.

Other data centres present in Milan include –

Equinix – 3 facilities ML2, ML3, ML4 (south and north east of the city)

Colt Technology Services SpA (Lancetti)

Mix Srl (at via Caldera)


Seeweb Srl


Keppel DC REIT (acquired 15.3k m2 facilty 8km from Milan for €37.3m in 2016)

Interoute (Virtual data centre)

For more information contact

Philip Low, Founder & Chairman, BroadGroup

Mr. Low founded BroadGroup an Information Media Technology and Professional Services company in 2002. Prior to that time, he held several leadership roles in consulting firms focused on the IT and Telecoms sectors. He has specialised in global developments in the tech sector and has previously lived and worked in the Asia, the Middle East and Europe.

Mr Low’s specialities are consultancy, strategic analysis, marketing strategies, report publishing and event production.